Guarianthe, abbreviated Gur. in the horticultural trade,http://www.rhs.org.uk/RHSWebsite/files/87/87be8b1e-908e-4e04-9ee6-30c438354458.pdf is a small genus of epiphytic orchids, growing in wet forests in Mexico, Central America, Colombia, Venezuela and Trinidad. It was separated from the bifoliate Cattleyas in 2003,Dressler and Higgins: "Guarianthe, a Generic Name for the “Cattleya” skinneri Complex" Lankesteriana 7(2003)37—38 based on phylogenetic studies of nuclear DNA sequence data.van den Berg et al.: "A Phylogenetic Analysis of Laeliinae (Orchidaceae) based on Sequence Data from Internal Transcribed Spacers (ITS)of Nuclear Ribosomal DNA", Lindleyana 15(2)96—114. 2000.
Species Image Name Distribution Elevation (m) Guarianthe aurantiaca (Bateman) Dressler & W.E. Higgins 2003 Widespread across much of Mexico, south to Costa Rica 300 – 1600 meters Guarianthe bowringiana (Veitch) Dressler & W.E. Higgins 2003 Chiapas, Belize, Guatemala, Honduras 210 – 900 meters Guarianthe patinii (Cogn.) Dressler & W.E. Higgins 2003 Costa Rica, Panama, Colombia, Venezuela, Trinidad; naturalized in Ecuador 30 – 800 meters Guarianthe skinneri (Bateman) Dressler & W.E. Higgins 2003 from Chiapas, Mexico south to Panama 200 – 2300 meters
Natural hybrid Guarianthe × laelioides (Lem.) Van den Berg 2015 = Gur. aurantiaca × Gur. skinneri – Chiapas, Belize, Guatemala, Honduras, Nicaragua
References
(1809) Nouveau Bulletin des Sciences, publié par la Société Philomatique de Paris 1: 318. (2009) Epidendroideae (Part two). Genera Orchidacearum 5: 71 ff. Oxford University Press.
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