Robinieae

Black locust (Robinia pseudoacacia)

Robinieae is a tribe in the subfamily of the Fabaceae ( Faboideae ) within the legume family ( Fabaceae ). Their types are originally native only in the New World.

  • 4.1 Notes and references

Description

Appearance and leaves

These are perennial herbaceous plants, shrubs or trees. Plant parts are sometimes glandular hairs ( trichomes ).

The alternate arranged leaves consist of petiole and leaf blade. The petiole is padded. The leaf blade is pinnate or unpaired. The leaflets are available on the rachis more or less opposite on opposite sides. You can narrow stipules present, sometimes they are converted to spines or they are missing. There are often stipules of leaflets available.

Inflorescences and flowers

Are formed pendant, individually or several standing in the leaf axils, usually hanging, racemose inflorescences. The membranous bracts are early lapses.

The hermaphrodite flowers are zygomorphic are fünfzählig double perianth ( perianth ). The five sepals are bell-shaped, sometimes fused two-lipped; of the calyx teeth fürn are two more or less severely overgrown. The corolla has the typical structure of the Fabaceae with five petals. The flag has at its base often appendage. The wings are not attached to the boat. Of the ten stamens is a free and all are fused together, but rarely form a closed tube. The anthers are all more or less the same. The only constant upper carpel usually contains several to many, often only two to an ovule.

Fruit and seeds

The woody to thin - leathery, bivalve legumes often contain only one, usually several to many seeds and are rarely septate between them. The seeds are broad ovoid or oblong and flat.

Dissemination

The original distribution area is located in the New World. Especially many species are native to Central and western South America.

System

The Tribe Robinieae in 1820 by Friedrich von Berchtold and Jan Svatopluk Presl in O přirozenosti rostlin aneb rostlinář: set up ..., p 229.

The Tribe Robinieae contains about eleven genera and about 70 species in the New World:

  • Coursetia DC. ( Syn: Benthamantha Alef, Callistylon Pittier, Chiovendaea Speg, Cracca Benth, Humboldtiella Harms, Neocracca Kuntze. .. ): With nearly 40 species.
  • Genistidium I.M.Johnst. With the only kind: Genistidium dumosum IMJohnst. Coming into Mexico in the states of Coahuila and Nuevo Leon and in the U.S. only in Texas before. This shrub is rare.
  • Lifting Stigma cubense ( Kunth ) Urb. Thrives in seasonal dry forests only in Cuba.
  • Sphinctospermum constrictum ( S.Watson ) Rose: It occurs in Arizona and Mexico.

Swell

  • Hang Sun & Bruce Bartholomew: Robinieae in the Flora of China, Volume 10, 2010, p 320: Online. (Section Description and systematics)
  • Robert Hegnauer: chemotaxonomy of plants, Volume XIB -2, Springer, 2001 ISBN 3-7643-5862-9. ( Robinieae: page 261-276 )
  • Matt Lavin, Martin F. Wojciechowski, Peter Gasson, Colin Hughes & Elizabeth Wheeler: Phylogeny of robinioid legumes ( Fabaceae ) revisited: Coursetia and Gliricidia recircumscribed, and a biogeographical appraisal of the caribbean endemics, In: Systematic Botany, Volume 28, No. 2, 2003, pp. 387-409.
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