Vanilla ribeiroi

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Vanilla ribeiroi
Systematics
Order : Asparagales (Asparagales)
Family : Orchids (orchidaceae)
Subfamily : Vanilloideae
Tribe : Vanilleae
Genre : Vanilla ( vanilla )
Type : Vanilla ribeiroi
Scientific name
Vanilla ribeiroi
Horn

Vanilla ribeiroi is a species of plant in the genus Vanilla ( Vanilla ) in the orchid family (Orchidaceae). It grows as a climbing plant in Brazil.

description

Vanilla ribeiroi is an evergreen climber. The shoot measures about half a centimeter in diameter, the nodes are hardly thickened. The leaves are twelve to 13 inches long and about 2.5 inches wide. The leaf shape is oblong-oval, rounded at the base with a short petiole (0.6 to 0.8 centimeters), ending in a pointed tip.

Vanilla ribeiroi blooms in November. The inflorescence bears five to twelve white flowers . The inflorescence axis is fleshy thickened, the bracts are also thick, protruding, concave, they end bluntly. The ovary is at the end widened like tiny sepals. Sepals and petals are four to 4.5 inches long, 1.3 to 1.4 inches wide, they end blunt. The inner petals are slightly smaller than the outer ones and clearly keeled on the outside. The lip is three to four inches long and up to two inches wide, yellowish in color towards the middle. The edge is wavy and covered with yellow fringes, in the middle of the lip there is hair about a millimeter long. The fairly straight column becomes 2.75 inches long and is hairy on the underside. The column is fused with the lip over half of its length.

distribution

Vanilla ribeiroi is found in Brazil, Guyana and Colombia. It inhabits forests on river banks.

Systematics and botanical history

Vanilla ribeiroi was first described by Hoehne in 1910 .

Within the genus Vanilla , Vanilla ribeiroi is classified in the sub-genus Xanata and there in the section Xanata , which only contains species of the Neotropics . According to Portères , Vanilla ribeiroi is similar to other South American vanilla species such as Vanilla angustipetala , but Soto Arenas and Cribb place this in a different subgenus. They name the Central American Vanilla helleri as a particularly similar species ; other related species are grouped together in the family group around the spice vanilla ( Vanilla planifolia ). Similar to Vanilla ribeiroi is the leafless Vanilla penicillata .

literature

  • Le Vanillier et la Vanille dans le Monde . In: Gilbert Bouriquet (ed.): Encyclopédie Biologique . tape XLVI . Paul Lechevalier, Paris 1954.

Individual evidence

  1. ↑ a b c d Roland Portères: Le Genre Vanilla et ses Espèces. In: Le Vanillier et la Vanille dans le Monde. Pp. 222-223.
  2. ↑ Rafaël Govaerts (ed.): Vanilla ribeiroi. In: World Checklist of Selected Plant Families (WCSP) - The Board of Trustees of the Royal Botanic Gardens, Kew . Retrieved May 20, 2020.
  3. ↑ In: Relat. Commiss. Linhas Telegr. Estratég. Mato Grosso do Amazonas. Appendix 5, Volume 1, 1910, p. 28.
  4. ↑ Miguel A. Soto Arenas, Phillip Cribb: A new infrageneric classification and synopsis of the genus Vanilla Plum. ex Mill. (Orchidaceae: Vanillinae) . In: Lankesteriana . tape 9 , no. 3 , 2010, p. 385 ( ucr.ac.cr [PDF; 692 kB ]).