THE TRUE PINES. 257 



mountains between the two volcanos of Popocatepetl and Ixta- 

 cihuatl, in Mexico, at an elevation never less than 10,000 feet. 



No. 125. PiNUS NoRTHUMBEKLAXDiANA, Roczl, the Duhe of 



Northumberland's Mexican Pine. 



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



Leaves, in fives, three-edged, one foot long, and tolerably- 

 stiff; sheaths, one inch and a quarter to one inch and a half 

 long, and silky. Cones, recurved, four inches long, and one 

 inch and three quarters broad. Scales, thickened at the base, 

 very irregularly rhomboid, with a transverse ridge across the 

 middle, elevated in the centre ; protuberance, very large, dark 

 brown, and smooth, with a small sharp point at the apex. 



A fine tree, seventy or eighty feet high ; discovered upon the 

 side of the mountains west from Popocatepetl, in Mexico. 



No. 126. PiNUS OcAMPii, Roezl, Ocampo's Mexican Pine. 

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



Leaves, in fives, three-edged, and ten inches and a half long ; 

 sheaths, reddish, silky, and one inch and a quarter long. Cones, 

 straight, seven inches long, and two inches in diameter. Scales, 

 almost quadrangular, depressed in the centre, transversely 

 keeled on those from the centre to the base, three quarters of an 

 inch broad, and three quarters of an inch long ; protuberance, 

 slightly depressed, with a sharp point in the middle. 



A very beautiful tree, growing from 100 to 120 feet high, 

 with compact foliage. It is found in a forest by the Hacienda 

 (Farm) of Mons Melchior Ocampo, near Morelia, in Mexico, at 

 an elevation of about 7,000 feet. ( ? Pinus Devoniana.) 



No. 127. Pinus Oktgisiana, Roczl, Ortgis's Pine. 

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

 Leaves, in fives, slender, and nine inches long ; sheaths, one 

 inch long. Cones, six inches long, two inches in diameter, and 

 curved. Scales, rhomboidal, rugged, transversely keeled; pro- 

 tuberance, large and conical, with the edges much thickened. 



