21. Eumachia acuifolia (C. Wright) Delprete & J.H. Kirkbr. in J. Bot. Res. Inst. Texas 9: 76. 2015 .

Ξ Margaritopsis acuifolia C. Wright in Sauvalle in Anales Acad. Ci. Méd. Habana 6: 147. 1869 . Ξ Margaritopsis nudiflora K. Schum. in Engl. & Prantl, Nat. Pflanzenf. IV(4): 122. 1891 [nom. illeg.] Ξ Uragoga acuifolia (C. Wright) M. Gómez, Dicc. Bot. Nom. Vulg. Cub. Puerto-Riquenos 88. 1869 .

Typus: CUBA: Yateras, 1856-1857, Wright 254 (holo-: GH, not found; iso-: BR [BR0000005315147] image seen, G [G00300179, G00300180, G00300181]!, GOET [GOET010376] image seen, MO-2092560!, MO-2092561!, NY [NY00115272, NY00132245] images seen, P [P02285213] image seen, US-74111 image seen) (Fig. 2) .

Notes. – This species is found in eastern Cuba (LIOGIER, 1963). It has been assumed by various authors that the holotype of Margaritopsis acuifolia is among Wright’s materials at GH, but his specimen numbering is complicated and many of his types need further study.