364 I'INUS POX DEROSA. 



darker, shorter, and much crumpled the second year. Staminate 

 flowers in dense clusters 011 the apical end of shoots of the previous 

 year, cylindric, 1'25 1*75 inch long, reddish crimson, surrounded at the 

 base by ten twelve involucral bracts in two three series. Cones 

 (British grown) ovoid-conic, 3 '5 5 inches long, and 2 2 '5 inches in 

 diameter above the base ; scales oblong-cuneate, about an inch long 

 and half an inch broad, smaller and much crowded near the base, the 

 apophysis rhomboidal with a transverse keel and short pyramidal 

 innbo terminating in a recurved prickle. Seed wing narrowly oblong, 

 nearly as long as the scale. 



Pinus ponderosa. Douglas ex London, Arb. et Frut. Brit. IV. 2243, with figs. 

 (1838). Forbes, Pi'net. Woburn, 44, t. 13. Link in Linnsea, XV. 506. Endlicher, 

 Synops Conif. 163. Carriere, Traite Conif. ed. II. 445. Parlatore, D. C. Prodi-. 

 XVI. 395. Hoopes, Evergreens, 117. Gordon, Pinet. ed. II. 281. Engelmann in 

 Brewer and Watson's Bot. Califor. II. 125. Beissner. Nadelholzk. 261, with tig, 

 Sargent in Garden and Forest, VII. 392 ; and Silva K Amer. XI. tt. 560564. 

 Masters in Gard. Chron. VIII. ser. 3 (1890), p. 557, with figs : and Journ. R. 

 Hort. Soc. XIV. 237. 



P. Benthamiana, Hartweg in Journ. Hort. Soc. Lond. II. 189 ; and IV. 212, 

 with fig. 



P. brachyptera, Engelmann in Mem. Wislizenus' Tour in N. Mex. 89 (1848). 



P. Beardsleyi, Murray in Edinb. New Phil. Journ. 1855, p. 286. 



P. Engelmanni, Torrey in Pacific Ry. Rep. IV. 141 (1856) (not Carriere). 



P. Parryana, Gordon, Pinet. ed. II. 277 (1875) (not Engelmann). 



Eng. Heavy-wooded Pine. Amer. Yellow Pine, Bull Pine, Western Pitch Pine. 

 Germ. Schwerholzige Eiefer, Gelb Kiefer. 



var. Jeffrey!. 



Distinguished in Oregon from the typical Pinus ponderosa by its 

 more pungently aromatic resinous secretions, its stiffer and more elastic 

 leaves, persistent for a longer time; its yellow-green staminate flowers 

 and its larger cones armed with stronger reflexed prickles; in Great 

 Britain chiefly by its shorter branches and more strict habit, as well as 

 by the foregoing characters. 



P. ponderosa var. Jeffreyi, Engelmann in Brewer and Watson's Bot. Califor. II. 126. 

 P. Jetfreyi, Balfour Rep. Oregon Assoc. 2, with fig. Gordon, Pinet. ed. II. 272. 

 Lawson, Pinet. Brit. I. 45, t. 6. Masters in Journ. R. Hort. Soc. XIV. 231. 

 And others. 



var. scopulorum. 



A smaller tree (60 80 feet high) with shorter and more rigid 

 leaves, often in pairs, and persisting a longer time ; and smaller cones 

 with thinner scales armed with a slender prickle. 



P. ponderosa var. scopulorum, Engelmann in Brewer and Watson's Bot. Califor. 

 II. 126. Beissner, Nadelholzk. 263. Masters in Journ. R. Hort. Soc. XIV. 238. 



The following account of the geographical distribution of Pinus 

 ponderosa and the different aspects under which it is seen throughout 

 the immense area over which it is spread, is taken from the 

 American " Garden and Forest," Vol. VIIL p. 392 : 



The western Yellow Pine or Pinus ponderosa is the most widely- 

 distributed Pine tree of the mountain forests of western North 

 America, where it spreads from the interior of British Columbia from 

 about latitude 57 N. southwards to Mexico and eastwards to northern 

 .Nebraska, the foot-hills of the Eocky .Mountains of Colorado and 

 western Texas. Usually an inhabitant of dry elevated slopes, where 

 it often forms open forests of great extent, it flourishes also on the 



