Vanilla moonii

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Vanilla moonii
Vanilla moonii, illustration

Vanilla moonii , illustration

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

Vanilla moonii is a species of plant in the genus Vanilla ( Vanilla ) in the orchid family (Orchidaceae). It grows as a climbing plant in Sri Lanka .

description

Vanilla moonii is an evergreen climber. The shoot measures 1.2 to 1.5 centimeters in diameter, it is clearly grooved lengthways. The leaves are eight to 18 inches long and 2.5 to 4.5 inches wide. The leaf shape is narrowly egg-shaped to lanceolate, curved sickle-shaped, drawn out towards the front, ending bluntly. The base of the leaf is rounded, a petiole can hardly be seen.

Vanilla moonii blooms in April. The inflorescence becomes 2.5 to 7.5 centimeters long, the inflorescence axis is quite thick. The unbranched inflorescence consists of up to 21 flowers . The bracts are quite variable, they are 0.5 to 3.5 centimeters in size. Pedicel and ovary together measure 1.5 to three centimeters. The flowers are creamy yellow to whitish yellow. Sepals and petals are about 2.5 centimeters long, lanceolate in shape, sloping tubularly together in the lower area, their front part spread out. The lip is slightly lighter than the other petals, with brown hair. It is 2.5 centimeters long, undivided or indistinctly three-lobed, wrapped around the column in a tubular shape, the front edge is wavy. In the front third there is a strip with short hair, at the lower end of which sit thick, backward-directed papillae . The capsule fruit becomes about ten centimeters long and one centimeter in diameter.

distribution

Vanilla moonii is endemic to Sri Lanka. It inhabits dense forests up to 700 meters high.

Systematics and botanical history

Vanilla moonii was first described by Thwaites in 1861 .

Within the genus Vanilla , Vanilla moonii is classified in the subgenus Xanata and there in the section Thetya , which contains all species of the palaeotropic plants . According to Portères , Vanilla moonii resembles a spice vanilla ( Vanilla planifolia ) that has been reduced in size in all parts . Details of the flower are reminiscent of Vanilla griffithii , he suspected Vanilla ovalis and Vanilla albida to be further related species . According to Soto Arenas and Cribb , related species are Vanilla albida , Vanilla andamanica , Vanilla havilandii , Vanilla montana , Vanilla sanjappae and Vanilla yersiniana . The flowers are also similar to Vanilla annamica and Vanilla somai .

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. P. 182.
  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. 384 ( ucr.ac.cr [PDF; 692 kB ]).
  3. Rafaël Govaerts (ed.): Vanilla moonii. In: World Checklist of Selected Plant Families (WCSP) - The Board of Trustees of the Royal Botanic Gardens, Kew . Retrieved May 19, 2020.
  4. In: Enum. Pl. Zeyl. 1861, p. 312.