THE TRUE PINES. 243 



No. 91. PiNUs AzTECAENSis, Roezl, the Azteca Pine. 

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



Leaves, in fives, three-edged, the outer sides much larger 

 than the inner ones, curved, of a beautiful, bright, shining 

 green, and from ten to twelve inches long ; sheaths, half an inch 

 long. Cones, very large and handsome, slightly curved towards 

 the points, perfectly conical, five or six inches long, and three 

 inches in diameter. Scales, rhomboidal, one inch broad, and 

 three-quarters of an inch long, swelled at the base, very ele- 

 vated at the summit, and of a reddish-brown colour. 



A tree growing sixty feet high, having a most beautiful ap- 

 pearance on account of its short branches, furnished with long, 

 curved leaves, bending in a graceful, plume-like manner at the 

 ends of the shoots. It is found growing on the Sierra of Za- 

 catlan, on the road between Mexico and Tampico, at an eleva- 

 tion of 7,000 feet. (? Pinus Apulcensis.) 



No. 92. Pinus Boothiana, Roezl, Booth's Mexican Pine. 



Syn. Pinus Bothiana, Vilmorin. 



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



Leaves, in fives, three-edged, stiff, and nine inches long. 

 Sheaths, one inch long, and silky. Cones, seven inches long, 

 and one inch and a half broad. Scales, thickened at the base, 

 four-sided, with a transverse ridge across the centre at the base ; 

 protuberance very much depressed in the centre, with a small 

 sharp prickle in the middle, soon falling off. 



A tree growing from eighty to ninety feet high, with short 

 branches and straight stiff leaves, found on the Mexican Moun- 

 tains near the Volcano of Ixtacihuatl, at an elevation of 10,000 

 feet. 



Named in compliment to Messrs. Booth of Hamburgh. 



No. 93. Pinus Boucheiana, Roezl, Bouche's Mexican Pine. 

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



Leaves, in fives, three-edged, delicately toothed upon the 



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