Description
(
İngilizce
)
eFloras tarafından sağlandı
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.
- lisans
- cc-by-nc-sa-3.0
- telif hakkı
- Missouri Botanical Garden, 4344 Shaw Boulevard, St. Louis, MO, 63110 USA
Distribution
(
İngilizce
)
eFloras tarafından sağlandı
Anhui, Fujian, Guangxi, Guizhou, Hubei, Hunan, Jiangsu, Jiangxi, Sichuan, Yunnan, Zhejiang.
- lisans
- cc-by-nc-sa-3.0
- telif hakkı
- Missouri Botanical Garden, 4344 Shaw Boulevard, St. Louis, MO, 63110 USA
Habitat
(
İngilizce
)
eFloras tarafından sağlandı
* Montane forests; 200-1800 m.
- lisans
- cc-by-nc-sa-3.0
- telif hakkı
- Missouri Botanical Garden, 4344 Shaw Boulevard, St. Louis, MO, 63110 USA
Ulmus changii
(
İngilizce
)
wikipedia EN tarafından sağlandı
Ulmus changii, occasionally known as the Hangzhou elm, is a small deciduous tree found across much of China in forests at elevations of up to 1800 m.[1] Owing to its increasing scarcity, U. changii was added to the Hainan Province Protected Plants List in 2006.
Description
The tree can reach a height of 20 m with a trunk of about 0.9 m d.b.h; the bark is dark grey. The leaves are generally ovate, < 11 cm long, glabrescent and smooth when mature. The wind-pollinated apetalous flowers are produced on second-year shoots in March - April, the samarae are almost orbicular, < 35 mm in diameter.[1]
Pests and diseases
Ulmus changii was found to be among the least suitable elms for feeding and reproduction by the adult elm leaf beetle Xanthogaleruca luteola [2] and highly preferred for feeding by the Japanese beetle Popillia japonica[3] in the United States.
Cultivation
The species is extremely rare in cultivation beyond China, although in the US the species is rated hardy enough for USDA zone 5. There are no known cultivars of this taxon, nor is it known to be in commerce.
Subspecies & varieties
Two varieties are recognized: var. changii L.K.Fu, and var. kunmingensis W.C.Cheng.
Etymology
The tree is named for S. S. Chang, the Chinese botanist who identified the species in 1936.
Accessions
- North America
- Asia
- Europe
Nurseries
- Europe
References
-
^ a b Fu, L., Xin, Y. & Whittemore, A. (2002). Ulmaceae, in Wu, Z. & Raven, P. (eds) Flora of China, Vol. 5 (Ulmaceae through Basellaceae). Science Press, Beijing, and Missouri Botanical Garden Press, St. Louis, USA. ISBN 1-930723-40-7 [1]
-
^ Miller, F.; Ware, G. (2001). "Resistance of Temperate Chinese Elms (Ulmuss spp.) to Feeding of the Adult Elm Leaf Beetle (Coleoptera: Chrysomelidae)". Journal of Economic Entomology. 94 (1): 162–166. doi:10.1603/0022-0493-94.1.162. PMID 11233108. S2CID 42980569.
-
^ Miller, F.; Ware, G.; Jackson, J. (2001). "Preference of Temperate Chinese Elms (Ulmuss spp.) for the Feeding of the Japanese Beetle (Coleoptera: Scarabaeidae)". Journal of Economic Entomology. 94 (2): 445–448. doi:10.1603/0022-0493-94.2.445. PMID 11332837. S2CID 7520439.
- lisans
- cc-by-sa-3.0
- telif hakkı
- Wikipedia authors and editors
Ulmus changii: Brief Summary
(
İngilizce
)
wikipedia EN tarafından sağlandı
Ulmus changii, occasionally known as the Hangzhou elm, is a small deciduous tree found across much of China in forests at elevations of up to 1800 m. Owing to its increasing scarcity, U. changii was added to the Hainan Province Protected Plants List in 2006.
- lisans
- cc-by-sa-3.0
- telif hakkı
- Wikipedia authors and editors
Ulmus changii
(
Vietnamca
)
wikipedia VI tarafından sağlandı
Ulmus changii là một loài thực vật có hoa trong họ Ulmaceae. Loài này được W.C. Cheng miêu tả khoa học đầu tiên năm 1936.[1]
Chú thích
Liên kết ngoài
- lisans
- cc-by-sa-3.0
- telif hakkı
- Wikipedia tác giả và biên tập viên
Ulmus changii: Brief Summary
(
Vietnamca
)
wikipedia VI tarafından sağlandı
Ulmus changii là một loài thực vật có hoa trong họ Ulmaceae. Loài này được W.C. Cheng miêu tả khoa học đầu tiên năm 1936.
- lisans
- cc-by-sa-3.0
- telif hakkı
- Wikipedia tác giả và biên tập viên
杭州榆
(
Çince
)
wikipedia 中文维基百科 tarafından sağlandı
二名法 Ulmus changiiCheng 变种
- 杭州榆 U. c. var. changii
-
昆明榆 U. c. var. kunmingensis
杭州榆（学名：Ulmus changii）是榆科榆属的植物，是中国的特有植物。分布于中国大陆的湖北、四川、安徽、福建、江西、浙江、湖南、江苏等地，生长于海拔200米至800米的地区，一般生长在山坡、谷地和溪旁之阔叶林中，目前尚未由人工引种栽培。
异名
- Ulmus changii Cheng var. kunmingensis (Cheng) Cheng et L. K. Fu
- Ulmus kunmingensis Cheng
参考文献
- 昆明植物研究所. 杭州榆（原变种）. 《中国高等植物数据库全库》. 中国科学院微生物研究所. [2009-02-25]. （原始内容存档于2016-03-05）.
这是一篇與
植物相關的
小作品。你可以通过
编辑或修订扩充其内容。
杭州榆: Brief Summary
(
Çince
)
wikipedia 中文维基百科 tarafından sağlandı
杭州榆（学名：Ulmus changii）是榆科榆属的植物，是中国的特有植物。分布于中国大陆的湖北、四川、安徽、福建、江西、浙江、湖南、江苏等地，生长于海拔200米至800米的地区，一般生长在山坡、谷地和溪旁之阔叶林中，目前尚未由人工引种栽培。
Bài viết liên quan đến bộ Hoa hồng này vẫn còn sơ khai. Bạn có thể giúp Wikipedia bằng cách mở rộng nội dung để bài được hoàn chỉnh hơn. 
这是一篇與植物相關的小作品。你可以通过编辑或修订扩充其内容。 
