Epidendreae subtribe Laeliinae

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Caespitose epiphytes. Stems erect, furrowed, fleshy. Leaves numerous, alternate, distichous, linear, notched at the apex, graduating in size from the base. Inflorescences terminal, sessile, congested racemes, usually with one flower open at a time in succession. Flowers showy, rose, the lip with a central white patch. Sepals and petals free, spreading, subsimilar with the petals broader. Lip unlobed, obovate, with small basal callus. Column short, with a prominently two-lobed rostellum; pollinia 4, on caudicles.


From the Greek di, meaning twice, meros, meaning part, and andra, meaning stamens, alluding to the large reflexed lobes of the clinandrium.


A genus of eight species ranging from Mexico to Peru. All eight species were formerly included in one highly variable species known as Epidendrum stenopetalum W. J. Hooker.

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Siegerist, E. S. 1986. The genus Dimerandra. Bot. Mus. Leafl. 30(4):199-222.

Siegerist, E. S. 1987. The genus Dimerandra. Amer. Orchid Soc. Bull. 56(4):388-401.