Английская Википедия:Cattleya walkeriana
Шаблон:Short description Шаблон:Speciesbox
Cattleya walkeriana, or Walker's cattleya, is a species of orchid. It differs from most species of Cattleya by having inflorescences which arise from the rhizome instead of from the apex of the pseudobulbШаблон:Refn. In its native habitat (the Brazilian Central Plateau) it grows as either an epiphyte or a lithophyte, sometimes in full sun, at elevations up to 2000 meters[1]Шаблон:Refn. Pseudobulbs are relatively short, bulbous or fusiform, with one or two ovate leaves at the apex. Inflorescence is one- or few-flowered, about 8" (20 cm) tall. Flowers are 4-5" (9-12 cm) across.[2][3]
Genetically, C. walkeriana is close to bifoliate Cattleyas.[4] The diploid chromosome number of C. walkeriana has been twice determined as 2n = 40; the diploid chromosome number of the variety C. walkeriana var. princeps L.C.Menzes has been determined as 2n = 80.[5]
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References
External links
- ↑ Шаблон:Cite web
- ↑ Шаблон:Cite web
- ↑ I. F. La Croix. The New Encyclopedia of Orchids: 1500 Species in Cultivation (Timber Press, 2008), p.92
- ↑ Van den Berg, Cassio. "Reaching a compromise between conflicting nuclear and plastid phylogenetic trees: a new classification for the genus Cattleya (Epidendreae; Epidendroideae; Orchidaceae)." Phytotaxa 186.2 (2014): 75-86. [1]
- ↑ page 251 of L. P. Felix and M. Guerra: "Variation in chromosome number and the basic number of subfamily Epidendroideae (Orchidaceae)" Botanical Journal of the Linnean Society 163(2010)234—278. The Linnean Society of London. Downloaded October 2010 from onlinelibrary.wiley.com
