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4. Huodendron Rehder, J. Arnold Arbor. 16: 341. 1935.

山茉莉属 shan mo li shu

Trees or shrubs, deciduous. Winter buds naked. Leaves alternate; stipules absent; leaf blade margin entire or serrate. Inflorescences terminal or axillary, paniculate or subcorymbose; bracts and bracteoles small, early deciduous. Flowers small, bisexual. Calyx tube adanate to ovary, 5-toothed. Petals 5, bases slightly coherent, free, imbricate or valvate, revolute after anthesis. Stamens 8--10, exserted; filaments slightly adnate to petals; anthers oblong, connective produced beyond locule into a conspicuous 2- or 3-dentate appendage. Ovary half inferior, 3- or 4-locular; ovules numerous per locule, erect, placentation axile. Fruit capsular, ovoid, 1/3--2/3 surrounded by calyx, 3- or 4-locular, loculicidally dehiscent. Styles 3--5, partly connate; stigma capitellate. Seeds numerous, flattened; seed coat thin, reticulate, fringed on both sides; embryo straight.

Four species: E Asia; three species in China.

1 Leaves abaxially densely gray tomentose, adaxially glabrous   3 Huodendron tomentosum
+ Leaves glabrous or only veins sparsely pubescent.   (2)
2 (1) Inflorescences and fruit glabrous; styles connate to middle; leaves glabrous; reticulate veins conspicuously raised on both surfaces when dry   1 Huodendron tibeticum
+ Inflorescences and fruit gray stellate tomentose; styles connate almost to apex; leaves pubescent only on veins; reticulate veins raised only on abaxial surface   2 Huodendron biaristatum

Lower Taxa


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