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

Tapogomea carapichea Poir. in Lam., Encycl. 7: 587. 1806.

Carapichea guianensis Aubl., Pl. Guian. 1: 168. pl. 64. 1775, not Psychotria guianensis Raeusch. 1797, nor Psychotria guianensis (Aubl.) Rusby, 1893.

Callicocca guianensis (Aubl.) Gmel., Syst. Nat. 1: 372. 1791.

Carapichea aubletii DC., Prodr. 4: 536. 1830.

Cephaelis guianensis (Aubl.) Brem., Rec. Trav. Bot. Neerl. 31: 297. 1934.

Cephaelis guianensis (Aubl.) Standi. Field Mus. Publ. Bot. 4: 335. 1929.

Uragoga guianensis (Aubl.) Pulle, Enum. Pl. Surin. 446. 1906.

Cephaelis involucrata Willd., Sp. Pl. 1: 979. 1798, not Psychotria involucrata Willd. ex DC. 1830, nor Psychotria involucrata Sw. 1797, nor Psychotria involucrata A. Rich. 1850.

Schradera ligularis Rudge, Pl. Guian. 1: 29. pl. 45. 1805.