Caularthron Raf. (1837), abbreviated Cau.http://www.rhs.org.uk/RHSWebsite/files/87/87be8b1e-908e-4e04-9ee6-30c438354458.pdf downloaded October 3, 2010 in the horticultural trade, is a genus of orchids with 4 species.Information retrieved from http://apps.kew.org/wcsp/qsearch.do on October 3, 2010, after entering "Caularthron". They are epiphytic orchids with specialized hollow pseudobulbs that house ants. The genus is exclusively found in the tropical regions of southern Mexico, Central America, the West Indies, and northern South America.Kew World Checklist of Selected Plant Families
List of species Species accepted as of May 2014: Image Name Distribution Elevation (m) Caularthron amazonicum (Schltr.) H.G.Jones (1968) Trinidad, Venezuela, Brazil Caularthron bicornutum (Hook.) Raf. (1837) 2n = 40, 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/pdfTrinidad-Tobago, Venezuela, Brazil, Suriname, Guyana, Colombia Caularthron bilamellatum (Rchb.f.) R.E.Schult. (1958) Belize, Central America, northern South America (Roraima, Venezuela, Colombia, Ecuador), Trinidad, Chiapas 0 - 700 Caularthron kraenzlinianum H.G.Jones (1980)Windward Islands
References