After Promeneia, Greek priestess at Dodona, mentioned by Herodotus.
Epiphytic herbs, sympodial, with short rhizomes. Stems thickened into small ovoid to spherical pseudobulbs, clustered, sheathed by leaf bases. Leaves lateral and/or apical, 1-5, thin, pleated, often glaucous. Inflorescences basal racemes, short, arching to pendent. Flowers resupinate, 1 or 2, medium sized, showy, fleshy, yellow, often with reddish streaks. Sepals similar, dorsal free and hooding, laterals joined to column foot forming a short pouch, spreading. Petals similar, spreading, free. Labellum 3-lobed, side lobes erect around column, midlobe large and spreading, callus lobed or warty. Column fleshy, with a short foot. Pollinia 4, waxy.
About 15 species from Brazil.
Small to medium sized epiphytes with disproportionately large, showy, usually solitary flowers.
Source: (2005). Orchidaceae. In: . Horticultural Flora of South-eastern Australia. Volume 5. Flowering plants. Monocotyledons. The identification of garden and cultivated plants. University of New South Wales Press.