CHAPTER XIII: THE CYPRESSES 



Coniferous trees having pyramidal habit. Very populai 

 for ornamental planting. Some species have considerable lumber 

 value. All have light, graceful leaf spray and small, globular, 

 woody cones. Wood usually soft. 



KEY TO GENERA 



A. Leaves, minute, scaly, thick, evergreen. 

 B. Seeds under each cone scale many. 



I. Genus Cupressus, Linn. 

 BB. Seeds under each cone scale i to 5. 



2. Genus CHAMi^CYPARis, Spach. 

 AA. Leaves linear, deciduous. 3. Genus Taxodium, Rich. 



I. Genus CUPRESSUS, Linn. 



Resinous trees with naked buds, stout, ascending branches, 

 which become horizontal. Leaves minute, scale-like, 4-ranked. 

 Flowers minute, monoecious, yellowish. Fruit biennial, globular, 

 woody cones. 



KEY TO SPECIES 



A. Branchlets stout. 



B. Foliage dark green. (C macrocarpa) Monterey cypress 

 BB. Foliage pale green; twigs glaucous. 



(C Ari{onica) Arizona cypress 

 AA. Branchlets slender; foliage dark green. 



B. Leaves obscurely glandular. (C. Goveniana) cypress 

 BB. Leaves plainly glandular. (C. Macnabiana) cypress 



Monterey Cypress {Cupressus macrocarpa, Gord.) A broac 

 pyramidal tree when young, 40 to 75 feet high, becoming gnarled 

 and flat topped when old. Trunk short, 3 to 6 feet thick. Bark 

 brown to pale grey, broken into irregular ridges, covered with elon- 

 gated, persistent scales. Wood brown, hard, strong, heavy, 

 durable, fine grained. Leaves ovate, minute, closely appressed 

 to twigs. Flowers minute, moncEcious, separated, terminal, yel- 

 low. Fruit clustered, erect, globular cones, of fev/ woody scales, 



96 



