Heterophragma
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Heterophragma is a plant genus that the family of Bignoniaceae belongs (Bignoniaceae). The two species belonging to itare native to India and Southeast Asia .
description
Heterophragma species are trees with hairy trunks . The leaves stand whorled and are pinnate with three or four pairs of pinnate leaves. The upper side of the leaf is hairy with adjacent, star-shaped trichomes .
The inflorescences are terminal thyrses , which are hairy tomentose. The calyx is tubular and irregularly lobed. The crown is also tubular, straight, creamy white to pale yellow and covered with corolla lobes of almost the same length. The four stamens do not protrude beyond the crown, the anthers are hairless and consist of straight counters. A single staminodium is formed next to the stamens . The ovary is elliptical, hairless and contains many ovules per ovary chamber.
The fruits are almost cylindrical capsules with woody valves. The calyx is not permanent on the fruit. The seeds are broad and winged translucently.
distribution
The two species of the genus Heterophragma occur in India and Southeast Asia .
Systematics
Two types are distinguished within the genus:
- Heterophragma quadriloculare (Roxb.) K.Schum. : It occurs in India and Bangladesh.
- Heterophragma sulfureum In short : It occurs in Myanmar, Thailand, Laos and Cambodia.
literature
- E. Fischer, I. Theisen and LG Lohmann: Bignoniaceae . In: Klaus Kubitzki, Joachim W. Kadereit (eds.): Flowering Plants, Dicotyledons: Lamiales (except Acanthaceae Including Avicenniaceae) , Springer Verlag, 2004. ISBN 978-3-5404059-3-1 . P. 18.
Individual evidence
- ↑ a b Rafaël Govaerts (Ed.): Heterophragma - data sheet at World Checklist of Selected Plant Families of the Board of Trustees of the Royal Botanic Gardens, Kew. Last accessed on March 2, 2015.