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

This, by far the largest genus of Myrtaceae in tropical America, is represented in our area mostly by lowland species of savannahs and river-margins, or forest trees of foothills and low mountains. Few of the species are high-montane, and only a few, e.g., Eugenia biflora, E . florida, E . punicifolia, E . tapacumensis, range widely through different geographical provinces. O n the North American continent there are perhaps 75 local species, and another 100 species in the West Indies. Presumably there are at least 100 additional species in South America north of the Amazon, and considerably more than this in the area in central and southeastern Brazil where the genus is best represented. A few species range as far south as Uruguay and northern Argentina. But few occur in the Andes from Ecuador southward, where Eugenia is mostly replaced by Myrcianthes. As far as known there is no native Eugenia in Chile.

Three exotic species sometimes referred to Eugenia and sometimes to Syzygium are widespread in tropical America as cultivated plants and as escapes. These are Eugenia cumini L. {Syzygium Skeels), E . malaccense L. {Syzygium Merr. & Perry), and E. jambos L. (Syzygium Alston). They are not described nor contrasted in this paper, but a full account of them is given by Amshoff (Fl. Suriname 3 ( 2 ) : 99-104. 1951). The last two are obviously eugenioid, but E. cumini is sometimes mistaken for a species of Calyptranthes because of the panicle-like inflorescence and the fact that the corolla falls as a calyptra from the almost lobeless calyx.