云南朴

Differing from the other two species by having more persistent and subentire leaves, the upper surface dark green and the lower yellowish-green to brownish.

Trees, to 30 m tall, deciduous or sometimes evergreen. Bark grayish white. Branchlets densely yellowish brown pubescent when young, brown, usually glabrescent with age; lenticels few or none. Winter buds brown, 1-3 mm; scales glabrous, margin ciliate. Stipules narrowly lanceolate, caducous, to 7 mm, never enclosing buds. Petiole 6-13 mm, brown, broadly sulcate, puberulous at least near adaxial furrow; leaf blade ovate-elliptic, ovate-lanceolate, or ± rhombic, 5-13 × 2.5-5.5 cm, thickly papery to ± papery, abaxially usually inconspicuously yellowish brown puberulent when young, with hairs scattered on major veins and sometimes tufted in vein axils with age, base oblique with one side ± rounded and other cuneate, margin entire or obtusely serrate, teeth 0-13 on each side, apex acuminate to shortly caudate-acuminate; secondary veins 3 or 4 on each side of midvein. Flowers fascicled, occasionally in racemes of 2 or 3 flowers. Style branches linear, undivided. Infructescences unbranched or seldom forked, rarely showing a small scar from a fallen male flower, 1-3 per leaf axil, rather slender, glabrous or pubescent, 0.8-1.5 cm; fruiting pedicel 1 or 2 × as long as subtending petiole. Drupe yellow to orange when mature, ± globose, 7-8 mm in diam. Stone ± globose, ca. 5 mm in diam., 4-ribbed. Fl. Mar-Apr, fr. Sep-Oct.

A large tree with smooth grey bark. Leaves ovate to ovate-oblong, subentire or serrate from above the middle, caudate-acuminate, base unequal, subcoriaceous, under surface yellow to brownish. Flowers small, pale green, tetramerous. Perianth segments glabrous, margin ciliate. Ovary glabrous on a hairy disc. Drupe glabrous, slightly rugose, prominently 4-ridged.

Distribution: The Himalaya from Swat eastward to Kumaon-Bhutan, Burma, Indo-China, Malaysia.

Himalaya (Kumaun to Bhutan), India, Burma, Indo-China, Malaysia.

W Guangxi, Hainan, Taiwan, Sichuan (Xichang), S Xizang, C, E, and S Yunnan [Bhutan, Bangladesh, India, Indonesia, Myanmar, Nepal, Thailand, Vietnam].

700-2800 m

Fl. Per.: March-April.

Mesophytic mixed forests, valleys, slopes; 700-1500 m.

Celtis fengqingensis Hu ex E. W. Ma; C. formosana Hayata; C. kunmingensis W. C. Cheng & T. Hong; C. salvatiana C. K. Schneider; C. xizangensis E. W. Ma; C. yunnanensis C. K. Schneider.

Celtis tetrandra, called the Nilgiri elm, is a species of flowering plant in the hackberry genus Celtis, family Cannabaceae. It is widely distributed across the Indian Subcontinent, southern China, Southeast Asia, and western Indonesia. It is occasionally available commercially.

Celtis tetrandra är en hampväxtart som beskrevs av William Roxburgh. Celtis tetrandra ingår i släktet Celtis och familjen hampväxter. Inga underarter finns listade i Catalogue of Life.

Celtis tetrandra là một loài thực vật có hoa trong họ Cannabaceae. Loài này được Roxb. mô tả khoa học đầu tiên năm 1824.

四蕊朴（学名：Celtis tetrandra）为榆科朴属的植物。分布于不丹、越南、印度、尼泊尔、缅甸以及中国大陆的西藏、广西、云南、四川等地，生长于海拔700米至1,500米的地区，多生在河谷的林中、林缘、沟谷或山坡灌丛中，目前尚未由人工引种栽培。