104 ERYTHEA. 



wood similar to that of Pinus ponderosa, but darker and 

 harder: young trees, as well as the growth of the season on 

 older trees, very robust, |— 1 in. thick (reminding of F. 

 palustris, of the South); leaf-bracts | inch long, acuminate, 

 with Bcarious, laciniate margins; leaves 12 — 16 inches long, 

 straight, y^ inch wide, persistent for two or more years giving 

 a brush-like appearance to the stout, straight, branchlets; cones 

 (maturing in June and July and tardily dehiscent) solitary, 

 or in whorls of 2—6, spreading or slightly declined, narrowly 

 ovate, or longer, slightly oblique, 3—5 inches long, of few to 

 many (90—280) developed scales, the apophyses of which are 

 usually prominently elevated, but not recurved, rarely some 

 at base mammillate; the compressed quadrangular umbo 

 armed with a stout, deltoid, spreading, discolored prickle: 



mottled. 



i 



above, brown- 



H 



J— I inch thick; involucral scales, etc., large and firm; anthers 

 with a large orbicular, crenulate crest. 



Mts 



Mr 



and 



again, June, 1892. Specimens, until recently, have been 

 referred to P. ponderosa or P. Engelmanni, from which 

 however the tree is clearly distinguished by its earlier 

 maturation, robust young trees and branchlets, larger and 

 longer leaves, elevated cone-scales, darker and broader 

 timber, etc. The characters of this pine are included in my 



Engel 



laiifi 



Sargent, is distinct; as also, is the remarkable pine, clothing 

 the Apache-infested mountains of southern Arizona. 



The discussion of the northern, Thimble-Cone Pines, is 

 reserved for a future issue. 



