Stylidium uliginosum
| Stylidium uliginosum | ||||||||||||
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| Stylidium uliginosum | ||||||||||||
| Sw. ex Willd. |
Stylidium uliginosum is a species of the shot plants ( Stylidium ) within the Stylidiaceae . It is one of the few species in the genus that can also be found outside of Australia. In addition to Queensland in northern Australia,its distribution areaalso includes northern Vietnam , Cambodia , Laos , southern China and Sri Lanka .
Like all species of the genus, it produces digestive enzymes in the trichomes underneath the flowers and is therefore assigned to the carnivorous plants .
features
Stylidium uliginosum is an annual herbaceous plant that reaches stature heights of about 5 to 15 centimeters. It has a small, basal rosette of leaves and one or more flower stems covered with glandular trichomes . The leaves are in whorls , are hairless and have a length of 4 to 7 and a width of 3 to 3.5 millimeters. They are inverted ovoid to almost round, that is, pointed at the base and rounded at the tip of the leaf.
The flowers are in terminal cymoiden rispigen inflorescences . The individual flowers sit on the flower stalk and reach a length of about 7 millimeters. The few, stalked, white flowers are small and zygomorphic . There are five bracts tepals , the two lower ones being elongated and fused to form a bilobed lip, and correspondingly many other floral organs. The column protrudes from the center of the flower and, when stretched, is curved behind the flower bracts. Like all shot plants, it has developed an unusual mechanism for the transfer of its pollen to pollinators by “striking” the pollinator with its gynostemium , a flower organ that arises from the growing together of the stamen and pistil .
literature
- Maliyasena D. Dassanayake (Ed.): A revised handbook to the flora of Ceylon. Volume 11: Aizoaceae, Cucurbitaceae, Eriocaulaceae, Euphorbiaceae, Goodeniaceae, Malvaceae, Myristicaceae, Orobanchaceae, Plumbaginaceae, Polygonaceae, Simaroubaceae, Stylidiaceae, Surianaceae. Balkema, Rotterdam et al. 1997, ISBN 90-5410-269-1 .
supporting documents
- ↑ Douglas W. Darnowski, DM Carroll, Bartosz Płachno, E. Kabanoff, E. Cinnamon: Evidence of Protocarnivory in Triggerplants (Stylidium spp .; Stylidiaceae). In: Plant Biology. Vol. 8, No. 6, 2006, ISSN 1435-8603 , pp. 805-812, doi : 10.1055 / s-2006-924472 .
- ↑ Douglas Darnowski, Stephen Moberly, Bartosz Plachno: Triggerplants (Stylidium spp .; Stylidiaceae): A Previously Unrecognized Genus of Carnivorous Plants. , Presentation, "Botany & Plant Biology 2007", 7. – 11. July 2007, Chicago, Illinois, Session Cp52, Number Cp52001, Abstract ID 18, ( Abstract )