, a new critically endangered species in the previously monotypic genus Ravenna (Amaryllidaceae).

Campos-Rocha & Dutilh, is described as the second species of the formerly monotypic genus . It is characterized by a one flowered inflorescence, completely hollow scape, white or lightly magenta-striated flower that is enclosed by spathe bracts fused for more than the lower fifth of its length. Comments on its range, habitat, phenology, as well as photographs and illustrations are provided.