Pinus PINACEAE Cedrus 



in their axils short brts. producing the secondary lvs. in fascicles of 2-5, the base of 

 each fascicle being surrounded by sheathing bud scales: ovulate cones bearing two 

 winged seeds on each scale, maturing the second season. About 80 species, through- 

 out the northern hemisphere; 10 or more in China. (The Latin name.) 



Key to the Species 



a. Lvs. 5 in a fascicle, marked on the inner flattened surface with 

 3-4 prominent white stomatic bands. 



Cones 9-14 cm. long, indehiscent: lvs. 6-12 cm. long LP. koraiensis 



Cones 5-10 cm. long, dehiscent: lvs. shorter 2. P. parviflora 



aa. Lvs. 2 or 3 in a fascicle. 



b. Leaves 3 in a fascicle: new bark chalky white 3. P. bungeana 



bb. Leaves 2 in a fascicle. 



c. Winter buds brown or brownish red. 



Lvs. slender, bright green: cones deciduous. 



Leaves 5-12 cm. long : branchlets bloomy A. P. densifiora 



Leaves 15-20 cm. long: branchlets not bloomy 5. P. massoniana 



Lvs. stout, sometimes 3 in a fascicle: cone persistent 



for several years 6. P. tabulaeformis 



cc. Winter buds grayish white: lvs. rigid, deep green 7. P. thunbergii 



1. Pinus koraiensis Sieb. & Zucc. Korean Pine #gfe (Hai Sung; Sea Pine) (R.M. 37). 

 Tree, to 30 m.; fls. V; fr. IX. Introduced from Japan and Korea; locally in Ku. 

 Planted, woodland. 



2. Pinus parviflora Sieb. & Zucc. Japanese White Pine H^fUfiM: (Jih Pen Wu 

 Hsu Sung; Japanese Five-needled Pine) (R.M. 38). Tree, to 30m.; fls. IV; fr. 

 IX. Introduced from Japan; locally in Ku. Planted, woodland. 



3. Pinus bungeana Zucc. Lace -bark Pine g&fe (Pai P'i Sung; White-bark Pine) 

 (R.M.40). Tree, to 30m.; fls. V; fr. VIII. Introduced from northwest China; 

 locally in Ku. Planted, ornamental. 



4. Pinus densifiora Sieb. & Zucc. Japanese Red Pine B^^cfe (Jih Pen Ch'ih Sung) 

 (R.M.40). Tree, to 35 m.; fls. IV; fr. IX; brts. orange-yellow, bloomy. Intro- 

 duced from Japan; locally in Ku. Planted, woodland. 



5. Pinus massoniana Lamb. Masson's Pine MJUfe (Ma Wei Sung; Horse Tail 

 Pine) (R.M. 41). Tree, to 35 m.; fls. IV; fr. X. Southern and central China; 

 locally in An., Che., Ki., Ku. Woodland. Fig. 36. 



6. Pinus tabulaeformis Carr. Chinese Pine f&fii (Yu Sung; Pitch Pine) (R.M.43). 

 Tree, to 25 m.; fls. IV; fr. IX. Northern, central and western China; locally in 

 An., Ki. Mountain slopes above 1,000 m. 



7. Pinus thunbergii Pari. Japanese Black Pine Bi&HtS (Jih Pen Hei Sung) 

 (R.M.43). Tree, to 30 m.; fls. IV; fr. IX. Introduced from Japan; locally in Ku. 

 Planted, woodland. 



3. Cedrus Trew Cedar S'feS (Hsiieh Sung Shu) 

 Lvs. linear, stiff and sharp-pointed, evergreen, scattered or in fascicles of more 

 than 10: the 2-ovuled cone scales subtended by small bracts: cones erect, ovoid to 

 oblong, 7-10 cm. long. 4 species, in Asia and North Africa; one planted in China. 

 (The Greek name.) 



1. Cedrus deodara (Roxb.) Loud. Deodar Cedar UK (Hsiieh Sung; Snow Pine) 

 (R.M.34). Tree, to 50 m.; fls. XII; lvs. densely fascicled on the spurs. Intro- 



63 



