巨球组 ju qiu zu

Diphyes sect. Macrocaules Blume, Bijdr. 318. 1825 ["Macrocaulia"].

Rhizome creeping; roots sprouting along rhizome, spreading; new shoots arising well above basal node of pseudobulb. Pseudobulbs distinct, apex with 1 leaf. Leaves persistent or deciduous, thin to thick. Inflorescences arising near pseudobulbs, solitary or a few in succession, 1-flowered. Pedicel with basal node distinctly more than 1 × diam. of pedicel above attachment of subtending bract. Sepals free, ± equally long or lateral sepals somewhat longer, margins glabrous, 3-veined. Petals: margins glabrous, 1-veined; lip glabrous adaxially, margins without auricles or lateral lobes, glabrous. Column: stigma not protruding at its base, foot distinct; anther: front margin not or slightly projecting, abaxially with a rounded crest; pollinia 4, inner 1/2 as long as outer or shorter, all without appendages.

Sixty-three provisionally accepted species: Nepal to the Philippines and Sulawesi; three species (one endemic) in China.