(pronounced: dye-glye-FOH-sah)


subtribe Collabiinae, of unknown affinity.


Trailing terrestrials rooting along the prostrate rhizome. Pseudobulbs narowly conic. Leaves one per pseudobulb, erect, elliptic-ovate, long-petiolate. Inflorescences erect long-pedunculate racemes produced on a specialized leafless stem, few to many flowered. Sepals and petals free, spreading, subsimilar. Lip unlobed or 3-lobed, sessile or short-clawed, the callus of high parallel keels. Column arcuate, without wings, with foot, the anther complexly ornamented; pollinia 2, naked.


From the Greek di, meaning twice, and glyphein, meaning to cleave, referring to the apically bifid anther.


A genus of two species from northeast India to New Guinea. The genus is closely related to Chrysoglossum and Collabium but differs by lacking a distinct saccate nectary.

Care and Culture Card

See basic growing conditions and care information below.


van der Burgh, W. and E. F. de Vogel 1997. Revision of the orchid genera Chrysoglossum, Collabium, Diglyphosa, and Pilophyllum (subtribe Collabiinae). Orch. Monogr. 8:135-174.