PICEA—PINUS 131 



Branchlets. — Glabrous, shining white-brown; very thin 

 and fine. Annual growth i to J inch, mostly in crowded 

 whorls at ends of branches. 



Leaves. — Few, very fine and heath-hke; y\ to | inch; 

 flat, with two single stomatic lines on the upper side 

 and two rows of two to three each on the under sides. 



A stunted, narrow, upright Uttle tree which I found 

 growing in a plantation of normal P. Sitchensis, and 

 apparently twelve to fifteen years of age. It is now about 

 10 inches high, and has about three tiers of whorled 

 branchlets up the maia stem (growing close to it) and 

 odd, occasional ascending branches crowned with tiny 

 whorls of branchlets, the whole making a narrowly 

 upright little bush. The buds, branchlets, and leaves 

 are typical P. Sitchensis, but the latter are so fine and 

 heath-like as to appear more like hairs. 



PINUS, L. 



The dwarf pines are not very numerous. There are 

 more than fifty sj)ecies of pine, and only thirteen of these 

 have produced dwarf forms, but some of the species 

 not described here are themselves so slow in growth that 

 they might be utihsed for a considerable time in rock 

 and small gardens. Pines that might be grown in this 

 manner are: P. Albicaulis, P. Cembra, P. edulis, P. mono- 

 phylla, P. Balfouriaiia, P. aristata, P. parviflora, P. penta- 

 pliylla. and P. Peuke. 



P. Cembroides, Zucc. 



In my possession is a curious dwarf seedling form, said 

 to have been raised from imported P. Cembroides seed. 

 It is a sport having affinity to several species, mostly those 

 in the Cembroides section, but it differs from every known 

 species to such an extent that it is impossible to identify 

 it absolutely with any of them. 



Buds. — Minute, ovate or cylindrical; scales few; imbri- 

 cated green edged with brown; scale tips neither appressed 



