Monographs Details: Psychotria phelpsiana Steyerm.
Authority: Maguire, Bassett. 1972. The botany of the Guayana Highland--part IX. Mem. New York Bot. Gard. 23: 1-832.
Discussion:This species shows its affinities with the preceding P. durifolia Standl. in the axillary inflorescences, persistent, connate, rigid, short- and sharp-pointed stipules, wing-angled peduncles and hypanthium, spreading bracts at base of inflorescence, cellular-reticulate calyx, and similarly papillate-furfuraceous surface of corolla.