Subgenus Balamara Otte & Alexander, 1983
Subgenus Parametioche Otte & Alexander, 1983
Subgenus Trigonidium Rambur, 1838
subgenus Zudella Gorochov, 1988
The epiphytes and lithophytes of the genus have long or short rhizomes. Its pseudobulbs are cylindrical or ovoid with overlapping sheathes at their base and one or two leaves at their apex. The inflorescences of the genus are basal, erect, and single flowered, with the flower usually as long or longer than the leaves. The flowers are tubular at the base with sepals spreading. The sepals are larger than the petals and the petals are larger than the lip. The lip is trilobed and not spurred.
Plants of the genus grow well in pots with standard epiphyte mix, in intermediate conditions with light shade and high humidity. Plants should be kept dry but not so dry that pseudobulbs shrivel.