44 Illustrations of Conifers. 



CUPRESSUS ARIZONICA (Greene). 



Gardeners' Chronicle, Vol X. p. 864 (1891). 



Veitch's Man. Conif. ed. 2, p. 201 (1900). 



Trees of Great Britain and Ireland, Vol. V. p. 1188 (1910). 



A tree attaining in Arizona a height of 70 feet with a girth of 

 12 feet. Bark reddish-brown, separating into long persistent flakes. 

 Branches smooth, purplish-brown, often glaucous. Branchlets ir- 

 regularly disposed, bi-pinnate ; the ultimate divisions quadrangular. 

 Leaves grayish or glaucous, in four ranks, appressed, ovate-Jicute, 

 ,'o to ^ inch long, marked on the back with a glandular resinous 

 pit. 



Cones shortly stalked, globose, \ to inch in diameter, 

 glaucous ; scales 6 to 8 with prominent processes. Seeds eight to 

 ten on each scale with a few inconspicuous resin-vesicles. 



This species is probably a northern form of C. lusitanica; but 

 is readily distinguished by its greyish foliage, and the pits on the 

 leaves exuding a whitish resin. 



Cupressus arizonica which occurs wild in the mountains of 

 Arizona and in northern Mexico, was discovered in 1880 by Greene 

 near Clifton in eastern Arizona forming pure forests of consider- 

 able extent at 5,000 to 6,000 feet altitude. It was introduced 

 into England in 1882 from the Arnold Arboretum. 



