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

42. Premna laevigata C. Y. Wu, Fl. Yunnan. 1: 434. 1977.

平滑豆腐柴 ping hua dou fu chai

Shrubs 2-3 m tall. Branchlets purple-brown when young but becoming brown, terete, striate, glabrous, with sparse small yellow lenticels, mealy. Petiole 2.7-3 cm, glabrous; leaf blade ovate-oblong to elliptic, 7-14 X 3-7 cm, leathery, glabrous, abaxially yellow-green, adaxially brownish green to tea green, base cordate to subrounded, margin serrate above middle, apex acuminate to caudate-acuminate; veins 6 or 7 pairs, midvein abaxially raised and adaxially slightly compressed, reticulate veins obscure. Inflorescences 3-8 2-3.5 cm; peduncle 1-1.5 cm; bracts linear-lanceolate, ca. 3 mm, easily deciduous. Calyx 3-3.5 mm, 2-lipped, lips entire or lower lip emarginate and upper lip with 3 minute emergences. Corolla 3-6 mm, 2-lipped, lower lip 3-lobed, upper lip entire and larger than lower lip, villous in throat. Stamens shorter than corolla; filaments glabrous. Ovary globose, glabrous. Style ca. 4 mm, glabrous. Fruiting calyx tuberculate. Fruit dark brown, 6 X 4-4.5 mm. Fr. Sep-Nov.

* Mixed forests; 500-600 m. Yunnan (Mengla).


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