Burmannia wallichii
| Burmannia wallichii | ||||||||||||
|---|---|---|---|---|---|---|---|---|---|---|---|---|
Burmannia wallichii in Hong Kong |
||||||||||||
| Systematics | ||||||||||||
|
||||||||||||
| Scientific name | ||||||||||||
| Burmannia wallichii | ||||||||||||
| ( Miers ) Hook.f. |
Burmannia wallichii is a species ofthe Burmanniaceae family . It is native to Asia from Burma to Thailand and Vietnam to China.
description
Burmannia wallichii is an annual, leaf-green, continuously pale purple, slender herbaceous plant that reaches a height of 4 to 11.5 centimeters at flowering time. It is mycotrophic . There is no rhizome, the roots are fibrous or thickened and short. The leaves are 1.4 to 3.5 millimeters long, are absent at the base and only occur occasionally on the stem, where they are scale-like, triangular awl-shaped, tapering to a point at the extreme end and tightly fitting.
The inflorescence usually consists of a single, rarely two or three flowers . The sessile flowers are 5.5 to 10 millimeters long and from pale purple to bluish in color. The flower tube is cylindrical and 2.5 to 5.5 millimeters long, the narrow wings are halved elliptical or reduced to a rib and run from the middle of the flower lobes to below the base of the ovary . The outer lobes are ovate-triangular or blunt and around 1 millimeter long, the inner lobes are circular and small. The stamens are sessile, the connective lacks side arms, and the very short downward-pointing spur may also be missing. The stylus is 2.5 to 5.5 millimeters long and slender, at its end are the three almost sessile scars .
The ovaries are elliptical to approximately spherical and 1.5 to 3 millimeters long. The capsule opens along transverse slits. The seeds are numerous, yellow and elliptical.
The number of chromosomes is n = 16.
Distribution and ecology
Burmannia wallichii is native to Asia from India, Thailand, Malaysia, Myanmar, Cambodia, Vietnam to China at altitudes between sea level and 700 meters. It is common and can be found on fallen leaves in dense forests, mostly near running waters, often associated with bamboo species. Burmannia wallichii is self-pollinating.
Systematics
The species was first described as Gonianthes wallichii by John Miers in 1841 and placed in Burmannia by Joseph Dalton Hooker in 1888 .
proof
Footnotes directly after a statement confirm this individual statement, footnotes directly after a punctuation mark the entire preceding sentence. Footnotes after a space refer to the entire preceding text.
- ↑ a b c d e f Dianxiang Zhang: Systematics of Burmannia L. (Burmanniaceae) in the Old World , pp. 263–265, in: Hong Kong University Theses Online, Thesis (Ph.D.), University of Hong Kong, 1999
- ↑ Rafaël Govaerts (ed.): Burmannia - World Checklist of Selected Plant Families of the Royal Botanic Gardens, Kew. Last accessed on June 24, 2018.