Subshrubs epiphytic or epilithic. Stems rooting from lowermost nodes only. Leaves opposite, fleshy. Inflorescences extra-axillary, rachis usually branched, branches racemelike with close-spaced pedicel scars and producing successive umbel-like clusters of flowers. Calyx not glandular. Corolla tubular; lobes erect, twisted to left. Corona lobes 5, fleshy, erect, square, adnate lengthwise to gynostegium, margin strongly recurved at back. Anther with membranous apical appendages; pollinia 2 per pollinarium, erect, basal margin translucent. Stigma head beaked, exceeding anther appendages. Follicles linear-lanceolate.
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