Acer ACERACEAE-HIPPOCASTANACEAE Aescvlus 



VIII-IX. China; locally in An., Che., Hun., Hup., Ki. Woodland. 



6. Acer sinense Pax (R.M. 577). Tree, to 15 m.; fls. IV-V; fr. many, in panicles, 

 VIII-IX. China; locally in An., Che., Hun., Hup. Woodland. 



7. Acer long-ipes Franch. ex Rehd. (R.M. 570). Tree, to 25 m.; fls. IV-V; fr. VIII- 

 IX. Central and western China; locally in An., Hup. Woodland. 



8. Acer buergerianum Miq. Trident Maple H^S (San Chio Feng) (R.M. 575). 

 Shrub or tree, to 25 m.; fls. IV-V; fr. VIII-IX. Japan, eastern and central China; 

 locally in An., Che., Ki., Ku. Woodland. Fig. 219. 



9. Acer sinopurpurascens Cheng (Sc.C. 11:230). Tree, to 10m.; fls. purple, IV-V; 

 fr. VIII-IX. China; locally in Che. Woodland. 



10. Acer ginnala Maxim. $£ (Ch'a T'iao; Tea Shoot) (R.M. 575). Shrub or tree, 

 to 10 m.; fls. IV-V; fr. VIII-IX. Central and north China, Manchuria, Japan; 

 locally in An., Che., Hun., Hup., Ki., Ku. Woodland. 



11. Acer cordatum Pax (Sc.C. 11:148). Shrub or tree, to 10 m.; fls. IV-V; fr. VIII- 

 IX. Central and south China; locally in An., Che. Woodland. 



12. Acer palmatum Thunb. Japan Maple £f£/l\tt (Chi Chua Tsu; Fowl's-claw Maple) 

 (R.M. 577). Shrub or tree, to 15 m.; fls. purple, V; fr. IX. Korea, Japan, eastern 

 China; locally in An., Che., Ki., Ku. Woodland. 



A number of varieties and forms of Acer palmatum are grown as ornamental shrubs or 

 trees in the Lower Yangtze Valley. 



13. Acer japonicum Thunb. f. aconitifolium (Meehan) Rehd. (R.M. 579). Shrub or 

 small tree; fls. purple, IV; fr. IX. Introduced from Japan; locally in Ku. Planted, 

 ornamental. 



14. Acer henryi Pax HUftl (San Yeh Tsu; Three-leaved Maple) (R.M. 585). Tree, 

 to 10 m.; fls. IV; fr. IX. Central China; locally in An., Che., Hun., Hup., Ku. 

 Woodland. 



15. Acer negundo Linn. Box Elder ftiiftS (Pai La Tsu; White-wax Maple) (R.M. 

 585). Tree, to 20m.; fls. III-IV; fr. VIII-IX. Introduced from eastern North 

 America; locally in Ku. Planted, ornamental. 



99. HIPPOCASTANACEAE Horse Chestnut Family -tWffift 



(Ch'i Yeh Shu K'o) 



Trees and shrubs with opposite estipulate palmately compound Ivs. and irregular 

 andro-polygamous fls. in terminal panicles: stamens 5-9, inserted on a disk: fr. 

 dehiscent, usually 1-celled and 1-seeded. 3 genera with about 25 species, mostly in 

 North and South America, a few in eastern Asia; 2 genera and 3 species in China. 



1. Aesculus Linn. Horse Chestnut -tr^j^lg (Ch'i Yeh Shu Shu) 

 Deciduous trees or shrubs: calyx tubular. 25 species in North America and 

 Eurasia; 2 in China. (The old Latin name of an oak tree.) 



Key to the Species 



Lfts. stalked: brts. densely pubescent: fr. surface smooth, not 



echinate 1 . A. chinensis 



Lfts. sessile: brts. glabrous: fr. echinate 2. A. hippocastanum 



1. Aesculus chinensis Bunge Chinese Horse Chestnut -fcWffi (Ch'i Yeh Shu; Seven- 

 leaved Tree) (R.M. 588). Tree, to 25 m.; fls. white, V-VI; fr. IX; lvs. palmately 



230 



