Quercus FAGACEAE-ULMACEAE Ulmus 



Lvs. lanceolate to oblong-lanceolate, serrate glabrous, tending 



to darken in drying 10. Q. myrsinaefolia 



Frtg. cup of appressed scales: lvs. 2.5-5 cm. long, serrate, 



acute or obtuse at tip 11. Q. phillyreoides 



1. Quercus variabilis Blume feftM (Shuan P'i Li; Cork Bark Oak) (R.M.160). 

 Tree, to 25m.; fls. V; fr. VII. North China, Korea, Japan; locally in An., 

 Che., Hup., Ki., Ku. Woodland. Fig. 57. 



2. Quercus acutissima Carruth. (Q. serrata S. & Z.) J^f^ (Ma Li; Fibrous Oak) 

 (R.M.160). Tree, to 15m.; fls. IV-V; fr. VIII-IX. Eastern Asia; locally in An., 

 Che., Ki., Ku. Forest tree. 



3. Quercus glandulifera Blume (Q. serrata Thunb.) tfejtf (Pao Shu; Drum-stick Tree) 

 (R.M.173). Shrub or tree, to 15m.; fls. IV; fr. VIII-IX. Eastern Asia; locally 

 in An., Che., Hun., Hup., Ki., Ku. Brushland and woodland. 



4. Quercus chenii Nakai 'hfllT; (Hsiao Yeh Li; Small-leaved Oak) (Lee 351). Tree, 

 to 20m.; fls. IV; fr. IX-X. China; locally in An., Che., Ki. Woodland. 



5. Quercus stewardii Rehd. (Lee 377). Shrub or tree, to 10 m.; fr. IX. East-central 

 China; locally in An. Mountain brushland. 



6. Quercus fabri Hance White Oak £j$ (Pai Li) (R.M.173). Tree, to 15 m.; fls. 

 IV; fr. IX. China; locally in An., Che., Hun., Hup., Ki., Ku. Woodland. 



7. Quercus aliena Blume $!jf (Hu Li) (R.M.173). Tree, to 20m.; fls. IV; fr. VIII- 

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



8. Quercus dentata Thunb. ffjff (Hu Shu) (R.M.173). Tree, to 25m.; fls. IV; fr. 

 X. Japan, Korea, China; locally in An., Ki. Mixed woods. 



9. Quercus glauca Thunb. Hard Evergreen Oak ffffljf (Ch'ing Kang Li) (R.M.lst 

 165). Tree, to 15m.; fls. IV; fr. X. Japan, China, The Himalayas; locally in 

 An., Ki., Ku. Forest tree. 



10. Quercus myrsinaefolia Blume Evergreen Oak #^ (Ch'ing K'ao) (R.M.155.) 

 Tree, to 18m.; fls. IV; fr. X. Japan, China; locally in An., Che., Ku. Forest 

 tree. 



11. Quercus phillyreoides A. Gray (R.M.164). Shrub or tree, to 10 m.; fls. IV-V; 

 fr. IX-X. Eastern and central China; locally in Che., Ki. Woodland. 



41. ULMACEAE Elm Family Hfa& (Yii K'o) 



Trees or shrubs tvith ivatery sap: lvs. alternate, usually oblique at the base, with 

 deciduous stipules: fls. perfect or monoecious; perianth segments usually more or 

 less united; style 2-parted: fr. a samara, nutlet, or drupe. 15 genera with 150 

 species, widely distributed; 8 genera and 35 species in China. 



Key to the Genera 



A. Fruit winged. 



Lvs. pinnately-veined. 



Fr. a membranous winged samara: branches not thorny 1. Ulmus 



Fr. an obliquely-winged nutlet : branches thorny 2. Hemiptelea 



Lvs. 3-nerved : fruit a winged nutlet 3. Pteroceltis 



A A. Fr. a drupe. 



B. Lvs. evergreen, 3-nerved or pinnately-veined 4. Trema 



BB. Lvs. deciduous. 



Lvs. pinnately-veined: brs. not thorny: fr. a small oblique 



drupe, not winged 5. Zelkova 



82 



