Vanilla havilandii

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

Vanilla havilandii is a species of vanilla ( Vanilla ) plant in the orchid family (Orchidaceae). It grows as a climbing plant in Borneo .

description

Vanilla havilandii is an evergreen climber. The leaves are oval to lanceolate, long and pointed at the front. The leaves are ten to 17 inches long and 2.5 to 5.5 inches wide. The petiole is one centimeter long. The leaves are thin in texture.

The three to four centimeters long, racemose inflorescence bears numerous nodding flowers that are close together . The bracts are three to four millimeters long, they are rounded to oval, blunt-ended and concave. Pedicel and ovary together measure four to five centimeters. The greenish sepals are three centimeters long, oblong-oval in shape and end bluntly. The petals are also green, ending bluntly, they are broadest above the middle. The white lip is entire, the edge is wavy at the front. On the lip there is an oval beard, which is composed of individual longitudinal hairy strips. The column is two centimeters long, at its top with two lateral widened strips ("winged"). The eleven to 15 centimeters long capsule fruit is roughly cylindrical in shape.

distribution

Vanilla havilandii is endemic to Borneo . It inhabits clearings in rainforests.

Systematics and botanical history

Vanilla havilandii was first described by Robert Allen Rolfe in 1918 . The name havilandii honors the collector of the type specimen .

Within the genus Vanilla , Vanilla havilandii is classified in the subgenus Xanata and there in the section Tethya , which contains all species of the Paleotropic . According to Portères , it is similar to Vanilla albida, which is also common in Asia . Soto Arenas and Cribb also mention the similarity of this species. They also state Vanilla andamanica , Vanilla montana , Vanilla moonii , Vanilla sanjappae and Vanilla yersiniana as relatives.

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. 209-210.
  2. ↑ a b c d 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. 379 ( ucr.ac.cr [PDF; 692 kB ]).
  3. ↑ Rafaël Govaerts (ed.): Vanilla havilandii. In: World Checklist of Selected Plant Families (WCSP) - The Board of Trustees of the Royal Botanic Gardens, Kew . Retrieved May 19, 2020.
  4. ↑ In: Kew Bulletin. 1918, p. 236.