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FOC | Family List | FOC Vol. 11 | Aceraceae | Acer

72. Acer morrisonense Hayata, J. Coll. Sci. Imp. Univ. Tokyo. 30(1): 66. 1911.

玉山枫 yu shan feng

Acer rubescens Hayata.

Trees to 20 m tall. Bark yellowish gray, smooth. Branchlets glabrous; winter buds ellipsoid, outer scales glabrous. Leaves deciduous; petiole 5-7 cm, glabrous; leaf blade suborbicular-ovate, 8-10 × 6-8 cm, papery, adaxially glabrous, 5-veined at base abaxially, lateral veins 5 or 6 pairs, base nearly truncate or subcordate, margin doubly serrate with coarse acute teeth, shallowly 5-lobed, to 1/5 width of blade; middle lobe shortly ovate, apex acuminate; lateral and basal lobes small, apex acute or obtuse. Flowers unknown. Infructescence racemose, 15-flowered. Fruiting pedicel 7-10 mm, slender, glabrous. Fruit yellowish brown, small; nutlets subellipsoid, ca. 6 × 4 mm; wing including nutlet 1.8-2.3 cm × 6-7 mm, wings spreading obtusely. Fl. Mar-Apr, fr. Oct.

● Mixed forests; 1800-2200 m. E and S Taiwan.


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