O. (Leucoglossum, Lindl.) pseudobulbis ovatis compressis 2-3-phyllis, foliis oblongis acutis basi conduplicatis pedunculo radicali erecto (apice) nutante 3-7-floro brevioribus, bracteis scariosis amplexicaulibus ovario duplo brevioribus, sepalis petalisque latioribus membranaceis oblongis undulatis apiculis recurvis, labelli ungue cucullato carnoso, lamellis duabus erectis dentibusque totidem anticis, limbo ovato acuto dentato subpubescente, columnâ apterâ elongatâ. (Lindl. quibusdam mutatis.)

Odontoglossum nebulosum, Lindl. Fol. Orch.

Odontoglossum maxillare, Lemaire (nec Lindley), Illustration Horticole (1859), t. 200.

Habitat in Mexico, prope Oaxaca (Karwinski, Galeotti, etc.), circiter 5000 ft.

Pseudobulbs 2 to 3 inches long, smooth, ovate, somewhat compressed, 2- or 3-leaved. Leaves 2 or 3 at the apex of the pseudobulbs, oblong, acute, shorter than the Scape, which, rising from the base of the pseudobulbs, is bent down at its upper extremity by the weight of from 3 to 7 large and handsome Flowers. Bracts only half the length of the ovary, embracing the flower-stem. Sepals 1½ inches long. Petals much wider than the sepals, and like them of an oblong form, waved at the margin, and a little recurved at the end, which