Guarianthe aurantiaca

Description

Guarianthe aurantiaca is a species of orchid. It is widespread across much of Mexico, south to Costa Rica. The diploid chromosome number of G. aurantiaca has been determined as 2n = 40. Guarianthe, abbreviated Gur. in the horticultural trade, 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, based on phylogenetic studies of nuclear DNA sequence data