Aerides Lour., Fl. Cochinch. 2 (1790) 525
- Genus Aeeridium Salisb., Trans. Hort. Soc. 1 (1812) 295
- Genus Orxera Raf., Fl. Tellur. 4 (1836) 37
Monopodial epiphytic, rarely terrestrial plants. Stem elongated, with many leaves arranged in two rows. Leaves sheathing at the base, glabrous, deciduous, duplicate, leathery. Inflorescence lateral, a raceme or rarely a panicle. Flowers medium-sized, showy. Sepals free. Petals free, often fairly different in shape from the dorsal sepal. Lip spurred, with the spur usually pointing forwards; at the base usually rather stiffly hinged with the column-foot, or immobile; three-lobed, mid-lobe dorso-ventrally flattened. Column-foot present, relatively long. Pollinia 2, cleft, solid, caudicles absent, stipe linear, often widened at the apex, viscidium present.