Vanilla sprucei
| Vanilla sprucei | ||||||||||||
|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Systematics | ||||||||||||
|
||||||||||||
| Scientific name | ||||||||||||
| Vanilla sprucei | ||||||||||||
| Rolfe |
Vanilla sprucei is a plant from the genus vanilla ( Vanilla ) in the family of orchid (Orchidaceae). The climbing plant is found in South America.
description
Vanilla sprucei is an evergreen climber with a thin, pliable stem. The leaves are lanceolate to oblong, with an attached, rather blunt tip at the front. The leaf length is about 10 to 11 centimeters and 2.5 to 3.7 centimeters wide, the petiole is 1.2 to 1.5 centimeters long. The leaf vein is reticulated.
The racemose inflorescence is 1.8 to 2 inches long. It bears four to eight, possibly more, greenish-white flowers that open one after the other. The bracts are elongated, they end blunt and measure 2.5 to 5 millimeters in length. The petals are linear to lanceolate, they end pointed, with a length of 5 to 5.6 centimeters they are only 3 to 3.7 millimeters wide. The lip becomes 3 centimeters long, at the base it is fused with the sides over the entire length of the column . The front free part is not lobed and wavy at the edge. The longitudinal veins on the lip are rough, toothed and hairy, in the middle of the lip there is a tuft of hair. The narrow, club-shaped column is 3 centimeters long, on the underside it is hairy.
distribution
Vanilla sprucei is known from Colombia and northern Brazil. The collection by Spruce on which the first description is based was made on the Río Vaupés . It occurs in moist, evergreen forests.
Systematics and botanical history
This orchid was described by Rolfe in 1896 .
Within the genus Vanilla , Vanilla sprucei is classified in the sub-genus Xanata and there in the section Xanata , which only contains species of the Neotropics . According Portères similar Vanilla sprucei of Vanilla calyculata , but after Soto Arenas and Cribb belongs to a different lineage. These authors name Vanilla espondae , Vanilla hartii and Vanilla trigonocarpa as related species .
literature
- Le Vanillier et la Vanille dans le Monde . In: Gilbert Bouriquet (ed.): Encyclopédie Biologique . tape XLVI . Paul Lechevalier, Paris 1954.
Individual evidence
- ↑ a b c d Roland Portères: Le Genre Vanilla et ses Espèces. In: Le Vanillier et la Vanille dans le Monde. Pp. 247-248.
- ↑ a b c Miguel A. Soto Arenas, Phillip Cribb: A new infrageeric classification and synopsis of the genus Vanilla Plum. ex Mill. (Orchidaceae: Vanillinae) . In: Lankesteriana . tape 9 , no. 3 , 2010, p. 394 ( ucr.ac.cr [PDF; 692 kB ]).
- ↑ a b Rafaël Govaerts (ed.): Vanilla sprucei. In: World Checklist of Selected Plant Families (WCSP) - The Board of Trustees of the Royal Botanic Gardens, Kew . Retrieved May 20, 2020.