250 PINUS; OR 



fourteen inches long ; sheaths, one inch and a quarter long, and 

 silky. Cones, slightly curved, depressed at the base, seven 

 inches long, and two inches and a half in diameter. Scales, 

 rhomboid, with different centres, rounded on the apex, trans- 

 versely keeled, and depressed at the base, one inch broad, and 

 half an inch long ; protuberance elevated in the middle, with a 

 large mucro in the centre. 



A fine tall tree, growing from 80 to 100 feet high, with 

 spreading branches, nearly horizontal, found growing near the 

 Guarda, on the road to Mexico, at Cuernavaca, at an elevation 

 of 8,000 or 9,000 feet. (? Pinus protuberans.) 



No. 108. PiKUS GRACILIS, Roezl, the Slender-leaved Mexican 



Pine. 

 (Discovered by M. Roezl in 1856-7.) 



Leaves, in fives, very slender, curved, and four inches long. 

 Cones, two inches long, rather more than one inch broad, and 

 with middling footstalks. Scales, rhomboid, rounded at the 

 summit, transversely keeled, protuberance mucronate. 



A tree growing from 80 to 100 feet high, very branching, 

 and with its leaves very bushy. This very pretty and distinct 

 kind is found growing on the reverse slope of the Cordilleras, 

 on the Pacific side, at an elevation of from 9,000 to 10,000 feet. 

 (? Pinus leiophylla.) 



No. 109. Pinus grandis, Roezl, the Great Mexican Pine. 

 (Discovered by M. Roezl in 1856-7.) 



Leaves, in fives, three-edged, stiff, and one foot long ; sheaths, 

 silky, and nearly one inch long. Cones, six inches long, two 

 or two inches and a half in diameter near the base, and of a 

 conical shape. Scales, thickened at the base, rhomboidal, with 

 a slight ridge across the middle, depressed in the centre, and 

 terminated in a sharp point, soon falling off. 



A large tree, growing 100 feet high, with large branches and 

 firm foliage in great tufts at the ends of the shoots. 



It is found growing between the Mexican volcanoes of Po- 



