©2021 Irmgard & Siegfried R. H. Hartmeyer - Last update 2021 December 14
Our movies are non-profit productions to promote the knowledge on CP in an entertaining and science-based fashion.
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|Carnivorous Plant Videos (152)
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Siggi at TV total
Mice trap Nepenthes (neu)
Mantis versus Sceliphron
Muscleman Catapult Trap
The Chemistry of Sundews
The Function of Snap-Tentacles
Drosera glanduligera Catapult-Ontogenesis
Prey Capture by the
Dionaea sort out
Catapulting Pygmy Drosera
residual light amplifiers
Fluorescent CP Traps
The European Bladderworts (Utricularia)
The Motion of
T2 Sundew Tentacles
N. truncata Eats Four Mice
Publication in "Das Taublatt"
EEE 2007 in Leiden (NL)
by Brian Barnes.
in Sri Lanka.
Publication in "Das Taublatt"
B. filifolia x B. liniflora
Publikation in CPN YouTube
Pulvinus and Movement
YouTube 1 YouTube 2
The Big 2004 Tsunami
in Sri Lanka
Cephalotus follicularis in situ
Carnivores on the "Blocksberg"
The Waterwheel Trap Aldrovanda in Switzerland
Enzym Test with Photo Film
On CP-tour with
Stewart McPherson (Playlist)
in Sierra Leone
at the Seychelles
Last upload 2021 December 13
Hartmeyer's Volcano Tour 1982
Our 152 videos on
A complete overview with brief descriptions.
Drosera glanduligera in Guinness World Records 2021
The fastest carnivorous plants show what they are able to do.
A very special competition.
The Realm of Emergences: Drosera Sektion Arachnopus
Untangling The Indian Sundew Muddle
On CP-tour with Stewart McPherson
Stew's trips to the Tepuis of Venezuela and their fascinating fauna and flora. A collaboration with the famous author of CP-books, who kindly provided us his raw film-footage for the editing and production of this documentary. We show all species of Heliamphora (described until 2010).DVD description
The English movie as playlist on YouTube
CP-books and more by Stewart McPherson
Drosera: Snap-tentacles and Runway Lights.
Our examinations on sundew tentacles from 1994 to 2010.
DVD YouTube Drosera glanduligera
Publication in CPN General view with microscope pictures
performance at TV total.
Click on the photo or text to view the broadcast on.
Comedy meets Carnivorous Plants.
Germany's popular entertainer Stefan Raab questioned Siggi on "the personal sensitivities of carnivorous plants".
A very special lesson. Here is much room for a lot of laughter.
More informationen at our page "The Hartmeyers on TV".
CP-Special Show at a Trade Fair in Lörrach (Germany). 1998 - 1999 - 2010 - 2014
English Translation of
"Von Benneckenstein in die Welt der Fleischfresser":
From Benneckenstein to
the world of carnivores.
An Interview by journalist Jürgen Kohlrausch with Siggi Hartmeyer. Published in the
Neue Wernigeröder Zeitung.
! Here multimedia
with active links !
Catapulted into Guinness World Records 2021.
Online: Article in the Oberbadischen Zeitung, Markgräfler Tageblatt and Weiler Zeitung on the entry of the catapult-flypaper trap Drosera glanduligera in
Guinness World Records 2021.
(topic list with photos)
plants & seeds
The "Predator Sundew"
A minute that's worth it.
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.
The article about the film
Siegfried R. H. Hartmeyer and Irmgard Hartmeyer (2015). Carnivorous Plant Newsletter Vol. 44/4:172-184.
An invasive spider.
In 2009 we upgraded our documentary on snap-tentacles for a CP-project at the University Würzburg. This has been uploaded to YouTube in the German language (click on pictures).
Award of the Robert Bosch Stiftung: for a Dionaea project in Berlin.
"Gezeitenwechsel im Hochharz"
a book by Christa Hartmeyer
The catapultflypaper trap
in the public
The amazing catapulting of prey by the catapult-flypaper trap was our key-issue at the Regio-Messe Lörrach (trade fair) 2014. In September the famous technology writer Volker Arzt presented it for the first time on TV (Planet Wissen, ARD).
The amazing "prey flinging" of a catapult-flypaper trap was for the first time presented to a wide public in the "CP-Cinema" at the Regio Messe
Byblis is motile
... and Lindernia?
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.
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