There are about 6 species of evergreen, epiphytic orchids, in this genus. They occur at high altitudes in the Andes of Ecuador and Peru. One or two linear, dark green leaves, to 8″ long, are borne at the tip of each ovoid to conical pseudobulb. From late spring to summer, usually large, scarlet or bright pink flowers are borne in tall or short, arching racemes arising from the base of the psuedobulb.
Cool-growing orchids (see chart below). Grow in epiphytic orchid potting mix in pots or slatted baskets. In summer, provide humid conditions with bright filtered light, and good ventilation. Water freely, applying fertilizer at every third watering, and mist once or twice a day. In winter, admit full light and water sparingly. Divide when plant fills containers.
Prone to spider mites, aphids, and mealybugs.