THE CYPRESS SUB-FAMILY. 303 



much exposed, and entirely without artificial protec- 

 tion. 



The J. tetragona is very abundant on the mountains of 

 Mexico, especially at high elevations, and forms a large 

 spreading bush not exceeding 4 or 5 feet in height. It is 

 exceedingly beautiful and well worthy of trial. The 

 branches are numerous and spreading, with the ends in- 

 curved, densely covered with leaves and very numerous, 

 stiff, spreading branclilets. This species must not be con- 

 founded with J. Phoenicia^ of. Linnaeus, which latter plant 

 is known by some writers on the Coniferse as J. tetragona, 

 of Maench. 



ADDITIONAL LIST OF JUNIPERUS. 



23. J. Cedro, Broussonet. Syn. J. Cedrus and J. Web- 

 bii, Carriere ; J. Canariensis, Knight. This charming 

 Juniper forms a small tree about 10 feet in height, with 

 horizontal or drooping branches, and numerous, rigid, 

 straight, mucronate leaves, of a bright glaucous color. It 

 is a native of the Canary Islands, but will not grow here 

 with any chance of success. 



24. J, Cerrosianus, Kellogg. CERROS ISLAND JUNIPER. 

 Is a new species, recently brought to notice by Dr. Kel- 

 logg, who published a description of it in the Proceedings 

 of the California Acad. of Nat. Sci. The leaves are mi- 

 nute, ovate-acute, appressed, imbricated in 6 rows, with an 

 oblong gland on the back. Berries somewhat oblong- 

 ovoid, of 6 to 8 oblong, sub-peltate, mucronate scales, co- 

 hering into a 3-seeded berry. Mature fruit snb-3-angled, 

 more or less tubercled, with oblong ridges, or longitudinal 

 ribs, and clothed with a dense blue bloom. Tree of slow 



