David Pike demonstrating mechanism in trigger plants (Stylidium) pollination
Автор: Freethinker M
Загружено: 2015-05-28
Просмотров: 6969
Описание:
David Pike from Wildflower Society explains how trigger plant works.
This is filmed in Macro setting, at 12 second which is in focus, one can freeze the frame and appreciate the anatomy of the flower.
Stylidium (also known as triggerplants or trigger plants) is a genus of dicotyledonous plants that belong to the family Stylidiaceae. The genus name Stylidium is derived from the Greek στύλος or stylos (column or pillar), which refers to the distinctive reproductive structure that its flowers possess. Pollination is achieved through the use of the sensitive "trigger", which comprises the male and female reproductive organs fused into a floral column that snaps forward quickly in response to touch, harmlessly covering the insect in pollen. Most of the approximately 300 species are only found in Australia, making it the fifth largest genus in that country. Triggerplants are considered to be protocarnivorous or carnivorous because the glandular trichomes that cover the scape and flower can trap, kill, and digest small insects with protease enzymes produced by the plant.
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