THE HORTICULTURAL SOCIETY OF NEW YORK 



Leaves thick, at least the basal portion more or less appressed to the 

 branchlets. 

 Leaves with glands on the back or sides. 



Leaves acute. i. C. thyoides. 



Leaves obtuse. 



Branchlets i" wide or nearly so. 4. C. obiusa. 



Branchlets rarely exceeding I" wide. 5. C. Lawsoniana. 



Leaves without glands, or the glands very obscure. 

 Leaves acute, cuspidate. 



Old foliage green or yellowish green. 2. C. pisifera. 



Old foliage a dark rich green. 3. C. nootkatensis. 



Leaves obtuse, blunt. 4. C. obtiisa. 



Leaves flat, thin, spreading, with 2 white lines on the lower surface. 



Branches erect; habit cylindric. i. Varieties of C. thyoides. 



Branches spreading; habit globular to broadly conic. 



2. C. pisifera squarrosa. 



I. Chamaecyparis thyoides (L.) Sargent. White Cedar. 

 Swamp Cedar. Swamp Juniper 

 Cupressus thyoides L. Chamaecyparis sphaeroidea Spach . Th uya 

 sphaeroidea Spreng. 



This tree, in a wild state, reaches a height of 75 feet, with a 

 trunk diameter of a little over 3 feet ; in habit it is narrowly cone- 

 shaped. Branches widely spreading, the branchlets somewhat 

 flattened or nearly round ; foliage bluish green, the leaves ap- 

 pressed, in 4 rows, imbricated, usually very acute, 3^"-i" long, 

 and with a distinct gland on the back, the leaves on young or 

 robust growths and on seedlings linear, spreading, and 23/2 "-3" 

 long; staminate flowers i"-2" long, with 10-12 stamens; pistil- 

 late flowers reddish and about 1" in diameter; cones sessile or 

 nearly so, globular, 2^-^/2" in diameter, glaucous and bluish 

 purple when young, the scales flat or nearly so at top and with a 

 short projection ; seeds i or 2 under each fertile scale, about i" 

 long. 



A native of the United States, extending along the coast from 

 Maine to Mississippi, and inhabiting wet woods and swamps. 

 The two following well-marked dwarf varieties occur : 



Leaves of 2 forms, the one short, appressed and scale-like, the other, of 

 less frequent occurrence, spreading. Var. i. Andelyensis. 



Leaves of one form, all widely spreading. Var. 2. ericoides. 



\'ariety i. Andelyensis (Carr.) Nash. Chamaecyparis sphae- 

 roidea Andelyensis Carr. Retinispora leptoclada Hort. 



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