Trichocentrum ascendens (Lindl.) M.W. Chase & N.H. Williams, Lindleyana 16(2): 137. 2001.

Bas.: Oncidium ascendens Lindl., Edwards's Bot. Reg. 28: sub t. 4. 1842.

TYPE: Guatemala. This is from Guatemala, and has much the habit of O. cebollota; but the linear wings of the column, the small erect lateral lobes of the lip, and the many-toothed tubercle distinguish it at once. April 1841, Hartweg s.n. (holotype, K).

HOMOTYPIC SYNONYMS

Cohniella ascendens (Lindl.) Christenson, Lindleyana 14(4): 177. 1999.

Stilifolium ascendens (Lindl.) Königer & Pongratz, Arcula 7: 186. 1997.