Trigoniaceae

The Trigoniaceae are a family in the order of Malpighienartigen ( Malpighiales ) within the angiosperms ( Magnoliopsida ). You have a disjoint area: Madagascar, Malay Archipelago, Central and tropical South America.

Description

It is evergreen, woody plants: trees, shrubs or lianas. The leaves are usually arranged opposite, alternate with Trigoniastrum. The stalked leaves are simple with smooth leaf margin and are very hairy hand. There are Stipules present.

The zymösen, racemose or paniculate inflorescences are terminal or axillary. There are bracts present. The hermaphrodite flowers are strongly zygomorphic and fünfzählig with double perianth. The flowers look butterfly flowers similar but have a fundamentally different structure. The five sepals are fused. There are three or five free petals present. There are five to twelve deformed at their stamens stamens present, of which five to eight fertile. Most three, rarely four, carpels are fused into a superior ovaries. In each flower there is a pen, usually with capitate stigma. It is a discus available. Pollination is by insects ( entomophily ).

There are usually fruit capsules, or Humbertiodendron and Trigoniastrum three-winged Samara (wing nut), formed. The seeds are provided in some taxa with long hair. The spread of seeds carried by the wind or water.

System

These taxa were classified in the earlier order Polygalales. The Trigoniaceae are closely related to the Dichapetalaceae. The Trigoniaceae family was erected in 1841 by Stephan Ladislaus finite ( The more often also cited publication by Adrien Henri Laurent de Jussieu in Dictionnaire Universal d' Histoire Naturelle, 12, S. 670 is from 1849). Type genus is Trigonia Aubl. There are five genera with about 28 to 35 species:

  • Humbertiodendron Leandri, with only one type: Humbertiodendron saboureaui Leandri: The home is Madagascar.
  • Isidodendron tripterocarpum Fern.Alonso, Pérez -Z. & Idárraga: This species is native to the Columbia. With racemose inflorescence.
  • Trigoniastrum hypoleucum Miq. ( Syn: Isopteris penangiana Wallich ex Benn. ); ss are trees with two lines arranged leaves and a three-lobed stigma. The fruit breaks into three Samara. The home is the Indonesian archipelago.
  • Trigoniodendron spiritusanctense E.F.Guim. & Miguel; it is found only in Brazil.

Swell

  • The Trigoniaceae in APWebsite family. (English )
  • The Trigoniaceae at DELTA family.
Rosids Disjunct distribution Central America Ovary (botany) Agricultural Research Service
783929
de