Cephaelis tatei Standl. in Gleason, Bull. Torrey Club 56: 406. 1929, not Psychotria tatei Standl., Field Mus. Publ. Bot. 7: 460. 1931.
This taxon belongs to the large involucrate group of species in Psychotria. The flowers, which occur in groups of 2-4, are subtended by bracts on the side facing the outside of the head, but the individual flower is not subtended or surrounded by two bracteoles. Instead, one finds erect fleshy, aculeate processes at the base of the flowers or bracts. The umbellate arrangement of the inflorescence, together with the size and shape of the involucral bracts, points to a relation of this species with the series to which belong P. franquevilleana, P. egensis, and P. schomburgkii.
When transferred from Cephaelis to Psychotria, this species must be called Psychotria crocochlamys Sandw., since there already exists a Psychotria tatei Standi., which applies to a different taxon.