Rondeletia heterochroa Urb.

Rondeletia heterochroa Urban, Symb. Ant. 7: 394. 1912
Branches terete, brown, elenticellate or obscurely lenticellate, shortly sericeous-pilose when young, the internodes 1-2 cm. long; stipules triangular or lanceolate, 2 mm. long, acuminate, erect, sericeous; leaves opposite, the petioles 1.5-3 mm. long, the blades ovate or elliptic, 2.5-4 cm. long, 1-2 cm. wide, acute or subobtuse at the base, acuminate at the apex, thickcoriaceous, lustrous, olivaceous above and glabrous or nearly so, paler beneath, thinly appressedpilosulous, the costa impressed above, the lateral veins 3 or 4 on each side, ascending at an angle of 45°-50°; flowers solitary or few at the ends of short branchlets, sessile or on pedicels 1.5 mm. long; bracts foliaceous; hypanthium short-sericeous; calyx-lobes 4-6, linear or oblanceolate, 2-4.5 mm. long, acute; corolla densely pilosulous outside, the tube cylindric, 7 mm. long, scarcely 1 mm. thick, annular-thickened in the throat, the lobes suborbicular, one third as long as the tube or shorter, pilosulous within; anthers included, the filaments about 0.7 mm. long; capsule globose, about 4 mm. in diameter.
Type locality: Province of Barahona, Santo Domingo. Distribution: Known only from the type locality.