Stalkya muscicola
| Stalkya muscicola | ||||||||||||
|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Systematics | ||||||||||||
|
||||||||||||
| Scientific name of the genus | ||||||||||||
| Stalkya | ||||||||||||
| Garay | ||||||||||||
| Scientific name of the species | ||||||||||||
| Stalkya muscicola | ||||||||||||
| ( Garay & Dunst. ) Garay |
The orchid Stalkya muscicola grows as an epiphyte in moss cushions on branches and on tree trunks. It occurs only at higher altitudes in Venezuela .
description
Stalkya muscicola only forms a single root . This is hairy and thickened in an oval bulbous shape. The leaves form a basal rosette. They are light green, the blade is narrowly oval in shape, at the front it ends pointedly, at the base it ends in a thin leaf stalk. Most of the leaves are withered by the time they bloom.
The racemose inflorescence is hairy in the upper area. It is partially covered by tubular, hairless, pointed bracts . The hairless bracts are oval and pointed. The ovary is sessile, cylindrical to spindle-shaped, slightly twisted and pointing diagonally upwards. The few, loosely and almost one-sided arranged flowers are small, their color is greenish. The flowers are tubular and stand horizontally or slightly upwards. The sepals are shaped pretty much the same, they are roughly parallel to each other and thus form a tube. The dorsal sepal is concave and ends pointed, the lateral sepals as well as the petals are slightly asymmetrical at the base, they end bluntly. The petals lie against the dorsal sepal and adhere with their inner edges there, their tips are free. The fleshy lip is sessile and unlobed, the sides are bent upwards and cling to the column . On the inside there are thickened veins and hairs, on the outside there is a place with hemispherical papillae . The column is cylindrical, on the underside it is provided with a longitudinal furrow and hairy. The scar consists of a bilobed surface. The stamen is oval, pointed in front. It contains the club-shaped pollinia that hang on a small, round adhesive disc (Viscidium). The separating tissue between the stamen and the stigma (rostellum) is fleshy and tapered to a point. The capsule fruit is oval.
Occurrence
Stalkya muscicola is endemic to Venezuela. The habitat are forests at an altitude of around 3000 meters.
Systematics and botanical history
Stalkya muscicola is the only species in the genus Stalkya . The species was described in 1966 by Leslie Garay together with Galfrid Clement Keyworth Dunsterville . They classified them in the genus Spiranthes , and in 1979 the two published a classification in Schiedeella . In 1982 Garay finally established a genus of its own for this species. The name Stalkya comes from the nickname Dunstervilles, stalky . Dunsterville (1905–1988) was a British engineer and orchid specialist. The species name muscicola is made up of the Latin word muscus , "moss", and the ending -cola , "-bewohner".
Stalkya is classified within the tribe Cranichideae in the subtribe Spiranthinae . The genus Stalkya has been incorporated into Schiedeella on various occasions . However, it is more similar to Microthelys .
literature
- Leslie A. Garay: A generic revision of the Spiranthinae . In: Botanical Museum Leaflets of Harvard University . Vol 28, no. 4 , 1982.
- Alec M. Pridgeon, Phillip Cribb, Mark W. Chase, Finn Rasmussen (Eds.): Genera Orchidacearum. Orchidoideae (Part 2). Vanilloideae . Vol 3. Oxford University Press, New York / Oxford 2003, ISBN 0-19-850711-9 .
Individual evidence
- ↑ a b c d e Gerardo Salazar: Stalkya . In: Genera Orchidacearum . Vol 3, pp. 266-267.
- ^ A b Leslie Garay: A generic revision of the Spiranthinae . In: Botanical Museum Leaflets of Harvard University . Vol 28, No. 4, 1982, pp. 371-372.
- ↑ Rafaël Govaerts (ed.): Stalkya. In: World Checklist of Selected Plant Families (WCSP) - The Board of Trustees of the Royal Botanic Gardens, Kew .
- ↑ Lotte Burkhardt: Directory of eponymous plant names . Extended Edition. Botanic Garden and Botanical Museum Berlin, Free University Berlin Berlin 2018. [1]
- ↑ Helmut Genaust: Etymological dictionary of botanical plant names. 3rd, completely revised and expanded edition. Nikol, Hamburg 2005, ISBN 3-937872-16-7 , p. 401 (reprint from 1996).