| 词条 | Brassavola |
| 释义 |
| image = Brassavola-flagellaris.jpg | image_caption = Brassavola flagellaris | display_parents = 3 | taxon = Brassavola | authority = R.Br., 1813 | type_species = B. cucullata | type_species_authority = (L.) R.Br. in W.T.Aiton | synonyms_ref = [1] | synonyms = *Eudisanthema Neck. ex Post & Kuntze
}} Brassavola is a genus of 21 orchids (family Orchidaceae). They were named in 1813 by the Scottish botanist Robert Brown. The name comes from the Italian nobleman and physician Antonio Musa Brassavola. This genus is abbreviated B. in trade journals. These species are widespread across Mexico, Central America, the West Indies and South America.[1] They are epiphytes, and a few are lithophytes. A single, apical and succulent leaf grows on an elongated pseudobulb. The orchid yields a single white or greenish white flower, or a raceme of a few flowers. The three sepals and two lateral petals are greenish, narrow and long. The base of the broad, sometimes fringed lip partially enfolds the column. This column has a pair of falciform (sickle-shaped) ears on each side of the front and contains twelve (sometimes eight) pollinia. Most Brassavola orchids are very fragrant, attracting pollinators with their citrusy smell. But they are only fragrant at night, in order to attract the right moth. Longevity of flowers depends on the species and is between five and thirty days. In 1698 Brassavola nodosa was the first tropical orchid to be brought from the Caribbean island Curaçao to Holland. Thus began the propagation of this orchid and the fascination for orchids in general. TaxonomyThe species of Brassavola have been divided into four sections:[2] B. sect. BrassavolaThis monotypic section, erected by H. G. Jones in 1969, contains the type of the genus:
B. sect. SessilabiaThis section, erected by Rolfe in 1902, is characterized by narrow labella with fimbriate margins to wider labella with entire margins.
B. sect. CuneilabiaThis section, erected by Rolfe in 1902, is characterized by narrowly constricted labellum bases. The sectional type is B. nodosa
B. sect. LateralifloraeThis section, erected by H.G.Jones in 1975, is characterized by laterally-borne inflorescences. The sectional type is B. acaulis
Other speciesOther species accepted as of May 2014[1] but of unknown section:
Greges and hybrid generaBrassavola is in the same alliance as the genera Cattleya and Laelia. They have been used extensively in hybridization and represent the "B" at the beginning of the names of such crosses. For example, Blc. is Brassolaeliocattleya.
References1. ^1 2 {{cite web |url=http://apps.kew.org/wcsp/namedetail.do?name_id=24179 |title=Kew World Checklist of Selected Plant Families |publisher=Royal Botanic Gardens Kew |accessdate=21 February 2017 }} 2. ^H. G. Jones: "Nomenclatural revision o the genus Brassavola R. Br. of the Orchidaceae" Ann. Naturhistor. Mus. Wien 79(1975)9—22 == External links ==
7 : Orchids of Mexico|Orchids of Central America|Orchids of South America|Flora of the Caribbean|Laeliinae genera|Brassavola|Epiphytic orchids |
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