川柯 chuan ke

Pasania fangii Hu & W. C. Cheng, Acta Phytotax. Sin. 1: 118. 1951; Lithocarpus glaber (Thunberg) Nakai var. szechuanicus W. P. Fang.

Trees 8-15 m tall. Branchlets ± sulcate, tawny tomentose. Petiole less than 1 cm; leaf blade obovate, elliptic, oblanceolate, or oblong, 5-10(-16) × 2-3(-4) cm, ± thickly papery, abaxially covered with appressed hairs more densely along midvein, base cuneate, margin entire, apex abruptly acute and shortly caudate; secondary veins 8-11 on each side of midvein, abruptly curving apically, obscure near margin; tertiary veins abaxially not visible. Male inflorescences congested at apex of branches, to 12 cm. Female and androgynous inflorescences terminal, to 15 cm. Female inflorescence with rachis 3-4 mm thick; cupules in clusters of ca. 3. Cupule bowl-shaped, 7-9 mm × 1.8-2 cm, enclosing ca. 1/2 of nut, wall 1-1.5 mm thick; bracts imbricate, triangular, squamose, appressed, tawny scurfy. Nut subglobose, glabrous, apex ± narrowed, wall ca. 1 mm thick; scar 1-1.2 cm in diam., concave. Fl. Oct-Dec, fr. Oct-Dec of following year.

* Mixed mesophytic forests; 800-1000 m. Guizhou, SW to W Sichuan