Monographs Details: Psidium sartorianum var. yucatanense McVaugh
Authority: Maguire, Bassett. 1969. The botany of the Guayana Highland-part VIII. Mem. New York Bot. Gard. 18: 1-290.

In British Honduras, Yucatan, Peten, and in Cuba, this species is represented by a scantily pubescent or essentially glabrous race with rather long-acuminate leaves of a lanceolate type. Psidium sartorianum var yucatanense is often markedly different from other Mexican and Central American varieties, in which the leaves tend to be elliptic rather than lanceolate, with short-pointed or obtuse leaves. Simhar lanceolateleaved extremes have been cohected a few times in South America, and are here referred to the above variety:

CURAQAO. Near Knip, 16 Aug 1962 (fl), Bro. M . Arnoldo 2268 (MICH, N Y; buds 4.5-5 m m long, pubescent at base, with apical 5-toothed pore 1 m m wide). V E N E Z U E L A . Bolivar: Altiplanicie de Nuria, E of Miamo, toward Hato de Nuria, elev 500-600 m, 16 Jan 1961 (bud), Steyermark 88529 (MICH).

The type of Mitranthes gardneriana Berg, Mart. Fl. Bras. 14(1): 354. 1857 (Alagoas, Gardner 1311, isotype at N Y ) , is indistinguishable from Psidium sartorianum var yucatanense except that the buds are puberulent at base (only), and 6-7 m m long. Leaves ovate, long-acuminate, up to 2 cm wide, 5 cm long; petioles 5 m m long; leaves glabrous, the lower surface convex-glandular; branchlets, peduncles and bases of buds minutely puberulent; buds calyptrate, obovoid-fusiform with prominent apiculum; style hairy, 5 m m long.