Monographs Details: Eugenia cachoeirensis O.Berg
Authority: Maguire, Bassett. 1969. The botany of the Guayana Highland-part VIII. Mem. New York Bot. Gard. 18: 1-290.

This plant as far as known is confined to the region of the upper Rio Negro and the Rio Casiquiare. It is a riverbank tree with coriaceous obtuse leaves that dry pale brown beneath, and flowers rather numerous and sessile in axillary glomerules. BRAZIL. Amazonas: S. Gabriel da Cachoeira, ad flumen Rio Negro, Spruce 2274 (M!, type; G; K; P; Field Mus. neg. 19921). V E N E Z U E L A . Amazonas: Around Lago Paciba, Rio Paciba, elev 130 m, 3 Apr 1953, Maguire & Wurdack 34820 (fl, M I C H ) , 34821 (fr, M I C H ) ; Rio Guainia, between the mouth and Comunidad, elev 100 m, 12 Apr 1953 (fl), Maguire & Wurdack 35543 (MICH).

Very similar if not conspecific is Eugenia lingua Berg, Mart. Fl. Bras. 14(1): 266, 1857. The type is Spruce 1161, "in vicinia oppidi Barra do Rio Negro" (M!; isotypes F, G; Field Mus. neg. 19960). When in 1954 I studied the types of this species and E. cachoeirensis I could find no differences that seemed significant. The leaves in E. lingua are smaller, and the pedicels up to about 3 m m long.