Greek isos – equal; cheilos – lip; the labellum is about equal in size to the other perianth segments.
Epiphytic, epilithic or terrestrial herbs, sympodial, with short, creeping rhizomes. Stems cane-like, erect, tufted. Leaves 2-ranked, many, leathery, linear to oblong, stalkless. Inflorescences terminal 1- or 2-sided racemes, erect or arching. Flowers resupinate, 1-many, small, variously coloured. Sepals similar, dorsal free, laterals partly or wholly joined, forming a pouch with column foot, keeled, not spreading. Petals shorter and wider than sepals, not keeled, free. Labellum entire or obscurely 3- lobed, narrow, joined to column or column foot, often s-shaped at base. Column long, erect, toothed at tip, sometimes with a short foot. Pollinia 4, waxy.
Two species from Mexico to Brazil and the West Indies.
Small, brightly coloured tubular-based flowers; tufted leafy stems.
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.
