After Dr. Baptista Caetano d’A. Nogueira, 19th century Brazilian philologist and ethnologist.
Epiphytic herbs, sympodial, with short rhizomes. Stems thickened into pseudobulbs, oblong, compressed, small papery bracts at base, green. Leaves apical, 2, leathery, flat. Inflorescences basal racemes, pendent. Flowers resupinate, medium sized, opening very slowly, mostly yellow. Sepals similar, dorsal free, laterals fused, incurved. Petals similar to sepals but somewhat larger, free, spreading. Labellum 3-lobed, side lobes large and embracing column, midlobe smaller and curved under. Column long, winged on each side. Pollinia 2, waxy, with stipe.
1 species from Brazil.
Many slow-to-open flowers, mostly yellow with red labellum midlobe, in pendent racemes.
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.