雷公鹅耳枥 lei gong e er li

Trees 10-20 m tall; bark dark gray. Branchlets brown, glabrous. Petiole (1-)1.5-3 cm, glabrous, rarely sparsely pubescent; leaf blade elliptic, oblong, or ovate-lanceolate, 6-11 × 3-5 cm, abaxially sparsely villous along midvein and lateral veins, sometimes bearded in axils of lateral veins, adaxially glabrous, base subcordate, rarely rounded-cuneate or subrounded, margin doubly mucronate serrate or setiform serrate, apex acuminate, acute, or caudate; lateral veins 12-15 on each side of midvein. Female inflorescence 5-15 × 2.5-3 cm; peduncle slender, 1.5-4 cm, sparsely pubescent; bracts semiovate-lanceolate, 1.5-2.5(-3) cm, subglabrous, unequally 3-lobed, middle lobe semiovate-lanceolate or oblong, straight or subfalcate, outer margin coarsely dentate, with ovate, flattened basal lobe ca. 3 mm, inner margin entire, with ovate, inflexed basal lobe 3-3.5 mm, apex acute or obtuse; veins 4, reticulate veins prominent. Nutlet broadly ovoid, 3-4 × 2.5-3.5 mm, glabrous except villous at apex, sparsely resinous glandular, prominently ribbed. Fl. Apr-Jun, fr. Jul-Sep. 2n = 16.

Subtropical broad-leaved forests; 400-2000 m. Anhui, Fujian, N Guangdong, Guangxi, Guizhou, Hubei, Hunan, Jiangsu, Jiangxi, Sichuan, Xizang, Yunnan, Zhejiang [Bhutan, India, Kashmir, Myanmar, Nepal, Sikkim, Thailand, Vietnam].

Lower Taxa

• Carpinus viminea var. chiukiangensis Hu
• Carpinus viminea var. viminea