Utricularia livida
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Utricularia livida |
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| E. Mey. |
Utricularia livida is a carnivorous plant from the genus of the water tubes in the section Calpidisca .
description
Utricularia livida is an herbaceous plant . Their rhizoids and stolons usually appear in large numbers on the scapus . Foliage leaves are not always present or noticeably visible. On the scapus they are arranged in a rosette , and they are scattered across the stolons. The leaf shape is linear to oval-spatulate, rarely kidney-shaped. Their length is 1 to 7 cm, their width 1 to 6 mm. The traps are numerous, egg-shaped, 1 to 2 mm long and stalked. Its opening is always closed, the upper lip doubles the lower one. Both lips are surrounded by rows of glandular hairs pointing in a star shape.
The inflorescence is erect, straight or curved and branched simply or further up. Its length is 2 to 80 cm, the shaft is glandular or smooth. The flowers appear singly, in pairs up to eight or even fifty on the inflorescence. They sit at a distance from one another, rarely crowded together. The scales are few and similar to the bracts ; the bracts have grown together at the lower end, oval, tapering or pointed and about 1 mm long. The sepals are irregular, oval and 2 to 3 mm long. The corolla is purple, mauve or white with a yellow spot on the palate; in rare cases, the entire crown is yellow or cream in color. The corolla reaches a length of 5 to 15 mm. The upper lip is one and a half to twice as long as the sepals and narrow-elongated, its tip is rounded or truncated. The lower lip is circular, the palate has two folds that run transversely like cusps. The flower spur is one and a half times as long as the lower lip, bulbous-conical and straight or curved. The seed capsule is spherical and about 2 mm long. The seeds are few to numerous and 0.3 to 0.5 mm long, egg-shaped and slightly angular. Their surface is smooth or barely noticeable to clearly pimply.
Distribution and habitat
Utricularia livida is native to Africa ( Ethiopia , Kenya , Malawi , Zimbabwe , Mozambique , Rwanda , Tanzania , Uganda , Zambia , Somalia , Sudan , Democratic Republic of the Congo , South Africa ) as well as Madagascar , but also in Mexico . It lives in wet places such as bogs and moss-covered rocks.
Systematics and botanical history
Utricularia livida is assigned to the Calpidisca section . It was first described by the German botanist Ernst Heinrich Friedrich Meyer around 1837 . The type epithet livida means "bluish". With Utricularia sandersonii is Utricularia livida directly related.
literature
- GI Cowan: Biota of South African wetlands in relation to the Ramsar Convention. Wetlands Conservation Program - Department of Environmental Affairs and Tourism 1999, ISBN 0-621-29461-6 , p. 22.
- Peter D'Amato: The savage garden. Cultivating carnivorous plants. Ten Speed Press, Berkeley CA 1998, ISBN 0-89815-915-6 , pp. 40-46.
- Ib Friis, Kaj Vollesen: Flora of the Sudan-Uganda border area East of the Nile. Volume 2: Catalog of vascular plants. Part 2: Vegetation and phytogeography (= Biologiske skrifter. 51, 2). Munksgaard, Copenhagen 2005, ISBN 87-7304-318-4 , p. 431.
Individual evidence
- ^ Peter Taylor: Lentibulariaceae. In: Roger M. Polhill (Ed.): Flora of Tropical East Africa. Balkema ua, Rotterdam ua 1973, ISBN 0-85592-025-4 ( Online ( page no longer available , search in web archives ) Info: The link was automatically marked as defective. Please check the link according to the instructions and then remove this notice. ) .
- ↑ Helmut Genaust: Etymological dictionary of botanical plant names. 3rd, completely revised and expanded edition. Birkhäuser, Basel et al. 1996, ISBN 3-7643-2390-6 .
