Burmannia gracilis
| Burmannia gracilis | ||||||||||||
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| Burmannia gracilis | ||||||||||||
| Ridl. |
Burmannia gracilis is a non-leafy plant species fromthe Burmanniaceae family . It is native to Southeast Asia.
description
Burmannia gracilis is an annual, leaf-green, unbranched to branched herbaceous plant that reaches a height of 15 to 21, rarely 9 to 34 centimeters. It is mycotrophic . There is no rhizome, the roots are thickened and short. Leaves are absent at the base and only occur sporadically on the stem, where they are scale-like, triangularly tapering and 3 to 4.2 millimeters long.
The inflorescence is a double wrap consisting of mostly ten to twenty, rarely three to five flowers . The approximately 2 millimeters long stalked flowers are 7 to 9.5 millimeters long and white in color with yellow lobes. The flower tube is cylindrical and 4 to 5 millimeters long and 1.8 millimeters wide, the 1.8 to 2.3 millimeters wide wings are half elliptical to half wedge-shaped and run from the center of the base of the outer flower lobes to the base of the ovary. The outer lobes are broadly ovate to triangular, thin and flat or with slightly curled edges, tapering to a point and around 1.2 millimeters long, the inner ovoid to triangular, flat or with slightly curled edges, tapering to a point and around 0.7 millimeters long . The stamens are sessile and start in the flower pharynx close to the inner flower lobes, the connective is ypsilon-shaped and has two laterally diverging arms that carry the thecae and a short, blunt spur at the base. The stylus is as long as the corolla tube and thread-shaped, at its end are the three sessile, head-shaped scars .
The ovaries are approximately spherical and 3 to 4 millimeters long. The approximately spherical capsule opens irregularly along transverse slits. The seeds are numerous and elliptical.
distribution
Burmannia gracilis is native to the Thai and the Malaysian peninsula at altitudes between 800 and 1200 meters in evergreen forests on limestone.
Systematics
The species was first described by Henry Nicholas Ridley in 1890 .