34:0 PARKS AND PLEASUKE-GKOUNDS. 



Some plants of 1, the white cedar, have a compact, and others a 

 spreading liabit ; 3 has gracefully curved branches, with numerous 

 spreading branchlets. C. tkurifera is a spreading tree. The foliage of 2 

 is of a deep green ; and that of 3 and 5 of a glaucous green. 



Suborder V. TAXODINEM. 

 Gen. 1. TAXODIUM. 



1. T. distichum, 50-100 ft. 3. T. microphyllum, h? 



2. T. adscendens, h? tree. 4. T. Hugelii, h^ tree. 



Tliis is a deciduous family, with beautiful light green foliage. T. dis- 

 tichum, the well known deciduous Cypress, is of a slender pyramidal 

 form, growing to a large size in England, as at Sion House ; but which, 

 though hardy in most places in Scotland, scarcely ever grows above 12 

 or 15 feet high. The other species are not more robust. 



Gen. 2. GLYPTOSTROBUS. 

 T. G. heterophyllus, small tree. 2. G. pendula, h? bush. 



This is a new genus established by Endlicher. The species are shnibs 

 or low trees, not yet much known. 



Gen. 3. CRYPTOMERIA. 

 1. C. Japonica, h? 60-100 ft. 2. C. nana, A.? bush. 



The first species becomes a large tree in China ; but it is still doubtful 

 whether it will be more than a bush in this country. It succeeds best 

 in a mild, moist climate. 



Okder II. ABIETINEiE. 



Suborder I. ABIETINEJE VERJE. 



Gen. 1. PINUS. 



Pixus. — Group I. Tsuga. 



(Cones drooping. Leaves solitary and flat) 



*1. P. Tsuga, 25-30 ft. 4. P. Douglasii, 150-200 ff 



2. P. Brunoniaiia, h? 70-80 ft. 5. P. : taxifolia. 



3. P. Canadensis, 20-50 ft. 



Species 1 has not yet been introduced ; 2 and 3 are broad bushy trees, 

 the latter, from its slow growth, is well adapted for the shrubbery ; 4 is 

 of a pyramidal form, of prodigious size, and of unusually rapid growth. 

 The foliage of 2 is glaucous, of 3 a dark, and of 4 a vivid green. 



