Burmannia subcoelestis
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| Burmannia subcoelestis | ||||||||||||
| Gagnep. |
Burmannia subcoelestis is a species ofthe Burmanniaceae family .
description
Burmannia subcoelestis is an annual, leaf-green, unbranched to rarely branched herbaceous plant that reaches a height of 29 to 35 centimeters. It is semi-mycotrophic . The rhizome is absent and present, the roots fibrous and short. The leaves are linear to lanceolate in the rosette, pointed, three-veined, 8 to 20 millimeters long and 2 to 2.5 millimeters wide. They stand as a down-to-earth rosette, the flat stem leaves are 8 to 18 millimeters long and around 2.5 millimeters wide.
The inflorescence is a terminal double wrap consisting of two to eight flowers . The short-stalked or almost sessile flowers are 10 to 13 millimeters long. The flower tube is cylindrical to three-angled and 6 to 7.3 millimeters long, the 2 to 2.4 millimeter wide wings are halved elliptical and run from below the ovary to the middle of the outer flower lobe. The outer lobes are erect, ovate to triangular, fleshy and thickened at the edge and 1.8 to 2.2 millimeters long, the inner lobes thin, upright, inverted-lanceolate to spatulate and 0.8 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 2.8 to 4 millimeters long. The inverted egg-shaped capsule opens along irregular transverse slits. The seeds are elliptical and yellow.
distribution
Burmannia subcoelestis is native to Cambodia, Laos 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. 207-208, 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 24, 2018.