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FOC | Family List | FOC Vol. 7 | Lauraceae | Litsea

72. Litsea acutivena Hayata, Icon. Pl. Formosan. 5: 163. 1915.

尖叶木姜子 jian ye mu jiang zi

Actinodaphne acutivena (Hayata) Nakai; A. nakaii (Hayata) T. S. Liu & J. C. Liao; Litsea elongata (Nees) J. D. Hooker var. acutivena (Hayata) S. S. Ying; L. nakaii Hayata; Tetradenia acutivena (Hayata) Nemoto; T. nakaii (Hayata) Makino & Nemoto.

Evergreen trees, up to 7 m tall. Young branchlets densely yellow-brown villous and becoming subglabrous. Leaves alternate or clustered toward apex of branchlet; petiole 6-12 mm, densely hairy like young branchlets; leaf blade lanceolate, oblanceolate, or oblong-lanceolate, 4-11 × 2-4 cm, yellow-brown pubescent abaxially, more densely so along veins, glabrous adaxially when young, except for hairy midrib, pinninerved, lateral veins 9 or 10 pairs, midrib impressed adaxially, transverse veinlets conspicuous abaxially, base cuneate, apex acute or shortly acuminate. Umbels clustered toward apex of branchlet, male umbel 5- or 6-flowered; peduncle ca. 3 mm. Male flowers: perianth segments 6, long elliptic; fertile stamens 9; filaments hairy, of 3rd whorls each with 2 peltate glands at base; rudimentary pistil small. Fruit ellipsoid, 12-20 × 10-12 mm, black at maturity, seated on cup-shaped perianth tube; fruiting pedicel ca. 1 cm. Fl. Jul-Aug, fr. Dec-Feb.

Dense forests on mountains; 500-2500 m. Fujian, Guangdong, Guangxi, Guizhou, Hainan, S Jiangxi (Dayu), Taiwan [Cambodia, Laos, Vietnam].


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