338 



PARKS AND PLEASUEE-GEOUNDS. 



49. J. dimorpha. 53. J. racemosa. 



50. J. aquatica. 54. J. prostrata. 



51. J. glauca. 55. J. religiosa. 



52. J. Oedro. 



The size and forms of the species of this group are very varied ; 27, 

 28, and 31 are pyramidal ; 20 and 26 are oblongated, as is also 32 when 

 young ; 17 and 37 are fine shrubs with erect branches and pendulous 

 branchlets ; 26 and 44 are erect, with loose spreading branches ; 42 is 

 pyramidal, with slender weeping, branches: 16, 23. 24 are prostrate 

 shrubs. The foliage of 21, 36, 39 is of a light silvery green ; 28, 34, of 

 a glaucous green ; 22 and 32, of a somber green, and the latter with a 

 glaucous tint ; 18, 25, 27, 32, 41, are of a dark green color. J. procera 

 (30) is a large useful timber tree in Abyssinia. 



Suborder II. A OTINOS TR OBEJE , 



Gen. 1. CALLITMS. 

 1. C. Quadrivalvis, h? tree. 



Gen. 2. LIBOCEDRUS. 



1. L. Doniana, h? 30-70 ft. 3. L. Chilensis. 



2. L. tetragona. 



Callitris is a large tree from Mount Atlas, with horizontal branches, 

 and shining green leaves. Libocedrus 2 and 3 are from the Andes of 

 Southern Chili and Patagonia, where, it is said, they rival Araucaria 

 imbricata, and are both very fine trees ; 3 has a pyramidal head resem- 

 bling the upright cypress, with drooping branchlets and vivid green 

 foliage. 



Suborder III. 1HUIOP8WEM. 

 Gen. 1. BIOTA. 



1. B. orientalis, 10-15 ft. 6. B. orientalis pyramidalis. 



2. B. expansa. 7. B. Tartarica, tree. 



3. % glauca. 8. B. stricta, tree. 



4. B. Nepalensis. 9. B. pendula, bush. 



5. B. Sieboldii. 



The species of Biota, or Chinese Arbor-vitce, form handsome erect 

 shrubs, of a compact habit and of rather slow growth. B. pendula (9) 

 is an elegant bush or small tree, with slender branches and thread-like 

 drooping branchlets. The foliage of 1 is bright green when young, ac- 

 quiring at length a dark somber color ; 3 has a light glaucois hue, and 

 9 a light green. 



