Vanilla chalotii

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

Vanilla chalotii is a species of vanilla ( Vanilla ) in the orchid family (Orchidaceae). It grows as a climbing plant in West Africa.

description

Vanilla chalotii is an evergreen climber with a slender, flexible stem. The leaves are about seven inches long and 1.1 inches wide. The leaf shape is very narrowly ovate to linear, the leaf ends very long and pointed.

The inflorescence bears only a single flower . The dorsal sepal is about 2.8 inches long and 0.8 inches wide, the side sepals are slightly shorter and wider. All three are bulbous, not keeled, they end up pointed. The petals are just as large as the dorsal sepal, keeled on the outside, slightly asymmetrical in shape. The 1.7 cm long lip is three-lobed, the middle lobe is small and curved downwards. In the lower half the lip is bulbous, the front edge is wavy. The base of the blade is covered with hairy and warty calluses, in the middle it is hairy. The column is semicircular in cross-section with slightly widened, notched edges, it is completely covered by the lip.

distribution

Vanilla chalotii occurs in West Africa in Gabon and Equatorial Guinea at altitudes of 400 to 1200 meters. It inhabits forests that are always moist, and at higher altitudes also bushes from Clappertonia polyandra .

Systematics and botanical history

Vanilla chalotii was first described by Achille Eugène Finet in 1909 . The specific epithet is sometimes written chalottii .

Within the genus Vanilla , Vanilla chalotii is classified in the subgenus Xanata and there in the section Thethya , which contains all species of the paleotropic plants . Finet compared it to Vanilla crenulata (a synonym for Vanilla africana ). According to Portères, on the one hand it resembles Asian species such as Vanilla griffithii , on the other hand there are similarities to other African species such as Vanilla nigerica , Vanilla seretii and Vanilla imperialis . Soto Arenas and Cribb confirm the relationship to Vanilla nigerica and Vanilla seretii , but do not classify the other species mentioned as being closely related to Vanilla chalotii .

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 Roland Portères: Le Genre Vanilla et ses Espèces. In: Le Vanillier et la Vanille dans le Monde. Pp. 170-171.
  2. ↑ 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. 372 ( ucr.ac.cr [PDF; 692 kB ]).
  3. ↑ a b Rafaël Govaerts (Ed.): Vanilla chalotii. In: World Checklist of Selected Plant Families (WCSP) - The Board of Trustees of the Royal Botanic Gardens, Kew . Retrieved May 19, 2020.
  4. ↑ V. Droissart, B. Sonke, M. Simo, T. Stevart: New Orchid Records From Atlantic Central Africa . In: Edinburgh Journal of Botany . tape 66 , no. 1 , 2009, p. 115-132 .
  5. ↑ In: Bull. Soc. Bot. France. Volume 56, No. IX, 1909, p. 102 ( biodiversitylibrary.org ).