After Isabel, Countess d’Eu, patron of science and floriculture in Brazil.

Epiphytic herbs, sympodial, with creeping, sometimes branched rhizomes. Stems thickened into small ovoid pseudobulbs, clustered, with fibrous basal bracts. Leaves apical, solitary, needle-like. Inflorescences terminal racemes, erect or arching. Flowers non-resupinate, 1 or 2, small, mostly white and pink. Sepals similar, spreading, dorsal free, laterals joined at base forming a small pouch with labellum. Petals narrow-oblong, smaller than sepals, free. Labellum entire, broad-ovate, tubular at base. Column short, fleshy, reddish or purplish at tip. Pollinia 8.

1 species from Brazil.

The solitary dark green needle-like leaves; small pseudobulbs covered by fibrous bracts.

Source: Jeanes, J. (2005). Orchidaceae. In: Spencer, R.. Horticultural Flora of South-eastern Australia. Volume 5. Flowering plants. Monocotyledons. The identification of garden and cultivated plants. University of New South Wales Press.