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FOC | Family List | FOC Vol. 17 | Verbenaceae | Premna

37. Premna scoriarum W. W. Smith, Notes Roy. Bot. Gard. Edinburgh. 12: 219. 1920.

腾冲豆腐柴 teng chong dou fu chai

Trees 20 m tall. Branchlets black when young, becoming gray-brown, terete, with sparse linear lenticels. Petiole 1.5-3.5 cm; leaf blade narrowly elliptic, ovate-lanceolate, or ovate, 10-15(-21) X 5-9(-10) cm, thickly papery, both surfaces glabrous and with elevated veins, abaxially green, adaxially shiny and dark green but black when dry, veins 6 or 7 pairs. Inflorescences lax corymbs, 8-10 X 14 cm, 3-5 dichotomously branched; peduncle ca. 3 cm, sparsely puberulent; bracts linear-lanceolate, ca. 5 mm, sparsely puberulent. Calyx campanulate, ca. 1 mm, 4-dentate to middle, outside puberulent; teeth oblong, subequal, apex obtuse. Fruit dark green, oblong-obovate, 2.5-3(-4) mm.

Dense forests; 1300-1700 m. W Yunnan [Myanmar].


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