384 A HANDBOOK OF CONIFERS 



Var. Parryana, Voss. (Fig. 85.) 

 Four-leaved Nut Peste. 



Pinus Parryana, Engelmann ; P. qiiadrifolia, Sudworth. Mexican 

 Pinon ; Nut Pine ; Parry's Nut Pine ; Parry's Pine ; Parry's Piiion. 



Differs from the type and other varieties by the leaves being 

 usually stouter and produced in fours, occasionally in fives or 

 smaller numbers. All the varieties may produce short shoots 

 bearing primordial or juvenile leaves, the phenomenon being very 

 marked in this variety. 



P. cembroides is distinct amongst three-leaved pines by the 

 reflexed basal scales to the leaves and its few- scaled cones and 

 large seeds. The basal scales are similar in the five-leaved 

 P. Balfouriana and P. aristata. 



Native chiefly of Mexico, but also found in Arizona and 

 California. Discovered in Mexico about 1830.^ 



Wood moderately heavy for pine, varying in the different 

 forms from 35-40 lb. per cubic ft. It is strong, slow-grown, often 

 knotty, and is used locally for building purposes, fencing, mine 

 timber, and firewood, but is of no commercial value outside its 

 own range. The edible seeds of both type and varieties make the 

 several trees of considerable food value, particularly to the Indians. 



The value of type and varieties in the British Isles is purely 

 arboricultural ; all, however, form distinctly interesting trees 

 or bushes, and should be included in collections. Plant in light 

 loamy soil. 



Shaw, Genus Pinus, 38 (1914) ; Shaw, Pines of Mexico, 5 (1909) ; Jepson, 

 Silva 0/ California, 92-93 (1910). 



Pinus clausa, Vasey. 

 Sand Pine. 



Florida Spruce Pine ; Oldfield Pine ; Scrub Pine ; Spruce Pine. 



A low, spreading tree 15-20 ft. high, with smooth branches and 

 branchlets. YoiLug shoots multinodal, smooth, reddish brown. 

 Leaves in pairs, slender, 2-3-1- in. long, with persistent basal sheaths. 

 Cones ovate-conic, reflexed, 2-3 J- in. long, produced in clusters, 

 often remaining closed on the branches for many years ; scales 

 concave, armed with short stout straight or recurved deciduous 

 prickles. 



Closely aUied to P. virginiana, but distinguished by its 

 numerous persistent cones. 



A pine of limited range, confined to the sandy coast of Alabama 

 and Florida. It is not in cultivation and does not appear to 

 possess any economic value except as a sand-binder and for fuel 

 in its native country. 



Shaw, Genus Pinus, p. 80 (1914). 



^Sargent, Silva of N. America, xi, 48 (1897). 



