Tên Khoa học: CypripediumTên tiếng Anh: Tên tiếng Việt: Tên khác:
The genus Cypripedium L. includes 40–45 species distributed mainly in areas of Holarctic region with temperate climate. Its highest species diversity is observed in the eastern part of mainland Asia and in Northern America. In their intact habitats, some species of the genus are quite common playing significant role in plant communities forming picturesque landscape aspects during anthesis (Averyanov, 1999, 2000). Some Cypripedium species are not uncommon in uplands and mountains of subtropical countries, but few of them reach tropical zone. In Central America these species are Cypripedium irapeanum La Llave et Lex., C. molle Lindl. and C. dickinsonianum Hagsater distributed from Mexico to Guatemala, Salvador and Honduras (Cribb, 1997; Eccarius, 2009). In Asia only two species – Cypripedium lentiginosum P. J. Cribb et S. C. Chen and C. subtropicum S. C. Chen et K. Y. Lang, reported in this paper, reach truly tropical zone. Localities of these species recently discovered in northern Vietnam represent southernmost locations of the genus area in the Old World. A brief taxonomical review of two discovered species in the flora of Vietnam is presented below. This treatment includes key for species identification; standard taxonomic citations for the genus, sections, species and synonyms; data on types; available information on ecology, phenology and distribution, expected IUCN Red List status; notes on phylogeny, taxonomy, geography and possible conservation actions, as well as list of studied specimens and relevant materials.
The genus Cypripedium in the flora of Vietnam
Cypripedium L., 1753, Sp. Pl.: 951; Cribb, 1997, Gen. Cypripedium: 1–301; Eccarius, 2009, Orchideengattung Cypripedium: 1–384.
Type: C. calceolus L.
40–45 species. Europe, temperate and subtropical Asia (except arid areas), Himalayas, China, northern Indochina, North and Central America (south to Honduras and Guatemala).
In Vietnam: two species