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Our CP-movies are private non-profit productions to promote the knowledge on carnivorous plants (CP) and botanical rarities in an entertaining fashion.

Last update 2020 May 3


Zur deutschen Sprache wechseln / German language.

This is an overview of our movies on carnivorous plants (CP) and botanical rarities, briefly described in the English language.
Most videos provide English subtitles, some are completely in English.
Just click on the thumbnails to view the film on YouTube
. We wish a good entertainment!
Soon more ...
Click on this text to get the INDEX with BRIEF DESCRIPTIONS
of all single lectures of the ICPS World Conference Tokyo (2002).
newMuscleman Catapult TrapHD Zeichen
Muskelprotz Katapultfalle_Thumb
The catapults of the sundew Drosera glanduligera fling passing prey animals in a sensational manner onto the sticky trapping leaves. Already in 2012, we measured and published this enormous - 75 ms - speed for a capture event, in the labs of the Plant Biomechanics Group of the University Freiburg (Germany). In this film, we show again by measurements with Dr. Simon Poppinga at the labs of the bionics specialists in Freiburg, what an amazing force these catapults possess.

A single catapult has an average weight of 0.15 mg. The rapidly flung fruit flies in our former experiments weigh 1.74 mg in average, which is about 12 times as much as one catapult. This result is quite amazing, but how efficient are these hydraulic powered tentacles really?

Due to the coronavirus lockdown, the publication with the exact individual weights needed to be shifted into a distant future. Therefore, we show only the framework data that are nonetheless completely sufficient to convincingly illustrate the force of the snap-tentacles.
Never fear! You do not need a chemistry book to understand this film.

Showing a bunch of beautiful sundew species and hybrids, we explain really briefly and clear why particular chemical ingredients of the sundews are not only interesting as cough medicine for homeopathy, but also as traits for taxonomy, in a manner as comprehensible for laypersons as possible.

The featured chemical analysis (TLC) is helpful for the description of novel species and gains an additional dimension by the fact that most true species produce only one naphthoquinone or none, while hybrids show the chemistry of both parents combined. That means, if the parents produce different quinones, the hybrid shows both of them and both parents as well as the hybrid can be distinguished chemically that way.

Here are the results of a survey on YouTube prior to this upload:

Particular chemical ingrediens of the sundews are helpful as traits for taxonomy; thus, chemical analysis makes it possible to recognize species and hybrids. Would such a film with clear descriptions be of interest: ?

Yes, if not too complicated I would like to see it: 85 %.

No, plant chemistry is not of interest to me: 0 %.

I do not know; however, would take a glimpse: 8 %.

Only if the film shows also beautiful plants: 8 %.
Vegetarische Karnivoren

Is it possible to grow your carnivorous plants with vegetarian diet? Our first film from the new “Siggi’s CP Info” series provides the answer. Carnivorous plants predominantly capture and digest arthropods like insects, spiders or little crustaceans. Some of the largest tropical pitcher plants are even known to eat real meat, mostly small vertebrates like mice or reptiles.

But what happens if you feed vegetarian food to the carnivores? Even Charles Darwin pointed out that in times of high pollen abundance the sticky traps of sundews and butterworts accumulate large amounts of pollen. Does that mean carnivorous plants are also happy with vegetarian food?

Here are the results of a survey on Facebook and YouTube prior to this upload: Is it possible to feed carnivorous plants with vegetarian food?

YES: 52%  -  NO: 36%  -  ONLY TEMPORARY: 12%
Tsunami 2004 Thumb

Early on Boxing Day, we experienced the 2004 Tsunami at Mount Lavinia, Sri Lanka. The day before, we had finished a very successful shooting for our film on Borneo Exotics, Robert Cantley’s famous special nursery for tropical pitcher plants. Only in the evening, we had returned from the highlands. After breakfast, it turned out to be a big stroke of luck that our hotel, recommended by Rob, was situated on a rock, several meters above sea level. Only for that reason nobody became injured there. Filmed from the balcony of our hotel room, our documentary shows with original comments how we experienced that force of nature.

Today, 2019-12-26, exactly 15 years passed by; therefore, Irmgard and I decided to show our shots also on our YouTube-channel.
newDionaea Traps Selectively Allow Small Animals to EscapeHD Zeichen
Venus flytraps and ants - Thumb GB

Our experiments show that Venus flytraps (Dionaea muscipula) selectively allow small animals to escape by a system of interlocking features that complement each other very efficiently. We documented ants of the species Lasius neglectus (length 3.5 mm) running continuously through open traps of Dionaea, established since more than 20 years outdoors in our garden.

During six days sampled observations (24 times ten minutes of exact counting) projected to four weeks resulted in about 15,000 trap visits by ants from which only six were captured, indicating a risk of capture of merely 0.04%. This makes it very likely that such an effective sorting out of small animals is based not on just one mechanism, but on a sophisticated system of several interlocking features, which we present with this film.

During four weeks (28 days), ten prey other than ants were captured, which were almost all considerably larger and thus more nutritious. In any case, their mostly nocturnal visits occured by orders of magnitude rarer than those by the ants. According to our examinations, Dionaea’s selective system that allows small animals to escape includes four interlocking features:

       1) Attraction of the ants away from the trigger hairs by alluring glands.

       2) Due to their size clear visibility of the trigger hairs to a small ant.

      3) The requirement of two stimuli for trigger trap closure combined with a memory
    fading after 20 seconds.

      4) The escape allowed for small animals by openings between the marginal bristles during         the slower phase of trap closure that follows the rapid snap of the trap.

This film is based on a publication in Carnivorous Plant Newsletter (CPN, Vol. 48/4 - September 2019 in print): Dionaea Traps Selectively Allow Small Animals to Escape.
By Siegfried R. H. Hartmeyer, Irmgard Hartmeyer and Emeritus Prof. Stephen E. Williams.

When filming sundew snap-tentacles, some simple measures can be helpful to prepare the recording correctly and to avoid disturbing shaking by unnecessary poking of the tentacle heads. That needs some understanding on their different response times and motion patterns. Since many years, we experimented with catapulting sundews and summarized our experiences now in this brief movie description, providing hints how to proceed with moderate and rapid catapult-flypaper traps. The idea for this fim came up after some requests on Facebook how to film such tentacle motions. Good luck when filming your Drosera.
newShort trailer on our 40th wedding anniversary HD Zeichen

40. Hochzeitstagtrailer

A short trailer on our 40th wedding anniversary for family and friends.
Therefore, this time no carnivorous plants.

Utricularia antennifera & quinquedentata Thumb

Near Beverley Springs (Australian Kimberley), we were able to film Utricularia antennifera in situ. The plants possess two antenna-like filaments at the otherwise inconspicuous flowers. According to Prof. W. Barthlott (University Bonn), that is probably a form of Mullerian mimicry: The flowers mimic a female insect to attract the male partners for pollination. Directly beside grows one of the smallest bladderworts. With a size of only two millimeters, the white flowers of U. quinquedentata are quite hard to find. We fished out these 1995 shots of rare Utricularia from our archive and remastered them for bladderwort enthusiasts.
Byblis&Lindernia: Motion&Enzyme Tests

A highlight for CP-enthusiasts! In 2018, first videos by Dr. Gregory Allan (GB) on Facebook showed an active motion of Byblis trichomes. However, the topic literature describes the carnivorous genus as immobile. To review that behavior, we made own time lapse shots with a microscope that turned out to be surprisingly even for ourselves.

They confirm clearly that the unicellular trichome stalks show an active motion down to the leaf surface after being touched by prey. Therefore, we looked up again the work of some CP pioneers like Charles Darwin (1875) or C.A. Fenner (1904), and included their findings and assumptions on Byblis complemented with excerpts from Dr. Gregory Allan's first shots (with his kind permission).

In addition, we examined the related Lindernia cleistandra (all Lamiales) that likewise occurs in tropical Australia and that is like Byblis densly covered with glandular trichomes. However, its state regarding carnivory is yet unclear. We complemented the time lapse shots with an enzyme test, which we used even in 2010 to detect digestive enzymes in Byblis filifolia. Well, just view this film and you will know more about these interesting plants.

We would like to express our thanks to Dr. Gregory Allan, Dr. Jan Schlauer as well as Holger und Anja Hennern
for their kind support during the making of this film.
Beutefang der Venus Fliegenfalle_THUMB

Repeatedly, large pitcher plants (Nepenthes) capture small rodents and digest them. Is that coincidence? How completely do plants utilize vertebrates? What remains? We examined that and present the answers with this film. Between 2007 and 2017, all five mice became captured without our involvement. Undesirably, the house and wood mice (Mus musculus & Apodemus sylvaticus) intruded into the greenhouse and fell into the passive traps that lured with nectar. To make the best of it, we observed what happened for several months. We took every effort to create the film in an entertaining fashion; however, sensitive souls should not necessarily view the pictures of digested prey during the meals.

Online article (2009, Hartmeyer I. & Hartmeyer S.): http://www.hartmeyer.de/ArtikelundBerichte/artTruncata_Maus2008_GB.html
Katapultierender Sonnentau D. glanduligera

The amazing prey capture of a catapulting sundew. Short and succinctly (75 ms) but sensational. We provide more than 120 thrilling videos on carnivorous plants on our YouTube channel. Simply subscribe to stay up to date.

The surprisingly rapid closure of the Venus flytrap is meanwhile well known. But what prey captures this according to Darwin "most wonderful plant in the world" in fact, comparing the cultivation in greenhouse and garden with the natural environment in North Carolina? How does it attract prey? Developed the snap traps really a strategy to capture preferably larger animals?

The answers to these questions provides our movie, based on a scientific paper released in 2017 in Carnivorous Plants Newsletter (CPN) by one of the veterans of the Droseraceae exploration, Emeritus Professor Stephen E. Williams, together with Siggi Hartmeyer, discuss the existing literature and conduct own experiments on the prey capture.

Untangling the Indian Sundew Muddle THUMB

Even in 1753, Linnaeus described the Indian Sundew (Drosera indica) officially. In our film, we are especially happy to show the herbal records that existed at that time with the kind permission by the Trustees of the Natural History Museum London (GBR) and the Naturalis Biodiversity Center in Leiden (NLD). Despite their different appearance, between 1753 to 2001 all spider leg sundews (Drosera section Arachnopus) occuring from Africa over Asia to Australia were identified as D. indica. Some early attempts to assign plants as separate species, such as by Planchon in 1848, failed because the distinguishing characteristics were not considered sufficient and/or reliable.

Eventually in 2017, we were able to examine also the micromorphology of the "real" D. indica and found emergences, which were obviously misinterpreted and/or ignored in the existing literature. Until today, the spider leg sundews are often confused and therefore incorrectly labeled in botanical gardens as well as private collections. With our film "Untangling the Indian Sundew Muddle" we hope to be helpful to assign D. indica correctly. We are very grateful for the kind support by taxonomy expert Dr. Jan Schlauer, for the provision of seeds from the "real" D. indica by Gideon Lim and the photos of D. barrettiorum by Holger & Anja Hennern.
Utricularia ochroleuca Thumb

From all carnivorous plants, the bladderworts (Utricularia) possess the fastest capture mechanism. Their suction traps swallow prey within up to less than the thousandth of a second (= millisecond: ms). The lobes of the waterwheel plant (Aldrovanda) close within 10 ms, the catapult-flypaper traps of the sundews (Drosera) fling prey within 75 ms, and only at the fourth place snap-shuts the famous Venus flytrap (Dionaea) within 100 ms. 

In this last part of our series Utricularia ID of Europe's bladderworts, we feature Germany's rarest species, the yellowishwhite bladderwort, U. ochroleuca. On-site narrated by Dr. Jan Schlauer, we feature the plants in full blossom in a successfully rewetted bog in Baden-Württemberg. At other sites, this sterile
hybrid, which is most likely a crossing of U. minor with U. intermedia, flowers rather rarely. In addition, we entcounter orchids (Dactylorhiza) as well as splendid specimens of the roundleaved (D. rotundifolia) and oblong-leaved sundew (D. intermedia).

Utricularia stygia & U. intermedia Thumb

Drosera aurantiaca possesses no petioles like for instance D. aquatica and D. finlaysoniana; however, it is easily to identify by its unique bright orange coloured flowers that appear like dusted with fine gold if viewed up closely. The micro-morphological examination showed that stem and trapping leaves are covered with dwarf stalked glands and double tipped caps of different size, which is typical for most spiderleg sundews. Besides, we find numerous mushroom-emergences with red heads. Some of them show two lateral excrescences that remind of an early developmental stage of the bulls-head emergences. However, here we never found bulls-heads in final shape, only this transitional form.

In 2017, we succeeded for the first time in cultivating and examining this pretty and in cultivation very rare species in our greenhouse. The video supplements our movie “The Realm of Emergences” with a further species that has been labelled D. indica until 2013. A contribution on the real D. indica, which could not be found in Australia until today is already in progress and will follow after the turn of the year.
Utricularia stygia & U. intermedia Thumb

Amazingly, Utricularia stygia, the dark yellow bladderwort, grows not only as an aquatic, but also terrestrial. Its earth-shoots wind in best health on the soil between other bog plants like our domestic sundews. We found it between D. anglica, D. rotundifolia and their natural hybrid D. anglica var. obovata (synonym D. x obovata) at the same site. However, we needed some time to find the infertile species in bloom. It is most likely a cross between U. intermedia and U. minor. U. stygia is often confused with U. intermedia, which possesses also pronounced earth-shoots. We were able to film also this fertile flat leave bladderwort; however, flowers occur so rarely that we needed to take the photos in this case from Dr. Jan Schlauer’s archive. Like in our further parts of the series “Utricularia ID”, Jan adds his comments directly at the growing site.

Utricularia ID: U. bremii & U. minor HD Zeichen
Drosera hartmeyerorum Thumb

The second part of our series “Utricularia ID” shows the likely rarest Bladderwort in Central Europe: Utricularia bremii. Not far from Lake Constance, we found the plants in gratifying conditions. However, it is an infertile hybrid, widespread up to Japan and easily confused with larger species of our smallest Bladderwort, U. minor. We show how to distinguish them and what’s up with their dimorphism. On common tours between Lake Constance, Swabian Alb and the Alps, Irmgard and I filmed both species accompanied by Dr. Jan Schlauer, who also annotates on-site on the film.
Drosera hartmeyerorum Thumb

Drosera nana is the smallest of the Australian Spiderleg-Sundews (Section Arachnopus). Even in 1995, when all species in this section were still designated as D. indica, Irmgard and I were able to film the tiny plant at Howard Springs near Darwin. Unfortunately, during recent examinations in our greenhouse (2017) the seeds did not germinate. Therefore, we have not been able to look for its emergences; however, a clear hairiness visible on our shots from 1995, seems to be similar to that of D. aquatica (true hairs, no emergences with xylem).

Hopefully, we’ll be more fortunate in the following season to be able to deliver detailed shots in addition. At the moment, D. nana looks like a dwarf form of D. aquatic to us.

Outlook: These days, we examine further Arachnopus species in our greenhouse, which delight us with quite surprising results. This includes also the at present as “true” D. indica assessed species from Asia, which could not be found yet in Australia. Our series “Sundew ID” remains interesting for Drosera friends and will be continued in a few weeks after a short break for the still pending film cut.

Utricularia ID: U. australis & U. vulgaris HD Zeichen
Utricularia ID Thumb

Within one thousandth of a second, the suction traps of our domestic Bladderworts (Utricularia) swallow prey animals like daphnia. In our film, this is featured with a high speed camera. The shots were kindly provided by Dr. Simon Poppinga from the Plant Biomechanics Group of the University Freiburg (Germany). Published: Poppinga et al. (2016) AoB PLANTS.

Our YouTube-series „Utricularia ID“, which starts with this film, will be continued with further descriptions of domestic species,  easy to understand also for interested laymen. Today, we begin with the two large and free floating species that – often confused - occur in Germany. The sterile hybrid U. australis and the fruit forming up to more than two meters long Common Bladderwort, U. vulgaris, are very similar; however,  those who know or have seen this film will nevertheless be able to distinguish them easily.

The recordings for this video series took place on several excursions in 2015/16 in the region between Lake Constance, Swabian Alb and the Alps. There, Irmgard and I were accompanied by Dr. Jan Schlauer, who’s local knowledge and professional expertise enabled this film and made it interesting also for specialists.

Sundew ID: Drosera barrettiorum HD Zeichen
Drosera hartmeyerorum Thumb

On a first glance, Drosera barrettiorum looks very much like D. hartmeyerorum. However, the typical pale yellow emergences at the leaf base and pedicel are very different. In their specialist lectures, Holger & Anja Hennern called them “ice-lolly emergences” due to their appearance. In 2008, the couple discovered the plant in Northern Australia and was the first who reported about it. Holger & Anja kindly provided their photo material for our project on the spider leg sundews (section Arachnopus). At this point, once again many thanks.
Sundew ID: Drosera hartmeyerorum HD Zeichen
Drosera hartmeyerorum Thumb

D. hartmeyerorum can easily be distinguished from other spider leg sundews (section Arachnopus) by its bright yellow light reflecting emergences at the leaf base and the bracts of the pedicel. Our experiments show that even a red laser pointer lets them light up yellow. Unique in the genus, the “lens-emergences” of this plant, discovered by us in 1995 in Australia, lead to the first splitting-off of a species from D. indica in 2001 by Dr. Jan Schlauer. In the beginning, the relevance of the very distinct emergences of the section was controversial; however, meanwhile about a dozen further species became split-off from D. indica, which frequently possess also typical emergences like for example D. barrettiorum.
Sundew ID: Drosera fragrans HD Zeichen
Drosera fragrans Thumb

Drosera fragrans smells like honey the same way as D. finlaysoniana “Honey Scent”; however, can easily be distinguished by its petioles. In the literature, the axillary buds that occur also in non-scented spider leg sundews (section Arachnopus) are referred to as scent emitting organs; which seems to be inaccurate. In the D. fragrans we examined, those axillary buds were even lacking. It is still unclear, whether the scent is emitted by the abundant double tipped caps (emergences) or simply by the stomata.
The Real Plant of Prey HD Zeichen

The Real Plant of Prey

This footage needs no narration. Thanks to its effective and rapid catapult-flypaper traps Drosera glanduligera is quite able to keep up with animal predators.
Sundew ID: Drosera cucullata HD Zeichen

Drosera cucullata Thumb

On a closer look, Drosera cucullata is something like the bird of paradise among the spiderleg sundews (Arachnopus species) and therefore easy to recognize. Amazing are its red emergences that resemble ant abdomens as well as its unusual flower.

Drosera aquatica Thumb

Drosera aquatica becomes often confused with D. finlaysoniana, which also shows no petioles. However, it can easily be distinguished by its typical hairiness. All plants that we found in 1995 near Darwin were settled with mutualistic bugs (Miridae).
Sundew ID: Drosera finlaysoniana HD Zeichen

Drosera finlaysoniana Thumb

Drosera finlaysoniana is often confused with D. serpens, or is even labelled with its previous name D. indica. We show, how to identify and to distinguish it easily from the other sundews in section Arachnopus. A magnifier as assistive tool is sufficient.
Sundew ID: Drosera serpens HD Zeichen

Drosera serpens Thumb

Drosera serpens
is likely the most wide spread spider leg sundew in tropical Australia and Asia. We show, how to identify and to distinguish it from the other species in Drosera section Arachnopus. A magnifier as assistive tool is sufficient.
Drosera glanduligera: Catapult Ontogeny HD Zeichen

Ontogenese_Drosera glanduligera

The catapult-flypaper trap of D. glanduligera is able to fling prey within 75 milliseconds into its sticky leaf center. Unique is not only its raised tentacle head that works like a foot trigger and its hinge zone that destroys itself due to the sudden release of high internal pressure during catapult action, but also its ontogeny with the development of the rapid catapults.

In the beginning, the seedlings develop straight glue traps without catapult function. Only this phylogenetically comparatively "old" species shows during the following 3-4 weeks a remarkable metamorphosis of the successively elongating marginal tentacles. With every new leaf, the tentacle heads change increasingly from glue producing glands through intermediate forms into the eglandular and dry catapult heads. Simultaneously, the typical hinge-zone for the hydraulically powered catapult movement develops in the basal third of the tentacle stalk.

Well, no matter how complicated that may sound: It is simply fun to observe the prey capture in these catapulting sundews!
The Realm of Emergences - Drosera section Arachnopus HD Zeichen

Ankündigung Im Reich der Emergenzen

This film shows the history and the currently most detailed description of the spider leg sundews (section Arachnopus) by their different emergences in an entertaining fashion. With D. hartmeyerorum, Dr. Jan Schlauer split the first species from D. indica for its unique morphology in 2001. Criticized by some experts at that time, today we can say with certainty that the plants in this section can actually be distinguished by their emergences, even if their function is often not known. Only the characteristics of the emergences of have been unequivocally proven. They function as optical lenses, which light up bright yellow even under a red laser beam. In D. cucullata we find structures that appear like ant abdomens and when the German couple Holger & Anja Hennern discovered a sundew with ice-lolly emergences in 2008, even the experts were amazed. These and further emergences that appear even more fascinating beneath the microscope help to identify the plants that have been distinguished from D. indica so far. Those who have seen this film should not have problems with naming the plants any more.
Drosera rotundifolia Tentacle-dimorphism HD Zeichen

Drosera rotundifolia Tentakel-Dimorphismus

The Round-leafed Sundew possesses usually straight glue-traps; however, develops temporary also mucus-free snap-tentacles. Even Charles Darwin (1875) reported that tentacles of Drosera rotundifolia are able to bend to the leaf-center in roughly ten seconds. If he measured glue or snap-tentacles has not been mentioned. When and under what conditions they appear has not yet been investigated.

There are different functioning snap-tentacles in the genus. With only 75 milliseconds for a 180° bending the Australian D. glanduligera is the champion. It belongs to the catapult-flypaper traps, which were described for the first time in 2012. Its capture movement is therefore faster than that of the Venus flytrap. These rapid catapults are not able to fix prey. The snap-tentacles of D. burmannii that we call a moderate catapult, bend in approximately ten seconds to the leaf-center. They are able to lift prey from the periphery of the plant onto the sticky lamina and to fix it effectively. Almost all basal rosettes occurring south of the distribution area of D. rotundifolia develop always snap-tentacles. To find out when and under what conditions they occur on the Round-leaved Sundew could certainly be a nice project even for hobby botanists.
Remark: All seedlings of the cold hardy northern sundews possess snap-tentacles in the beginning to capture springtails; however, they lose them during growth.  
Prey Capture in Milliseconds:
Europe's bladderworts between Lake Constance, Swabian Alb and the Alps.HD Zeichen

Utricularia vulgaris Thumb

Bladderworts (Utricularia) possess the fastest capture mechanism of all carnivorous plants. Ultrafast bladder traps suck in prey within less than a millisecond. That is 100 times faster than Venus’s flytrap snap shuts. Seven of the ten species that occur in Europe can be found in the region between Lake Constance, Swabian Alb and the Alps. Thanks to the support of the worldwide recognized CP-expert Dr. Jan Schlauer, we were able to film all seven Utricularia at their natural habitat. The terrific speed of prey captures show recordings with a high-speed camera, taken at the labs of the Plant Biomechanics Group of the Botanical Garden of the Albert-Ludwigs-Universität Freiburg (Germany). Dr. Simon Poppinga kindly provided these remarkable shots. In addition, a scanning electron microscope image featuring the quadrifid glands inside a bladder trap (both published in Poppinga et al. (2016). AoB PLANTS 8: plv140). As the film shows, their shape can be helpful for the determination of several quite similar looking species. Detailed information on our domestic bladderworts is provided by the scientific article “Die Gattung Utricularia in Bayern” (2014) published by the Bavarian Botanical Society, from which we quoted repeatedly in this film. To protect the partly endangered plants, but also because the access to some of the swamp areas without an experienced guide is not at all harmless, we do explicitly not mention exact locations.
How to grow a catapult-flypaper trap HD Zeichen

How to grow a CFT

An easy to understand description (English subtitles) how you can grow your own prey flinging catapult-flypaper trap (D. glanduligera). An excerpt from our movie "The Diva's Catapult":
Behaviour of T2- snap-tentacles
in moderate and rapid catapult-flypaper traps.
HD Zeichen


Demo-Trailer on catapulting tentacles in Drosera section
Bryastrum, Coelophylla and Thelocalyx.

Moderate catapult-flypaper traps like D. sessilifolia, D. burmannii or the larger pygmy Drosera possess T2-snap-tentacles that function repeatedly.  In contrast to the one-shot T3-snap-tentacles of D. glanduligera they show a much longer reaction time and the bending stops at approximately 90-120° if no prey has been captured and actuats further receptor potentials. This behaviour can be compared with the "narrowing" movement of Dionaea flaps.

This trailer shows reaction times (waiting may be boring for some people) and the different bending behavour of T2-snap-tentacles, which act in fractions of a second in some pygmy Drosera.
Schule trifft Wissenschaft (School meets Science).
Die Preisverleihung der Robert Bosch Stiftung 2009 in Berlin.
HD Zeichen

Schule trifft Wissenschaft

On behalf of Prof. Dr. Rainer Hedrich from the Julius-von-Sachs-Institute of the University Würzburg, we filmed the award ceremony of “Schule trifft Wissenschaft” (School meets science) conducted by the German Robert Bosch Stiftung (foundation) under the patronage of the former minister of education and research Prof. Dr. Annette Schawan, who sent a video message. Laudators were the co-inventor of the MP3-player Prof. Dr. Karlheinz Brandenburg for one 2nd prize, the German astronaut Prof. Dr. Ernst Messerschmid for the second 2nd price, and Nobel Prize winner Prof. Dr. Erwin Neher for the main prize. One of the 2nd prizes awarded the “Project Phytosensors”. The young researchers investigated (beside others) the sense of taste of the Venus flytrap. Before the event, Prof. Hedrich invited us to hold a lecture on rapid tentacle movement (snap-tentacles) for students and teachers of the Friedrich-König-Gymnasiums in the frame of that project. Our lecture is online on YouTube as playlist:  https://www.youtube.com/watch?v=4ocyt_EkR84&list=PLhZbrINQjLLNZ1xQcgcRiAj2rBSWjBoha.

Based on our technical papers on the Sundew family and many years of experience in filming, Prof. Hedrich asked us to document the award ceremony in Berlin on video including the editing and we received the copyright for this production. In the run-up, the students did only know that they are nominated; however, not that they actually awarded such a great prize. From ten Germany wide nominated projects received the main prize (€ 50,000,-): The Heidelberger Life-Sciences Lab am Deutschen Krebsforschungszentrum Heidelberg. Two 2nd prizes (each € 20'000) awarded: The „SaarLab und die Sieben-Labore-Tour“ at the Universität des Saarlandes and
„Phytosensorik“ at the Friedrich-Koenig-Gymnasium Würzburg

The „Project Phytosensors“ and the candidates of the Friedrich-König-Gymnasium are in our focus; however,  we show also the other winners and their prominent laudators. Presenter of the event was Germany’s famous TV-moderator Sven Voss. Please find further information on our website: http://www.hartmeyer.de/Schule_trifft_Wissen_1.html.
Symbiotic bugs living on carnivorous plants in tropical Australia HD Zeichen

Symbiotic bugs YouTube

Predatory mirid bugs form biological communities with different sticky carnivorous plants. Such a symbiosis with Roridula and Pameridea bugs was first described from South Africa by the German botanist Rudolf Marloth in 1902. About half a century later, Lloyd (1942) and China (1953) reported on Setocoris and Cyrtopeltis bugs living on Byblis gigantea and some Drosera near Perth (Southwest Australia). In 1995, Irmgard and I were very fortunate to film and publish four of such mutualisms for the first time on tropical Byblis and Drosera in Northern Australia. On three journeys, we spent more than six months in Australia to capture news on carnivorous plants on film and found luckily even a not described sundew. As a positive consequence, our movies and articles on the discoveries found the interest of acknowledged scientists, and led to an invitation to hold a video lecture at the National Science Museum in Tokyo, Japan. That was both, a great honor and a confirmation of the relevance of our work. This film contains excerpts from our original footage and comments; however, remastered (includes English subtitles) as a brief entertaining (HD) summary on the bug - carnivorous plant mutualisms in tropical Australia.
Laser fire on Drosera hartmeyerorum  HD Zeichen
ICPS World Conference Tokyo 2002

Our experiments suggest that the yellow emergences of Drosera hartmeyerorum act like a residual light amplifier, comparable to the eyes of crocodiles or cats when illuminated with a torch at night. The film provides our experiments with different light sources like halogen and red laser.

CAUTION: Laser beams are dangerous. Protect your eyes  when you conduct such tests, especially when you observe the laser through a magnifier.

REMARK: We received on YouTube, Facebook and e-mail the same question: What benefit has the plant from these emergences ? Well, the incident sunlight is white and the reflected light is (flickering due to movement in the wind) bright yellow. That is very attractive to insects, especially on a strong contrasting dark red background, which appears black to insects. Yellow flypapers are very effective and often used to trap flying pests in nurseries and on fruit trees. The dark red background appears black to insects because their visual ability is shifted to the short-waved range of the spectrum. They don't see red, but they are able to see UV patterns. Regarding these facts, the emergences, which developed from simple sticky tentacles, are perfectly designed to lure prey into the sticky plant center.
Introduction to the ICPS World Conference in Tokyo 2002.
Now including direct links to view the lectures.

HD Zeichen

ICPS World Conference Tokyo 2002

This new HD introduction to our documentary on the ICPS World Conference 2002 in Tokyo includes direct links to all featured lectures. Numerous prominent researchers on the wide field of carnivorous plants met here and fascinated the visitors with their talks. No matter if you are interessted in exciting field trips, the phylogeny of Droseraceae or genetic aspects, you will certainly find a fitting lecture.
Cephalotus follicularis in situ 1991
bilingual Englisch & Deutsch in
HD Zeichen

Cephalotus in situ 1991

Cephalotus follicularis in situ near Albany. A unique carnivorous pitcher plant, endemic to Western Australia, filmed in January 1991. We digitally remastered the former Super-VHS format, however, the film is almost 25 years old and HD-quality was a dream at that time. The special ambience of the "good old days" is featured in our video series "Hunting Veggies History - Oldies but Goldies". Further reminiscent CP-adventures will follow.
Catapults in Pygmyland / Katapulte im Zwergenland
bilingual Englisch & Deutsch in
HD Zeichen
Our article in CPN 44/4 (2015):
Several pygmy Sundew species possess catapult-flypaper traps with repetitive function, indicating a possible evolutionary change into aquatic snap traps similar to Aldrovanda. Siegfried R. H. Hartmeyer and Irmgard Hartmeyer (PDF)

Catapults in Pygmyland

Amazing results: Pygmy sundews capture minute prey like springtails with rapid catapult action. Our experiments for this film (English subtitles) show that Drosera glanduligera is not longer the only sundew with a catapult-flypaper trapping mechanism. Also the snap-tentacles of several pygmy Drosera act with the speed of a closing Venus flytrap and fling walking prey from the periphery of the plant onto its sticky leaf. Therefore they turn out to be actually comparable with the amazing Drosera glanduligera, however, their catapults are multifunctional and possess a mechanism to avoid unessential movement: Like the Venus Flytrap. Under our microscope we examined 22 Drosera and received surprising results.

Furthermore we were able to film many pygmy Drosera in situ on field trips with Allen Lowrie, Greg Bourke and Kirstie Wulf (1991 & 2001), providing these shots now for the first time on YouTube.

We are happy to introduce Gideon Lim from Malaysia, who showed the first video of the rapid snap-tentacles of D. pygmaea "New Zealand, all green" on the internet even in 2014.

In addition, we recommend a visit at "Andy Landgraf Makrofotografie" on Flickr: https://www.flickr.com/photos/128222815@N03/

Andy kindly provided some of his impressive macro-shots for our film, to feature some more minute prey and predators in "Pygmyland".
Fluorescent Pitcher Plants HD Zeichen

Fluorescent Pitcher Plants YouTube

Many carnivorous plants with pitfall traps show a bluish fluorescence under UV-light. In Sarracenia it is most likely the toxin of the Poison Hemlock: coniine. The fluorescent agent in Brocchinia and Nepenthes is unknown. Whatever relevant the effect is for successful prey capture, it is impressive to experience it in the greenhouse. Special thanks go to Richard Bayerl (Stuttgart, Germany), who provided his UV-lamp and participated personally in the experiments.

Das Taublatt Cover
In 2013, we published an article on the topic in

Das Taublatt (GFP) Heft 75: 33-44.
Leuchtende Karnivoren: Die Lumineszenz der Schierlingsbecher.
Siegfried R. H. Hartmeyer, Richard Bayerl und Irmgard Hartmeyer.
Feed me ! Füttere mich ! The catapult-flypaper trap will soon be on TV at "planet wissen".
bilingual English & German in
HD Zeichen

Feed me ! Füttere mich ! (Logo)

A sundew is kicking a fruit fly with one of its catapulting tentacles and makes it stumble into the catapult-trap of a neighbour plant. A mighty fine draft for this filmlet. The scientific publication of the catapult-flypaper trap in 2012 in PLOS ONE (http://dx.plos.org/10.1371/journal.pone.0045735) has been a botanical sensation. Also the technology writer Volker Arzt became aware of it and recommended our (until now unique) HD-shots to the editorial staff of the scientific broadcast "planet wissen".

The result: On September 11th our shots will be on air for the first time worldwide on the German TV stations SWR (1:15 pm) and ARD alpha (3 pm).

Amorphophallus konjak flower in time-lapse
bilingual English & German in HD Zeichen

Amorphophallus konjak in Zeitraffer

Our Amorphophallus konjak (two bulbs) developed recently two wonderful - but very stinky - flowers. The second one grew to an amazing height of 1.86 m (from ground to the tip of the tongue). We documented the growth with one photo per day and edited the result for this HD-video.

Amorphophallus konjak mit A. Günzschel

Visit of the "Weiler Zeitung", which printed an article on the flower. Reporter Mrs. Günzschel did bear the "fragrance" bravely ;-).  

To experience this amazing visual illusion, pause the film and place your favourite living plant beside your screen. Continue the film and - sitting close to your screen - look into the center of the spinning helix (takes 20 seconds). When the helix ends, look at your plant beside the screen (or without any plant look at the photo following the helix): you see everything rapidly growing! Be surprised !

WARNING: Don't view this if you tend to get dizzy or to feel sick! Also too much repetition may cause giddiness even for healthy persons.

Optische Täuschung mit Spirale
Rapid stigma movement in flowers of Proboscidea
bilingual English & German in
HD Zeichen
Rapid stigma movement ...

The stigma in flowers of Proboscidea is touch-sensitive. Triggered by visiting insects, the stigma lobes close within seconds. If no pollination took place they reopen after some minutes, ready for the next visit. After successful pollination the stigma remains closed and the typical "Devil's claws" develop.
Carnivorous Beauties in HD Part 2 HD Zeichen
Carnivorous Beauties Part 2

Another short slide-show from our CP-collection. This second part shows Catopsis, Utricularia, Proboscidea and Pinguicula, grown in our greenhouse and garden. Further photos will folow. Enjoy!
Carnivorous Beauties in HD HD Zeichen
Carnivorous Beauties in HD

A short slide-show with photos from our CP-collection. This first part shows members of the family Droseraceae (Aldrovanda, Dionaea and Drosera), Byblis filifolia and a selection of Nepenthes, grown in our greenhouse. A second part featuring also Pinguicula and Utricularia will follow. Enjoy!
Fleischfresser auf dem Blocksberg HD Zeichen
(German language)

Fleischfresser auf dem Blocksberg

In Goethe's "Faust" can be read, that witches meet on top of the legendary mountain "Brocken" (Germany, vernacular: Blocksberg) to sweep off the last snow before May. The area is now part of the National Park (NP) Harz, and also some species of carnivorous plants occur there. We received a filming permit by the NP authorities and we express our gratitude to Dr. Gunter Karste, who accompanied our film-tour into the secret mountain bogs.

The film starts in the climatic spa Benneckenstein, including a short retrospect on the history of the Hartmeyer family, who lived here until their family enterprise has been unlawfully dispossessed by the communistic authorities of the former German Democratic Republic (GDR - Remark: After the German reunification it became family property again.). The Hartmeyers escaped to the western part of Germany in the 1950s, but the contact with relatives and old friends remained constant in time.

A special thank goes to the Benneckenstein chronicler Jürgen Kohlrausch, who supported this film project from the beginning and who showed us some Drosera that grow not far away from Siggi's old native city in an area which is now called the "Green Belt". It sounds amazing, but where the former German zonal border existed with its strips of death and mine-fields, many endangered animal and plant species survived. Apart from urban sprawl and roadmaking, they found interestingly here a secure refugium.
Die Wasserfalle Aldrovanda in der Schweiz (German language)
Aldrovanda vesiculosa Schweiz

Also available in the English language.

Aldrovanda in Switzerland (English version)

EEE Leiden 2007

Die Europäische Karnivorenkonferenz (EEE) in Leiden 2007.
(German language)
EEE Bonn 2006

Die Europäische Karnivorenkonferenz (EEE) in Bonn 2006.
(German language)
Enzymtest deutsch

Enzymtest mit Fotofilm für Karnivoren.
(German language)
Guten Appetit_deutsch

Guten Appetit. Karnivoren auf Beutefang.
(German language)
 Auf Karnivorentour mit Stewart McPherson: The complete movie as Playlist in the German language

Heliamphora Playlist

Please scroll down for the English versions
Das Heliamphora Paradies (deutsch)

Auf Karnivorentour mit Stewart McPherson:

Das Heliamphora Paradies
(German language)
Heliamphora tatei (deutsch)

Auf Karnivorentour mit Stewart McPherson:

Heliamphora tatei
(German language)
Heliamphora am Kliff

Auf Karnivorentour mit Stewart McPherson:

Heliamphora am Kliff (German language)

Wei Tepui deutsch

Auf Karnivorentour mit Stewart McPherson:

Wei Tepui
(German language)
Gran Sabana & Ilu-Tramen Massiv (deutsch)

Auf Karnivorentour mit Stewart McPherson:

Gran Sabana und Ilu-Tramen Massiv (German language)
Aufstieg Mount Roraima (deutsch)

Auf Karnivorentour mit Stewart McPherson:

Aufstieg zum Mount Roraima.
(German language)
Der Auyan Tepui

Auf Karnivorentour mit Stewart McPherson:

Der Auyan Tepui
(German language)
Einführung in die Welt der Tepuis (deutsch)

Auf Karnivorentour mit Stewart McPherson:

Einführung in die Welt der Tepuis.
(German language)
Dionaea im Welcome-Trailer
Welcome at our YouTube-channel 
HD Zeichen

A short "welcome-trailer" featuring different CP-topics that we provide with our movies on YouTube and DVD/Blu-ray. We invite interested persons to subscribe to our channel.
The Aracamuni Adventure

On CP-Tour with Stewart McPherson: The Aracamuni Adventure
(English language)

Wide fields of large Brocchinia hechtioides cover the slopes of Cerro Aracamuni and beautiful flowering Utricularia compete with wonderful orchids. But suddenly, on the way to the famous Heliamphora tatei site, happened an accident with a machete. The hit leg of a crew member must be needled immediately without any doctor because the helicopter arrives not before two more days. Finally the guys are really tough enough to stand also this challenge, even though they were isolated in the wild.

With this episode the uploads from our DVD "On CP-Tour with Stewart McPherson" are complete. Therefore we provide - and recommend to view - these adventures now also in a playlist, containing all trips in the orginal order of the DVD (see below).
Drosera meristocaulis

On CP-Tour with Stewart McPherson: Featuring more rare carnivores. (English language)

This time Stewart McPherson takes a helicopter to show us the unusual Drosera meristocaulis, a sundew which grows in South America and turned out to be a close relative of the Australian pygmy-drosera. Different from first conclusions in the mid 2000s, meanwhile a dispersal of seeds by birds is discussed to be most likely for that odd appearance. Stewart McPherson also encounters a large scorpion (Brotheas species) and is able to film the beautiful Heliamphora neblinae in an amazing ambiance.

On CP-Tour with Stewart McPherson: Wei Tepui (English language)

Also available in the German language: http://www.youtube.com/watch?v=bgmmo7M2aIo.

This excerpt from our DVD "On CP-Tour with Stewart McPherson" continues our series of Tepui adventures in the English language. A helicopter takes Stewart from Yuruani to Wei Tepui, where he visits growing sites of Heliamphora glabra and Heliamphora nutans, showing also Utricularia quelchii and Drosera roraimae.

See also the playlist with Stewart's adventures below.

Catapult-Flypaper Trap: Prey Capture filmlet HD Zeichen
Katapult-Leimfalle Kurzfilm

This short film features the prey-catching by the catapult-flypaper-trap of Drosera glanduligera. Simon Poppinga from the Plant Biomechanics Group of the Botanic Garden of the University Freiburg (Head Prof. Dr. Thomas Speck) operated the high-speed camera and the scanning electron microscope. The HD-shots were made by Irmgard and myself on our living-room table, using our Sony Z5 camera. This digest shows explicitly the prey-catching of the catapult-flypaper-trap and was new edited for those, who like to see just the basal principles, and not the complete documentation on our examinations. Our collaboration with the Plant Biomechanics Group was published on September 26 2012 at PLOS ONE (see right side).
Das Katapult der Diva

The Catapult-Flypaper Trap
(The Diva's Catapult)
HD Zeichen

We show the first experimental evidence for the role of catapulting tentacles in prey capture of a carnivorous plant and introduce a new active trapping mechanism: The catapult-flypaper-trap. This video documents our (Irmgard and
Siegfried R. H. Hartmeyer) collaboration with the Plant Biomechanics Group of the Botanic Garden of the Albert-Ludwigs-University Freiburg (Germany) in 2012, providing all necessary information to handle the sophisticated cultivation of Drosera glanduligera and to understand how this unique sundew from southern Australia uses its amazing combined catapult-flypaper trapping mechanism. Prey animals walking near the edge of the sundew trigger a touch-sensitive snap-tentacle which swiftly catapults them upside down onto adjacent sticky glue-tentacles. By acting like a band-conveyor, the glue-tentacles lift the prey into the concave leaf-center within two minutes where digestion takes place, well protected from kleptoparasites. This is the first detailed documentation and analysis of the prey-catching, functional morphology, and kinematics of such catapulting tentacles. The result depicts a unique and surprisingly complex mechanical adaptation to carnivory.
This report is available on DVD and on Blu-ray (HD).

Sarracenia near Orlando

Carnivorous Plants near Orlando
HD Zeichen

To recover from our CP-trip to Alabama and Northern Florida with Brian Barnes, we return to Lake Mary, at the outskirts of Orlando. On visits at Brian's home, he shows us his wonderful CP-collection, containing i.e. the selfmade cultivars Drosera 'Ambrosia' and Drosera 'Dreamsickle" (hybrids of different D. filiformis forms), as well as some of the most beautiful Heliamphora that we have ever seen in cultivation. One evening Brian proofs to be a smokin' guitar player, performing a jam session with his friend Tony Tresca (bass) and his wife Cherry (drums), from which we included a short excerpt. Finally Brian guides us to the nearby Long Pine Preserve, to film the beautiful Sarracenia minor. Due to an unusual drought, many plants are suffering and we could not find Pinguicula lutea and Pinguicula caerulea anymore. Only one year ago Brian documented several of these, now simply dried up Butterworts. Such unusual droughts are in many parts of the world on the rise and probably caused by global warming, which therefore becomes an additional threat for the endangered genus Sarracenia.

CP of Northern Florida

Carnivorous Plants in Northern Florida
HD Zeichen

From Splinter Hill Bog in Alabama we head on south to Carrabelle in Florida and continue to film carnivorous plants. Our base is the recommendable snuggish little "Old Carrabelle Hotel". From here its just a daytrip to the famous growing-sites around Sumatra and Tate's Hell, where we are able to film i.e. the wonderful Sarracenia flava var. rubricorpora. This red form is seriously endangered by poaching and, as Brian reports, the number of plants is declining from year to year. Not far away we are able to film a site with large Pinguicula planifolia "giant". In Tate's hell we stumble across Drosera brevifolia and are shaken to the score to see the very sad results of heavy poaching with our own eyes. As Brian reports from his own observations, the beautiful pink form of Sarracenia leucophylla at Tate's Hell has been poached since years for use in the floral industries, and today only very small remnants survived, which will probably soon disappear from their natural habitat if the poaching does not end.
Splinter Hill Bog

Splinter Hill Bog Preserve
Sarracenia in Alabama HD Zeichen

In May 2011 we visit the Splinter Hill Bog Preserve in Alabama (USA) and stay for some days at the Nature Conservancy's Research house in the midst of the strictly protected and fenced area. Guided by Brian Barnes (ICPS Director of Conservation), we learn about the importance of prescribed fire for the rare plants and are able to film some of the last remaining larger remnants of Sarracenia leucophylla. Fascinated by a wonderful and rich nature we find even more species of Sarracenia, Drosera and also some beautiful orchids. Our complete adventures in Alabama and Florida are available on our bilingual DVD and Blu-ray (HD) "Sarracenia: Endangered Gems".


Camera Test: GardenWatchCam -

 Growth of Nepenthes in time lapse HD Zeichen

The weather resistant and simple to operate GardenWatchCam may be interesting for persons who like to make time lapse videos of their garden, particular growing plants or other long term events. We found this camera to be practical for filming under wet conditions, that we  face inside our tropical greenhouse, where any operating with expensive equipment is simply impossible. However, the picture quality is certainly below our HD Hunting Veggies standard, but may be sufficient to document your long term events. This video is just a first test run under the extreme conditions of our greenhouse, which the camera survived without problems. It shows the growth of several Nepenthes species during six weeks.
Triphyophyllum peltatum deutsch

Triphyophyllum peltatum

(German language)

Thanks to unique video shots from Sierra Leone by Stewart McPherson and photos from
a successful project at the University of Würzburg (Germany) by Dr. Jan Schlauer & Dr. Heiko Rischer, we are able to edit a film on the complete life cycle of this clandestine carnivorous plant. Please scroll up for the English version. 
Triple E trifft Triphyophyllum (DVD 2008)


Our complete lecture for the EEE in Mira 2008
(as Playlist) in the German language.
IncludingTriphyophyllum peltatum.
AG3 TC-Lab & Byblis

AG3 tissue culture lab and the new Byblis hybrid
HD Zeichen

On our USA trip 2011 we visit also the tissue culture (TC) lab of AG3 in Eustis, Florida. Beside VFT and Sarracenia they propagate also Byblis. A reason to take a glance at our self produced Byblis hybrid in Germany.
Schizandra Blues

The Schizandra-Blues
by Brian Barnes
HD Zeichen

During our 2011 USA-trip our guide and good friend Brian Barnes proved to be a real
smokin' guitar player. He performs his self composed Schizandra-Blues, together with his wife Cherri (drums), and Tony Tresca (bass).
BoGa Uni Basel 2004

The Festival of Plants at the Botanic Garden
of the University Basel (CH)

In 2004 we were invited to organize a special CP-show at the 'Festival of Plants' in Basel (Switzerland). Of course we filmed the event and we can recommend the arrangement for future CP-shows.
Film 60 auf YouTube

Jubilee! Our 60
th film on YouTube

A short retrospect on our CP-
projects of the last decade. Thank you very much to our audience, especially for many helpful comments and critics on our DVDs and uploads.

The Seychelles pitcher plant
Nepenthes pervillei REMASTERED

We remastered our movie from 1992 for YouTube. After an unsuccessful trial to find the pitcher plants on the top of Mont Pot à Eau on the island Silhouette, we can finally film N. pervilei, guided by Basil Beaudouin at the top of "Trois Frères" on the main island Mahé. Additional to our video, this footage contains great and new in-situ photos by the famous CPer Urs Zimmermann (CH).
Drosera regia TentakelDrosera glanduligera  
Part 1                           Part 2

Drosera tentacels

We show different Drosera tentacles, including the fastest sundew on earth: D glanduligera in 2 parts. The results of our comparative examinations on the genus received a great feedback from CP-enthusiasts world wide. This upload contains excerpts from our DVD "Triple E meets Triphyophyllum" and "Drosera: Snap-Tentacles and Runway-Lights".


Pulvinus Part 1
Part 1  
Pulvinus Part 2Part 2

Pulvinus and Movement in Byblis

In 2009, Brian Barnes published the surprising movement of leaves in Byblis. To confirm his observation, we filmed the phenomenon in time-lapse. The movement is caused by pulvini, cell-structures which are also known from other plant families like Mimosa and beans. Amazingly this has never been mentioned in literature before.
One day in Berlin

Berlin impressions 2009
HD Zeichen

A visit in Germany's capitol Berlin. We filmed with permission at the wonderful Zoo-Aquarium and visited
Robert Gieseler (chairman of the GFP Regional-Group Berlin) ... where his chameleon suddenly encounters an agressive T-Rex. No German language is necessary to understand this footage.


Auyán Tepui

Auyán Tepui

Ascent of Mount Roraima

Gran Sabana to Ilu-Tramen Massif

Wei Tepui Heliamphora glabra

Wei Tepui
English language
and also
German language.
Drosera meristocaulisMore rare Tepui-CP

Chimanta to Los Testigos

 Chimanta to Los Testigos

On CP-Tour with Stewart McPherson (English language)

We edited Stewart McPherson's tour videos to several Tepuis and provide our result in 6 parts. Experience breathtaking helicopter flights, pictures of unique landscapes and many endemic plants. Our movie shows all Heliamphora species described until 2010. Our thank goes to Stew, who kindly provided his videos for our DVD, which contains even more adventures.

ICPS World Conference Tokyo 2002

art 1 (new edit)

Part 2

Part 3

Part 4

Part 5

Part 6

Part 7

Part 8

Part 9

Part 10

Part 11

Part 12

Part 13

Part 14

Part 15

Part 16

Click on this text for the INDEX & BRIEF DESCRIPTIONS

The ICPS World Conference in Tokio 2002

In 2001 we received an invitation by Prof. Katsuhiko Kondo (Hiroshima) to join the ICPS World Conferenc in Tokyo (Japan) to give a lecture on our CP-tours in Australia, and to produce the official conference-video with our equipment. The 16 movies above provide most of the lectures of many prominent CP-experts, held at the event in 2002. Additional information can be found with our article "Die 4. Internationale Karnivorenkonferenz in Tokio" for "Das Taublatt", the journal of the German CPS "GFP"

NEW Button animiertView all lectures via plalist

Triphyophyllum peltatum

Triphyophyllum peltatum
(English language)

Thanks to unique video shots from Sierra Leone (Africa) by Stewart McPherson and photos from a successful examination at the university of Würzburg (Germany) by Dr. Jan Schlauer & Dr. Heiko Rischer we were able to edit this film featuring the complete life cycle of the clandestine growing carnivorous liana Triphyophyllum peltatum. The film is an excerpt from our DVD "Triple E meets Triphyophyllum".

Part 1

Part 2

Enjoy your meal Part 1 & 2

These uploads provides different entertaining and informative CP-topics, like Roridula hosting Pameridea bugs, our rodent eating N. truncata, a detailled instruction for the photo-film enzyme test, and even more. The movies are excerpts from our DVD "Triple E meets Triphyophyllum", produced for our lecture at the EEE 2008 in Mira (Italy).

The EEE in Bonn 2006

The EEE in Leiden 2007

The European CP Exchange and Exhibition (EEE)

Impressions from the much attended European Exchange and Exhibition (EEE) events in Bonn (Germany, 2006) and in Leiden (The Netherlands, 2007).

Sophisticated survival strategies

Sophisticated survival strategies
of the annual Drosera

The anual Drosera species develop the most sophisticated trapping mechanisms in the genus, to catch enough protein for a complete life-cycle within a single season.

Remark: This footage awarded a 2nd price in the ChloroFilms Plant Biology Contest in 2010. The contest is organised by the Pennsylvania State University and supported by YouTube.

Tissue culture

Lowland nurseries in Colombo

Highland nurseries Part 1
Highland nurseries Part 2

Highland nurseries
Part 2

Highland nurseries Part 3

Highland nurseries Part 4

A visit at Borneo Exotics in Sri Lanka

In 2004 we visited Robert Cantley's world famous Nepenthes nursery in Sri Lanka. The film shows the professional and environment-friendly propagation of the endangered pitcher plants at Robert Cantley's greenhouses. No plants are collected in nature, everything is produced with tissue culture, which is an important contribution to keep even such species world-wide alive in culture, which are seriously endangered in their natural habitat. We are happy to show unique pictures of wonderful and rare plants. On December 26 we experience the big 2004-tsunami without damage, because our hotel at the sea-side in Mount Lavinia was built on a 3-4 meters high rock, fortunately just high enough ...

The ant massacre

The ant massacre

In the early 1990s, ants start their mating flights through the floor of our  tropical greenhouse. That becomes a big meal for our pitcher plant hybrid Sarracenia x catesbaei. 

Aldrovanda in Switzerland

Sarracenia in Switzerland

CP in Switzerland

The well known Swiss teacher and author Ruedi Fürst (CH) guides us through bogs in Switzerland. We show growing sites with Aldrovanda vesiculosa and Sarracenia purpurea.

Northern Queensland Part 1
- Looking for a soundtrack

Northern Queensland Part 2
- Drosera and Utricularia in Cairns

Mount Bartle Frere
Northern Queensland Part 3
- D. schizandra at Mount Bartle Frere

New South Wales

New South Wales
- CP of the Blue Mountains

New South Wales
- Utricularia gibba
in Sydney

Queensland 1995
- Sarracenia: tropical dormancy

CP Adventures in Australia (1995 & 2001)

2001 we return to Australia for filming. Invited by Michael Gabour, owner of the Court House Hotel (Port Douglas), we are even able to record a wonderful Blues-soundtrack for our DVD. Thanks to Kirstie Wulf, Greg Bourke and Trevor Hannam we are able to provide numerous CP-sites and great adventures.


Triggerplants (Stylidium)

The rapid moving flowers of this mainly Western Australian genus are very interesting. Stylidium is growing frequently in the same habitats as CP.
Sarracenia alata

Sarracenia alata

Enjoy a field with beautiful pitcher plants near DeSoto (Mississippi, USA). We edited this movie from videos, taken by the famous author of CP-books, Stewart McPherson. The film was produced with hiskind permission.

Drosera glanduligera
- Flower opening

Drosera glanduligera
- Glue-tentacles time lapse

Drosera glanduligera
- Snap-tentacles real time

Drosera glanduligera
- Speed contest
(really amazing)


Lecture on snap-tentacles
- Part 1
(German language)

Lecture on snap-tentacles
- Part 2
(German language)

Lecture on snap-tentacles
- Part 3/1
(German language)

Lecture on snap-tentacles - Part 3/2
(German language)

Lecture on snap-tentacles
- Part 3/3
(German language)

Drosera snap-tentacles

In 2005. we published (DAS TAUBLATT) and documented the thrilling ability of Drosera glanduligera to retract its unique marginal tentacles in fractions of a second, which is about as rapid as the Venus Flytrap snap-shuts. In 2007 followed our movie "Drosera: Snap-Tentacles and Runway Lights", describing in detail also other, quite different tentacles in the genus Drosera (an upgraded article has been published in 2010 in Carnivorous Plant Newsletter).

We always aim to improve the quality and attractiveness of our CARNIVOROUS PLANT -YouTube Buttonchannel.
and TV performances
ChloroFilms Banner
Katapult-Leimfalle Kurzfilm
Short video featuring the catapult-flypaper trap D. glanduligera.
Foto TVtotal 2002 Pro7-TV
Siggi on Germany's most famous sofa with Stefan Raab.
CHLOROFILMS - Plant Biology Video Contest 2010.
We are happy about our 2nd price !
Our video „Sophisticated survival strategies of the annual Drosera“ awarded a 2nd prize in the ChloroFilms Plant Biology Video Contest. The film is an excerpt from our DVD “Drosera: Snap-Tentacles and Runway Lights” which has been shown at the ICPS conference 2006 in Frostburg (USA). ChloroFilms is a nonprofit project started by Dr. Daniel Cosgrove at the Pennsylvania State University with initial grant support from the Education Foundation of the American Society of Plant Biologists (ASPB). Additional support comes from the Botanical Society of America, and Penn State Institutes for Energy and the Environment, and the Canadian Botanical Association. The ChloroFilms Contest is also powered by YouTube. The goals of Chlorofilms are to encourage production of informative, creative, and entertaining videos that promote a greater appreciation and understanding of plant life.
Happy again:
In September 2012 our filmlet to accompany the PLOS ONE article Catapulting Tentacles in a Sticky Carnivorous Plant became Video of the week by the German science magazine Bild der Wissenschaft.
Siggi's performance at TV total (2002).

Comedy meets Carnivorous Plants. Germany's popular entertainer Stefan Raab questioned Siggi on "the personal sensitivities of carnivorous plants". A very special lesson with much room for a lot of laughter.

Further informationen: "The Hartmeyers on TV"
YouTube Creator Academy Bootcamp YouTube Creator Academy Certificate Zertifikat Creator Academy September 2015 YouTube Creator Academy October 2016
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Thank you very much for your interest and the multifold feedback.

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Unsere Filme auf YouTube (Übersicht mit Beschreibungen)

Our videos on YouTube
(Overview with depiction)
Unsere private Sammlung (Liste)

Our private CP-collection (listing)

Dionaea sort out small ants - Thumb
Dionaea sortiert gezielt kleine Ameisen aus.

Angebote Pflanzen
Utricularia 'Nüdlinger Flair'
Plant offers
Information über/on

Drosera glanduligera

Drosera hartmeyerorum

About us
Hartmeyer @

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Übersicht unserer
DVDs & Blu-rays

Overview of our
DVDs & Blu-rays
Die Katapult-Leimfalle
Katapult_Leimfalle Kinematik Farbe
The catapult-flypaper-trap
Artikel über/on Katapult-Leimfalle

@ CPN (2013)
@ Das Taublatt (2013)
Presseecho Katapult-Leimfalle

Press coverage
catapult-flypaper trap
Artikel über Karnivoren


Byblis hybrid
Nepenthes truncata
frisst Mäuse/eats mice
Sarracenia in
Alabama & Florida

Blu-ray (HD) & DVD
Byblis & Lindernia Thumb
Byblis hat doch aktive Tentakel, Lindernia nicht.

GFP e.V. GFP-Logo Forum GFP ICPS Logo & Link

Forum ICPS
Stewart McPherson

@ Redfern Natural History

Auf Karnivorentour mit ...
On CP-tour with
Stewart McPherson (DVD)
Camera: S. McPherson
Editing & Production:

I. & SRH Hartmeyer
Tsunami 2004 in Sri Lanka
Unsere Aufnahmen des 2004 Tsunami in Sri Lanka.