354: THE BOOK OF EVERGREENS. 



16. sempervirenSj Linnwus. UPRIGHT CYPRESS. 

 This is the beautiful species so common along the Medi- 

 terranean, and especially through Italy and Turkey, where 

 it forms an erect, fastigiate column of the darkest shade 

 of green, and about 50 feet in height. It reminds one of 

 an evergreen Lombardy Poplar, but will not stand our 

 climate. 



Var. horizoiltalis. Miller. This differs from the species 

 in having horizontal branches, and in its spreading charac- 

 ter. It is so different in appearance as to lead many culti- 

 vators to class it as a distinct species. Both this and the 

 true form have a number of synonyms. 



Var. rariegata, Knight, and var, moustrosa, Hort., 

 are mentioned by Gordon; the one with variegated 

 leaves, and the other with a Thuja-like aspect and robust 

 habit. 



Var. cerciformis, Carriere. This curious and remark- 

 able variety was grown at Cognac, France, about 24 years 

 since. It is perhaps the most fastigiate Conifer known, 

 as its peculiarity consists in having no side branches, but 

 from the main stem issue the small twigs, which impart to 

 the plant an appearance of a tall, slender green column. 

 It very regularly reproduces the same form from seed. 

 The Itevue Horticole, in speaking of it, says: "This pe- 

 culiarity is not, as one might suppose, occasioned by a 

 want of vigor, since some very vigorous specimens 40 

 feet high are only 2 feet in diameter, everything included, 

 of which size the stem makes one-third, or eight inches." 



17. C.thurifera, Hurriboldt. MEXICAN WHITE CEDAR. 

 Syn. ChamaBcyparis thurifera, Endlieher ; Juniper us 

 thurifera, JSonpland. A handsome species of large size 

 from the mountains of Mexico, where it is found at high 

 elevations. Its scattered, horizontal branches spread out 

 on every side to a great distance, with foliage of a charm- 

 ing glaucous-green color. The strobiles are larger than 



