Caularthron

Caularthron
Scientific classification
Kingdom:	Plantae
Division:	Magnoliophyta
Class:	Liliopsida
Order:	Orchidales
Family:	Orchidaceae
Subfamily:	Epidendroideae
Tribe:	Epidendreae
Subtribe:	Laeliinae
Alliance:	Barkeria
Genus:	Caularthron; Raf.
Species
	Caularthron bicornutum; Caularthron bilamellatum; etc.;

Caularthron is a genus of orchids with 3 species. They are epiphytic orchids with specialized hollow pseudobulbs that house ants. The genus is exclusively found in Amazonia.

Diacrium (Lindl.) Benth. has been brought into synonymy with Caularthron.