Anthogonium is a monotypic genus (meaning only 1 species is known in the genus). There are some studies of large scale molecular phylogeny of the Orchid family (e.g., Górniak et al. 2010 , van den Berg et al. 2005 ), and this genus is one of the basal lineages within subfamily Epidendroideae. The subfamily Epidendroideae is the largest subfamily within Orchid family, which contains the majority of commonly grown orchids such as Cattleya , Cymbidium , Dendrobium , Phalaenopsis , Pleurothallids, and Vanda . But the relationship among the basal lineages of Epidendroideae are conflicting between the two studies, so it is difficult to say which other genus is most closely related to Anthogonium . Anthogonium gracile is a fairly widely distributed species; from North East India to Myanmar /Southern China/Vietnam region. A distribution map (occurrence data) and drawings can be found in Global Biodiversity Information Facility (GBIF) . In that map, one occurr...
Plants, Orchids, and Life in North