Vol. 35, pp. 117-124 October 17, 1922 PROCEEDINGS OF THE BIOLOGICAL SOCIETY OF WASHINGTON NEW PLANTS FROM SOUTH AND CENTRAL AMERICA COLLECTED BY WILSON POPENOE. BY S. F. BLAKE. In the course of identification of the specimens collected by Wilson Popenoe during his recent trip to Central and South America for the Office of Foreign Seed and Plant Introduction I have found nine apparently unnamed species. These are described here in order that the names may be available for use in papers to be published elsewhere by Mr. Popenoe on the results of his trip. Tibouchina asperipilis Blake, sp. nov. Shrub 1.3 m. high, much branched; branches terete, densely hispid-pilose, the hairs wide-spreading, about 0.7 mm. long, minutely hispidulous throughout, with blackish base and brownish tip; internodes 1 to 3 cm. long; petioles similarly pubescent, 2 to 4 mm. long; leaf blades ovate or the uppermost suborbicular-ovate, 1 to 2.8 cm. long, 1 to 1.6 cm. wide, acute, at base broadly rounded or slightly cordate, minutely serrulate, above dark green, bullate, densely pilose-setose with ascending yellowish-white hairs with adnate bases, beneath paler green, densely spreading-hispid-pilose and hispidulous along all the veins and veinlets, essentially glabrous between them, 5-pUnerved or obscurely 7-plinerved (the lateral nerves shortly coalescent at base), the veins and veinlets impressed above, foveo-late-reticulate beneath; cymes 3-flowered, on mostly paired terminal branchlets, subtended by 2 free bracts 7 mm. long or less; pedicels 1 to 4 mm. long; calyx 2-bracteolate at base, the bracteoles oblong, about 2 mm. long, deciduous; calyx tube campanulate, 7 to 8 mm. long, densely setose-pilose with subappressed or ascending hairs, the lobes 5, lance-ovate, 8 to 10 mm. long, strigose and cilia te, contracted near middle, with acute 3-nerved herbaceous tips, persistent; petals 5, "purple, " obovate, ciliate, 1.5 cm. long; stamens 10, alternately unequal, glabrous throughout, the filaments 8 and 12 mm. long, the subulate beaked anthers 7 and 9 mm. long, the free por-tions of the connectives 0.5 and 2.8 mm. long, with 2 large rounded golden lobes at base; ovary strigose at apex, 5-celled, shortly 5-lobed. Type in the U. S. National Herbarium, no. 1067084, collected in open 26— Proc. Biol. Soc. Wash., Vol. 35, 1922. (117) ^ *
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