Monographs Details: Psychotria transiens Wernham
Authority: Maguire, Bassett. 1972. The botany of the Guayana Highland--part IX. Mem. New York Bot. Gard. 23: 1-832.
Family:Rubiaceae
Discussion:

Cephaelis ernesti Krause, Notizbl. Bot. Gart. Berlin 6: 210. May, 1914, not Psychotria ernesti Krause, Verh. Bot. Ver. Brand. 50: 109. 1909.

Each of the three heads consists of three sessile flowers, the central one of which is without bracteoles, while the other two flowers have two small, suborbicular-broadly ovate bracteoles at their base.