196 THE CULTIVATED EVERGREENS 



BB. Form of leaves scale-like or of two kinds (all needle- 

 shaped in vars. of No. 15). 

 c. Margin of leaves minutely denticulate or fringed 

 (under a strong lens). 

 D. Fruit reddish-brown. 



E. Bark scaly: scale-like leaves obtusish, apiculate, 



opposite: fruit 3-4-seeded 9. J. pachyphlwa 



EE. Bark shreddy: scale-like leaves acute or acumi- 

 nate, opposite or ternate: fruit 1-seeded ... .10. J. utahensis 

 DD. Fruit blue or blue-black. 



E. Scale-like leaves usually ternate, conspicuously 



glandular : fruit 2-3-seeded 1 1 . J. oeeidentalis 



EE. Scale-like leaves opposite, rarely ternate, gland- 

 less: fruit usually 1-seeded 12. J. monosperma 



cc. Margin of leaves entire. 



D. Color of fruit brown or purplish-brown. 



E. Scale-like leaves acute; acicular leaves opposite 

 (except on leading shoots). 



F. Seeds of fruit 3-6: leaves ovate 13. J. excelsa 



FF. Seeds of fruit 2-3: leaves lanceolate 14. J. procera 



EE. Scale-like leaves obtuse; acicular leaves often 



ternate: fruit brown, bloomy, 2-3-seeded 15. J. chinensis 



DD. Color of fruit bluish, bloomy. 



E. Plant usually a tree : fruit on erect pedicels. 



F. Branchlets stout and short, thickly set: acic- 

 ular leaves rigid and spiny-pointed 16. J. bermudiana 



FF. Branchlets slender. 



G. Fruit ripening the first season. 



H. Diameter of fruit ^— /^ inch: leaves 

 acute: branchlets very slender, usually 



pendulous: southern tender tree 17. J. lucayana 



HH. Diameter of fruit M~M inch : leaves acute 

 or acuminate: branchlets usually up- 

 right or spreading: northern tree 18. J. virginiana 



GG. Fruit ripening the second season, J^-^s 



inch across 19. J. scopulorum 



EE. Plant a shrub: fruit on curved pedicels, pendu- 

 lous. 

 F. Leaves bluish-green or steel-blue, acute, of 



slight aromatic odor : prostrate shrub 20. J. horizontalis 



FF. Leaves dark or bluish-green, acutish or obtuse, 

 of disagreeable odor when bruised: shrub with 

 usually ascending or spreading branches. . .21. J. Sabina 



Section I. Caryocedrus, Endl. 



Leaves ternate, all needle-shaped, jointed at base, not glandular: winter- 

 buds distinct, scaly: flowers dioecious, axillary: fruit large, ^^-1 inch across; 

 seeds connate into a 3-celled stone. 



1. J. drupacea, Lab ill. Syrian J. Pyramidal tree with narrow head, to 



