A remarkable new species of (Amaryllidaceae) from the Department of Cauca, Colombia.

A new saxicolous species of Amaryllidaceae tentatively assigned to the tribe Clinantheae, Silverst., Meerow & Sánchez-Taborda, is described from the western slope of the Cordillera Occidental in the department of Cauca, Colombia. The new species differs from the two hitherto known species of in its yellow flowers and in its nearly obsolete perianth tube. The near loss of the perianth tube may be correlated with a change in pollinator. The new species lacks a bulb; it produces a large number of winged seeds that are wind-dispersed. A key to the species of is provided. This is the first record of the genus for Colombia. The phylogenetic position of the genus is discussed.