PIOEA 129 



appeared dwarf in habit. Some of these in the course 

 of a few years have shown signs of becoming stronger in 

 growth, but a few have remained dwarf. Of these the 

 best is a plant of P. retroflexa, which has remained a 

 healthy but minute low conical bush about 12 inches high 

 by 1 8 inches through. 



Buds. — Minute, conical, acute; yellow-brown; bud 

 scales with acute entire apex. Terminal buds girt with 

 a ring of very minute scales with very long points. 



Branchlets. — Amiual growth J to | inch; thick and 

 stiff; glabrous Ught yellow. 



Leaves. — Imperfectly radial; J to J inch; flattish, 

 curved, about two stomatic hnes on each of three sunken 

 surfaces separated by a raised midrib ; leaves terminating 

 in a rather long cartilaginous point. 



Branches. — Very short, stiff, and crowded; branchlets 

 crowded and ascending. 



P. rubra, Lk. (1841). 



Syn.: P. rubens, Sargt. ('' Silv. N. Amer.," 1898). 

 The red spruce inhabits Eastern North America, from 

 Prince Edward Island through Massachusetts to North 

 Carolina, and though introduced to Europe over 1 50 years, 

 so far as I am aware, the dwarf form described, which I 

 found, is the only recorded dwarf form produced by this 

 species. 



P. rubra, var. crista-galli. 



Buds. — Usually fasciated — three into one — making a 

 minute cockscomb-like cushion; dark red, resinous; 

 terminal bud girt with a ring of cihate scales with long 

 subulate points. 



Branches. ^l^Sirrowlj ascending; surmounted by flat, 

 fan- shaped whorls of minute, frequently flattened and 

 fasciated branchlets. 



Branchlets. — Annual growth about J inch; yeUow-red; 

 with occasional short erect pubescence, mostly in grooves 



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