Cattleya elongata, the "cattleya with the elongated stalk", is an orchid species in the genus Cattleya endemic to the campo rupestre vegetation in northeastern Brazil.Genetic and morphological variability in Cattleya elongata Barb. Rodr. (Orchidaceae), endemic to the campo rupestre vegetation in northeastern Brazil. Daiane Trabuco da Cruz, Alessandra Selbach-Schnadelbach, Sabrina Mota Lambert, Patrícia Luz Ribeiro and Eduardo Leite Borba, Plant Systematics and Evolution, Volume 294, Numbers 1-2 (2011), pages 87-98,
Its ploidy is 2n = 80.page 250 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 http://onlinelibrary.wiley.com/doi/10.1111/j.1095-8339.2010.01059.x/abstract
Cattleya elongata forms two natural hybrids : Cattleya × tenuata (= C. elongata × C. tenuis) (Brazil) . Cattleya × undulata ( = C. elongata × C. schilleriana) (Brazil).
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