Geissorhiza nigromontana
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| Geissorhiza nigromontana | ||||||||||||
| Gold leaf |
Geissorhiza nigromontana is a plant from the family of the Iridaceae (Iridaceae).
description
They are 10 to 16 centimeters high, perennial, herbaceous plants . The tuber is rounded, asymmetrically flattened, has a diameter of around 6 millimeters and is completely concentric in several layers. The cover is light brown and is made of fragile paper.
The lower leaf is membranous and pale. The three to six sickle-shaped leaves are 3 to 6 millimeters wide, sword-shaped to lanceolate and barely more than a third as long as the stems or to the base of the ear . At least the lowest two leaves are basal, the upper, occasionally three to four, are smaller and attach to the stem, the uppermost often resemble bracts and are 4 to 10 millimeters wide.
The stem is prostrate in the lower part, upright above, simply or occasionally branched, in the latter case either from the base or the upper nodes of the stem, on the lower nodes there are brood buds . The inflorescence is a two- to three-flowered spike , the bracts are 8 to 10 millimeters long; green, but membranous on the upper part, the inner ones are slightly shorter than the outer ones. The flowers are star-shaped and blue-violet. The flower tube is 2 to 3 millimeters long, cylindrical and sunk into the bracts, the bracts are 14 to 16 millimeters long, around 6 millimeters wide and vice versa ovoid. The stamens are around 6 millimeters long, the anthers 5 millimeters long, and the pollen is yellow. The ovary is about 3 millimeters long, the stylus is divided at mid-height of the dust bag, the individual branches are 4 to 5 millimeters long and bent back.
Flowering time is from January to February.
distribution
Geissorhiza nigromontana is found in South Africa , it is endemic at an altitude of 1,800 meters on watercourses on the Blesberg , a mountain in the Great Swartberg Mountains .
Systematics
Geissorhiza nigromontana belongs to the Weihea section in the Weihea subgenus . The species epithet refers to the place where it was found ( nigromontana = Swartberg = "Schwarzberg"), where it was collected in 1981 and 1985.
proof
- Peter Goldblatt: Systematics of the Southern African Genus Geissorhiza (Iridaceae-Ixioideae). In: Annals of the Missouri Botanical Garden. Vol. 72, No. 2, 1985, pp. 277-447