Four new species of Columnea (Gesneriaceae) with primary distributions in Colombia

Recent studies investigating the species of Columnea sections Ortholoma and Collandra have uncovered several new species to science. In the present paper we describe four species, Columnea ceticeps, C. ferruginea, C. fractiflexa, and C. laciniata with a primary distribution in Colombia as part of ongoing studies in the revised subgeneric classification of the genus and revision of the species of section Ortholoma.