Cactus novelties from southern Ecuador

Resumen

The epiphytic Rhipsalis riocampanensis from the upper montane rain forest of the Podocarpus National Park is described as a new species. A large columnar cactus previously known from N Peru, Browningia microsperma. is here recorded from the Loja province in southern Ecuador. It is the first time Browningia has been reported from Ecuador. Espostoa lanata ssp. roseiflora is described as a new subspecies based on a population in the Catamayo valley. It is suggested that Armatocereus rupicola is an older name for Armatocereus brevispinus.