18. Mendoncia litoralis Leonard, sp. nov. FIGURE 10 Frutex volubilis, caulibus subteretibus, sursum dense pilosis, deor- sum subglabrescentibus, pilis sursum incurvo-adpressis, brunneis; lamina foliorum ovata vel elliptica, apice acuminata, basi obtusa vel subacuta, supra minute hirsuta vel subglabrescens, pilis e basi stellata orientibus instructa, subtus hirsuta, pilis adpressis brunneis, costa et venis aliquanto prominentibus; petioli dense hirsuti, pilis adpressis vel paulo patentibus; flores solitarii, axillares; pedicelli dense hirsuti, pilis patentibus vel retrorsis, brunneis; bracteae ovatae, apice rotundatae et apiculatae, basi rotundatae, intus glabrae, extus hirsutae, pilis patenti- bus; drupa orbiculata, glabra.  Vines; stems subterete, densely hirsute above to glabrate below, the hairs straight, closely and upwardly appressed, yellowish brown, about 1 mm. long; leaf blades ovate to elliptic, 6 to 10 cm. long, 3.5 to 6.5 cm. wide, abruptly acuminate at tip, obtuse or acutish at base, the upper surface minutely hirsute or subglabrous, more or less rugose, roughened by the small obscure stellate hair bases, the lower surface appressed-hirsute, the hairs of the costa and lateral veins (4 or 5 pairs) about 1 mm. long, those of the interspaces about 0.5 mm. long, their bases raised and stellate but not so prominently as those of the hairs of the upper surface, all yellowish brown, the venation of both surfaces rather prominent; petioles 1 to 2 cm. long, densely hirsute, the hairs appressed or slightly spreading, about 1 mm. long; flowers usually solitary in the axils of the leaf blades; pedicels about 1.5 cm. long, densely pilose, the hairs spreading or retrorsely spreading, to 1.5 mm. long, yellowish brown; bracts ovate, 15 to 17 mm, long, 9 to 10 mm. wide, rounded and minutely apiculate at tip, rounded at base, glabrous within, hirsute without, the hairs spreading, 1 to 1.5 mm. long, yellowish brown, arising from rounded scalelike bases; corollas not seen; ovary glabrous; style about 12 mm. long, glabrous; drupe orbicular, 1.8 cm. long, 1.4 cm. broad, 5 mm. thick, glabrous. Type in the U. S. National Herbarium, No. 1853796, collected at Silva, on the Río Cajambre, near the Pacific coast, Department of El Valle, Colombia, altitude 5 to 80 meters, May 5 to 15, 1944, by J. Cuatrecasas (No. 17529). In general appearance Mendoncia litoralis strongly resembles M. gracilis, but it can be readily separated by the spreading pubescence of pedicels and bracts.