Burmannia luteoalba
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| Burmannia luteoalba | ||||||||||||
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Burmannia luteoalba is aspecies of plant fromthe Burmanniaceae family nativeto Cambodia .
description
Burmannia luteoalba is an annual, leaf-green, unbranched to seldom branched herbaceous plant that reaches a height of 12 to 25 centimeters. It is semi-mycotrophic . There is no rhizome , the roots fibrous and short. The leaves are linear to lanceolate in the rosette, pointed, three-veined, 8 to 10 millimeters long and 1 to 2.2 millimeters wide. They stand as a down-to-earth rosette, the flat stem leaves are around 4 millimeters long and 1.5 millimeters wide.
Flowering time is September. The inflorescence is a terminal double wrap consisting of two to six flowers . The almost sessile flowers are 6.3 to 10.6 millimeters long and greenish white with yellow, 3.5 to 4.5 millimeter long lobes. The flower tube is cylindrical to three-angled and 3 to 3.5 millimeters long, the 2 to 2.4 millimeter wide wings are halved elliptical to halved inverted egg-shaped and run from below the ovary to the middle of the outer flower lobe. The outer lobes are upright, ovate to triangular, fleshy, thickened, slightly rolled up at the edge and 1.2 to 1.5 millimeters long, the inner ones are thin, upright, inverted-lanceolate to spatulate with a blunt end and 0.7 millimeters long. The stamens are sessile and start in the pharynx, the connective has two short, lateral arms that carry the thecae . The stylus is thickened, thread-like and, together with the scars, is as long as the flower tube, at its end are the three almost sessile, trumpet-shaped scars .
The ovaries are elliptical to inverted egg-shaped and 2.7 to 3.5 millimeters long. The inverted egg-shaped capsule opens along irregular transverse slits. The seeds are elliptical and yellow.
distribution
Burmannia luteoalba occurs only in Cambodia and Vietnam, information on the habitat is missing.
Systematics
The species was first described in 1907 by François Gagnepain .
literature
- Dianxiang Zhang : Systematics of Burmannia L. (Burmanniaceae) in the Old World , pp. 208-209, in: Hong Kong University Theses Online, Thesis (Ph.D.), University of Hong Kong, 1999.
Individual evidence
- ↑ Rafaël Govaerts (ed.): Burmannia - World Checklist of Selected Plant Families of the Royal Botanic Gardens, Kew. Last accessed on June 23, 2018.