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FOC | Family List | FOC Vol. 4 | Fagaceae | Lithocarpus

22. Lithocarpus cleistocarpus (Seemen) Rehder & E. H. Wilson in Sargent, Pl. Wilson. 3: 205. 1916.

包槲柯 bao guo ke

Trees 5-10 m tall. Branchlets of current year sulcate. Petiole 1-2.5 cm; leaf blade ovate-elliptic to oblong, 9-16 × 3-5 cm, leathery, abaxially with adherent, waxy scalelike trichomes, base attenuate and decurrent on petiole, margin entire, apex acuminate; secondary veins 7-10 on each side of midvein, abruptly curving apically, obscure near margin; tertiary veins abaxially slender, evident, laxly spaced. Male inflorescences solitary in a paniculate cluster; rachis with lamellate waxy scalelike trichomes. Female and androgynous inflorescences with cupules in clusters of 3-5 scattered on rachis. Infructescences 7-10 cm; rachis 4-5 mm thick. Cupule subglobose or turbinate, 2-2.5 cm in diam., enclosing 2/3 to most of nut, apically flat, wall ca. 1.5 mm thick at middle; basal bracts fused to wall and reduced to scars, apically triangular, appressed, and covered with tawny or grayish brown, minute, waxy scalelike trichomes. Nut turbinate, sparsely puberulent or glabrous, apex slightly concave, ± flat, or arcuate-convex; scar covering 1/2-3/4 of nut, convex. Fl. Jun-Oct, fr. summer to winter of following year.

* Broad-leaved evergreen forests, mixed mesophytic forests; 1000-2400 m. Anhui, Fujian, N Guizhou, W Hubei, Hunan, Jiangxi, S Shaanxi, Sichuan, NE Yunnan, Zhejiang.

1 Young leaves usually with oily resins when dry; nuts hairy   22a var. cleistocarpus
+ Young leaves without oily resins when dry; nuts glabrous   22b var. omeiensis

Lower Taxa


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