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Epidendrum cristatum
''Epidendrum cristatum''Ruiz & Pav. (1789) (the "comb ''Epidendrum''") is a species of orchid in the genus ''Epidendrum'' which is known to grow both terrestrially and epiphytically at altitudes near 1 km in the Neotropics from Mexico through Brazil, as well as Trinidad.
== Description ==
''Epidendrum cristaum'' is an unusually large reed-stemmed ''Epidendrum'', growing up to 8 m tall.〔Schweinfurth. "Orchids of Peru" ''Fieldiana: Botany'' 30(2) 1959. p. 429〕 As with other members of the subgenus ''E''. subg. ''Spathium'', the stems of ''E. cristatum'' are un-swollen and covered by close, tubular sheathes which bear distichous, somewht leaathery, lanceolate leaves (up to 3 cm long by 4 cm wide) on the upper part of the stem. The terminal paniculate inflorescence grows through several enlarged spathes, arranged in a fan, which cover the peduncle.〔H. G. Reichenbach Nr. 214 of "Orchides" in C. Müller, Ed. ''Walpers. Annales Botanices Systematicae'' 6(1861)372. Berlin. as ''E. raniferum''〕 The yellow-green flowers often have purple-brown markings. The oblong convex obtuse sepals can grow up to 2.8 cm long, slightly longer than the linear petals. The lip is adnate to the column to its apex with a shape that resembles a comb.
The diploid chromosome number of ''E. cristatum'' has been determined as 2''n'' = 40, the haploid chromosome number as ''n'' = 20.〔page 251 of Leonardo P. Felix and Marcelo 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/pdf〕
抄文引用元・出典: フリー百科事典『 ウィキペディア（Wikipedia）』
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