PICEA 127 



it is a comparatively small tree. It has both green and 

 glaucous forms, of which the former is the rarer in culti- 

 vation. The glaucous forms are extremely handsome, and 

 var. Kosteri compacta, although eventually attaining a 

 large size, grows so slowly that it may be grown for a 

 good many years on lawns or in small gardens. Un- 

 fortunately old specimens are inclined to lose a good deal 

 of their lower f oUage, which rather spoils their appearance. 

 The only form I know which retains its foHage is Sargent's 

 var. compacta. 



P. pungens, var. compacta, Rehder (Barley., "Cyclop. 

 Hort./' V. 2620, 1916). 



Buds. — About i inch; ovoid; rounded apex; tops of 

 upper scales rounded; some scarious and refiexed, others 

 slightly resinous and appressed. Terminal bud girt with 

 ring of keeled acuminate scales; hght brown. 



Branches. — Crowded in almost horizontal, plate-like 

 layers. 



Branchhts. — Very crowded; spreading; annual growth 

 1 inch to 3 inches; stiff, stout, glabrous, shiny yellow- 

 brown. 



Leaves. — Imperfectly radial; very crowded; thick, 

 rigid, prickly, dark green; | to f inch long; slightly in- 

 curved, with about four stomatic hues on each side. 

 Branchlets retained and not dying away as do those of the 

 type, and aU point out and forward. 



Raised from seed in the Arnold Arboretum in 1874, 

 where the original plant at thirty-four years of age has 

 made a rather flat-topped, densely branched bush 7 feet 

 high by 1 2 feet in diameter. 



P. pungens, var. glauca prostrata, Beiss. (ex " Mitt. d. d. 

 d. Ges." 1906, 141). 



A prostrate form of the type; as glaucous as var. " Kos- 

 teri compacta " of gardens. 



I have seen only young plants, which appear to be of 

 slow growth — one planted over twelve years at Curragh 



