Cnestidium
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Cnestidium is a plant kind from the family of connaraceae . It is found in Central and South America and includes only two species, both of which are lianas.
description
Cnestidium are lianas . Its leaves are pinnate unpaired, the inflorescence is a panicle . The heterodistyled flowers are hermaphroditic and five-fold.
The petals and stamens are bare, the stylus often hairy. There are five carpels , the fruits are unstalked follicles , which are covered with soft hair on the outside, the inside is bare, they open when ripe.
The seeds are individually attached to the base of the bellows and have a fleshy outer layer, the so-called sarcotesta , which covers the base of the seed. The endosperm is very little present, the cotyledons are thick, the radicula is pointed.
distribution
The genus is New World , which is rare in the family. The species are found in all of Central and parts of South America (Colombia, Venezuela, Guiana and Ecuador), but radiate as far as Mexico and Cuba.
Systematics
The genus was first described in 1850 by Jules Émile Planchon , its name refers to the similarity with the ancient genus Cnestis, which also belongs to the Connaraceae . Type species is Cnestidium rufescens Planch. Cnestidium is placed in the tribe Cnestidae of the family and includes two species:
- Cnestidium guianense G. Schellenb.
- Cnestidium rufescens Planch.
proof
- RHMJ Lemmens et al .: Connaraceae. In: Klaus Kubitzki (Ed.): The Families and Genera of Vascular Plants . Volume 6: Flowering Plants, Dicotyledons: Celastrales, Oxalidales, Rosales, Cornales, Ericales . Springer, Berlin / Heidelberg / New York 2004, ISBN 3-540-06512-1 , pp. 74–81 (English, limited preview in Google Book Search).
Individual evidence
Most of the information in this article has been taken from the sources given under references; the following sources are also cited: