杭州榆Ulmus changii Cheng
杭州榆Ulmus changii Cheng
7. 杭州榆（中国高等植物图鉴）
Ulmus changii Cheng in Contr. Biol. Lab. Sci. Soc. China, Bot. Ser. 10: 94. f. 13. 1936; 中国高等植物图鉴 1: 465. 图929. 1972; 傅立国, 东北林学院学报 1980 (3): 15. 1980; 福建植物志 1: 418. 图377. 1982; 四川植物志 3: 146. 1985; 安徽植物志 2: 81. 图337. 1986; 浙江植物志 2: 70. 图2-90. 1992. ——U. sp. Cheng, l. c. 9: 243. 1934. ——U. kunmingensis Cheng var. qingchengshanensis Yi, Acta Phytotax. Sin. 21: 318. f. l. 1983, syn. nov. ——U. uyematsui auct. non Hayata: Hand.-Mazz. Symb. Sin. 7: 100. 1929.
《Flora of China》 Vol. 5 (2003)
Ulmus changii W. C. Cheng
杭州榆 hang zhou yu
Trees, to 20 m tall, d.b.h. to 90 cm, deciduous. Bark dark gray, grayish brown, or grayish black. Branchlets reddish brown, pubescent when young, unwinged. Winter buds dark reddish brown, ovoid-orbicular to ± globose, glabrous. Petiole 2-8 mm, pubescent; leaf blade ovate to ovate-elliptic, 3-11 × 1.7-4.5 cm, abaxially often scabrous and with hairs tufted in forks of secondary veins and sometimes also scattered along major veins, adaxially sparsely appressed villous or scattered hispidulous when young but glabrescent and smooth or ± scabrous with age, base obliquely rounded to obtuse, margin sharply simply serrate or rarely doubly serrate, apex slenderly acuminate to mucronate; secondary veins 9-20(-24) on each side of midvein. Flowers from floral buds or mixed buds. Perianth campanulate, 4- or 5-lobed, margin ciliate. Samaras tan, ± orbicular to narrowly elliptic-orbicular, 1.5-3.5 × 1.3-2.2 cm, pubescent; stalk as long as or slightly shorter than perianth, densely pubescent; perianth persistent. Seed at center or slightly toward base of samara. Fl. Mar-Apr, fr. Mar-Apr.
* Montane forests; 200-1800 m. Anhui, Fujian, Guangxi, Guizhou, Hubei, Hunan, Jiangsu, Jiangxi, Sichuan, Yunnan, Zhejiang.
别名：江南榆;赤皮;铁丁树;
科名：榆科 Ulmaceae
属名：榆属 Ulmus
7. 杭州榆（中国高等植物图鉴）
Ulmus changii Cheng in Contr. Biol. Lab. Sci. Soc. China, Bot. Ser. 10: 94. f. 13. 1936; 中国高等植物图鉴 1: 465. 图929. 1972; 傅立国, 东北林学院学报 1980 (3): 15. 1980; 福建植物志 1: 418. 图377. 1982; 四川植物志 3: 146. 1985; 安徽植物志 2: 81. 图337. 1986; 浙江植物志 2: 70. 图2-90. 1992. ——U. sp. Cheng, l. c. 9: 243. 1934. ——U. kunmingensis Cheng var. qingchengshanensis Yi, Acta Phytotax. Sin. 21: 318. f. l. 1983, syn. nov. ——U. uyematsui auct. non Hayata: Hand.-Mazz. Symb. Sin. 7: 100. 1929.
《Flora of China》 Vol. 5 (2003)
Ulmus changii W. C. Cheng
杭州榆 hang zhou yu
Trees, to 20 m tall, d.b.h. to 90 cm, deciduous. Bark dark gray, grayish brown, or grayish black. Branchlets reddish brown, pubescent when young, unwinged. Winter buds dark reddish brown, ovoid-orbicular to ± globose, glabrous. Petiole 2-8 mm, pubescent; leaf blade ovate to ovate-elliptic, 3-11 × 1.7-4.5 cm, abaxially often scabrous and with hairs tufted in forks of secondary veins and sometimes also scattered along major veins, adaxially sparsely appressed villous or scattered hispidulous when young but glabrescent and smooth or ± scabrous with age, base obliquely rounded to obtuse, margin sharply simply serrate or rarely doubly serrate, apex slenderly acuminate to mucronate; secondary veins 9-20(-24) on each side of midvein. Flowers from floral buds or mixed buds. Perianth campanulate, 4- or 5-lobed, margin ciliate. Samaras tan, ± orbicular to narrowly elliptic-orbicular, 1.5-3.5 × 1.3-2.2 cm, pubescent; stalk as long as or slightly shorter than perianth, densely pubescent; perianth persistent. Seed at center or slightly toward base of samara. Fl. Mar-Apr, fr. Mar-Apr.
* Montane forests; 200-1800 m. Anhui, Fujian, Guangxi, Guizhou, Hubei, Hunan, Jiangsu, Jiangxi, Sichuan, Yunnan, Zhejiang.