Licania calvescens
| Licania calvescens | ||||||||||||
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| Licania calvescens | ||||||||||||
| Cuatrec. |
Licania calvescens is a tree in the genus Licania within the golden plum family(Chrysobalanaceae). The species has hardly been researched and only grows in the southern rainforests of the Colombian Pacific coast .
description
Licania calvescens is a large deciduous tree . While older branches are bare, young branches are still hairy. The leathery leaves are oblong-round to oblong-round lanceolate , between 6 and 10.5 inches long and 2.3 to 3.8 inches wide. The base of the leaf is wedge-shaped. While the underside is hairy rust brown, the top is bald. The midrib is very pronounced on the top and hairy towards the base. In contrast, the ten to eleven side ribs of the leaf are strongly pronounced on the underside and slightly protruding on the upper side. At the end, the leaf tapers to a point and has a 7 to 17 millimeter long tip. The hairy petiole measures between 3 and 5 millimeters and is flattened. Unlike the leaf blade , the petiole is glandless.
The inflorescence is a terminal panicle . Branches and rachis are hairy downy. The stipules are obsolete. The 0.5 to 1.5 millimeter long bracts and bracts are broadly ovate and minimally serrated to entire. The approximately 2 millimeters large, sessile flowers sit on the primary and secondary branches of the inflorescence . The bell-shaped flower base is sessile. It is felty on the inside and downy hairy on the outside. The pointed calyx lobes, however, are hairy on both sides. Petals are missing. The approximately 22 stamens are arranged in a circle, the stamens are slightly fused at the base. Both the inserted on the base of the flower ovary and the stylus are hairy felted at the bottom. The fruit of the tree is not known.
distribution
So far, the species has only been found four times in the Pacific coastal forests of Colombia in the provinces of Valle del Cauca (around Buenaventura ) and Chocó (between Quibdó and Tutunendó ). The first finds come from altitudes between 5 and 80 meters.
Systematics and botanical history
Licania calvescens was picked up twice by José Cuatrecasas in 1944 and first described by him in 1950 . Their exact position within the genus is still unclear due to their rarity. The type epithet (dt. "Becoming bald") refers to the bare branches.
Individual evidence
- ↑ a b c Ghillean T. Prance: Flora Neotropica Vol. 009: Supplement: Chrysobalanaceae , 1989, pp. 74-75
- ^ Ghillean T. Prance: Chrysobalanaceae In: Rodrigo Bernal, Enrique Forero (ed.): Flora de Colombia , Vol. 19, 2001, p. 136
- ↑ Jose Cuatrecasas: Contributions To The Flora Of South America - Studies On Andean Compositae I - Studies In South American Plants II In: Fieldiana: Botany, Vol. 27: 1, p. 64, 1950, PDF Online
- ↑ Helmut Genaust: Etymological dictionary of botanical plant names. 3rd, completely revised and expanded edition. Birkhäuser, Basel / Boston / Berlin 1996, ISBN 3-7643-2390-6 (reprint ISBN 3-937872-16-7 ).