Monographs Details: Psychotria sessilis (Vell.) Müll.Arg.
Authority: Maguire, Bassett. 1972. The botany of the Guayana Highland--part IX. Mem. New York Bot. Gard. 23: 1-832.
Family:Rubiaceae
Discussion:

Coffea sessilis Vell., Fl. Flum. 64. 1825, et Icon. II. pl. 20. 1827.

Psychotria axillaris Vell., Fl. Flum. 67. 1835 et Icon. II. pl. 32. 1827, not Psychotria axillaris Willd. nor Cephaelis axillaris Sw.