Burmannia juncea
| Burmannia juncea | ||||||||||||
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| Burmannia juncea | ||||||||||||
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Burmannia juncea is a species ofthe Burmanniaceae family . It is native to Australia.
description
Burmannia juncea is an annual, leaf-green, unbranched to occasionally branched herbaceous plant that reaches a height of 15 to 26 centimeters. It is semi-mycotrophic . There is no rhizome and the roots are fibrous. The sheets are linear to lanceolate, 7.7 to 13 millimeters long and 1.2 to 2.2 millimeters wide. They stand as a down-to-earth rosette and occasionally close to the stem, where they are around 4 to 10 millimeters long and 1.2 to 1.5 millimeters wide.
The inflorescence is a double wrap consisting of a few to a dozen flowers . The almost sessile flowers are 7 to 11 millimeters long and yellowish with purple wings. The flower tube is cylindrical to three-angled and 2.5 to 3.5 millimeters long, the 1.7 to 3.3 millimeter wide wings are halved circular to halved inverted ovoid and run from below the ovary to the middle of the outer flower lobe. The outer lobes are broadly ovate, thin or with fleshy edges, upright and slightly bent back and 1 to 1.6 millimeters long, the inner ones are thin, upright, lanceolate to oblong-round lanceolate and 0.4 to 0.6 millimeters long. The stamens are sessile and start in the pharynx below the inner lobes, the connective has two short, lateral arms that carry the thecae . The stylus is thread-shaped and 2.5 to 3.5 millimeters long, at its end are the three almost sessile, trumpet-shaped scars .
The ovaries are inverted egg-shaped and 3 to 5.2 millimeters long. The inverted egg-shaped capsule opens along transverse slits. The seeds are numerous and elliptical.
distribution
Burmannia juncea is native to the north of Australia on sandy loam soils at the roadside, where it is found in association with screw trees , lobelia and nugget plants .
literature
- Dianxiang Zhang : Systematics of Burmannia L. (Burmanniaceae) in the Old World , pp. 211-213, 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.