24. Eumachia astrellantha (Wernham) Delprete & J.H. Kirkbr. in J. Bot. Res. Inst. Texas 9: 76. 2015 .

Ξ Psychotria astrellantha Wernham in J. Bot. 52: 316. 1914 . Ξ Chytropsia astrellantha (Wernham) Bremek. in Recueil Trav. Bot. Néerl. 31: 292. 1934 . Ξ Margaritopsis astrellantha (Wernham) L. Andersson in Syst. Geogr. Pl. 72: 230. 2002 .

Typus: GUYANA: British Guiana, Potaro River below the Kaieteur, IX-X.1881, Jenman 959 (holo-: K [K000173648] image seen) .

Notes. – This species is found in the Guianas and Amazonian Venezuela, Ecuador, Peru, and northern Brazil (TAYLOR, 2005). See TAYLOR (2005) and DELPRETE & KIRKBRIDE (2015) for synonymy. DELPRETE & KIRKBRIDE (2015) reported that this species is found “throughout Brazil ” but it seems to be restricted to the Amazon basin. Eumachia astrellantha has often been confused with E. chaenotricha, which is found widely in eastern and southeastern Brazil.