Brassia

Brassia one of orchis S of the tribe of Oncidiinae, is described by Robert Brown in 1813. Its name was given in honor to William Brass, botanist English illustrator, who herborized in Africa under the direction of Joseph Banks.

Description

Brassia and its many hybrids are orchis S required botanies. Commonly called " orchises spiders " , they are characterized by flowers with long sepals and long petals (for some they can reach more than 50 cm).

The zone of expansion of this plant épiphyte has as a center the buttresses of the the Peruvian Andes and extends on all tropical America (Central America, the Caribbean, Florida, Peru, Bolivia). Growing in tufts on trees, one finds it in the wet forests between 0 and 1500 m of altitude. So certain species are restricted in small geographical areas, Brassia caudata people all the above-mentioned zone.

Brassia have large Pseudobulbe S elliptic and oblong at the top of which leave one or two sheets coriaces. Between sheaths distiches and these pseudobulbes leave the not ramified side inflorescences from 15 to 25 cm, furnished with many flowers. Bractées are small and the labelle of the flower is not attached to the column. Both pollinies are fine.

Brassia, like all the orchises, have a method of original pollination: The wasp of the ways of the kind Pepsis (and Campsomeris ), misled by the resemblance of Brassia, pricks the column and the labelle one while trying to seize its prey. With movements, the head of the wasp comes into contact with the bags to pollen which it transports towards another Brassia.

Species

  • Brassia angustilabia Schltr. (1925)
  • Brassia antherotes Rchb.f. (1879)
  • Brassia arachnoidea Barb.Rodr. (1877)
  • Brassia will arcuigera Rchb.f. (1869)
  • Brassia aurorae D.E.Benn. (1992)
  • Brassia bidens Lindl. (1844)
  • Brassia boliviensis Schltr. (1913)
  • Brassia caudata (L.) Lindl. (1825)
  • Brassia cauliformis C.Schweinf. (1946)
  • Brassia chloroleuca Barb.Rodr. (1877)
  • Brassia cochleata Knowles & Westc. (1838)
  • Brassia cyrtopetala Schltr. (1912)
  • Brassia filomenoi Schltr. (1921)
  • Brassia gireoudiana Rchb.f. & Warsz. (1854)
  • Brassia helenae Rchb. ex Linden (1881)
  • Brassia huebneri Schltr. (1925)
  • Brassia iguapoana Schltr. (1925)
  • Brassia jipijapensis Dodson & N.H.Williams (1980)
  • Brassia josstiana Rchb.f in E.A.von Regelation (1854)
  • Brassia koehlerorum Schltr. (1921)
  • Brassia lanceana Lindl. (1835)
  • Brassia maculata R.Br in W.T.Aiton (1813) Brassia commune
  • Brassia neglecta Rchb.f. (1856)
  • Brassia pascoensis D.E.Benn. & Christenson (2001)
  • Brassia peruviana Poepp. & Endl. (1836)
  • Brassia rhizomatosa Garay & Dunst. (1965)
  • Brassia signata Rchb.f. (1881)
  • Brassia suavissima Pupulin & Bogarín (2005)
  • Brassia thyrsodes Rchb.f. (1868)
  • Brassia transamazonica D.E.Benn. & Christenson (2001)
  • Brassia verrucosa Bateman ex Lindl. (1840) (subspecies of Brassia gireoudiana , according to Robert L. Dressler and N.H. Williams 2003)
  • Brassia villosa Lindl. (1854)
  • Brassia wageneri Rchb.f. (1854)
  • Brassia warszewiczii Rchb.f. (1852)

Hybrids

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