274 PINUS, OR 



the lower scales, keeled on the upper ones, and all of them 

 terminated by a large, dark, blunt point. 



A middle-sized tree, found on the higher mountains of Mexico. 



No. 42. PiNUS LlaveANAj Schiede, Llave's Pine. 

 Syn. Pinus osteosperma, Wislizenus. 

 „ „ cembroides, Zuccarini. 

 ,., edulis, Evxjelmann. . 



Leaves in threes, but often in twos, short, slightly twisted, 

 sometimes incurved, rigid, narrow, bright, glaucous green, very 

 dense, from two to two inches and a half long, ribbed on the 

 inner side, terminated with a sharp point, and frequently inter- 

 mixed with lance-shaped scales (abortive leaves), particularly 

 on the smaller shoots near the base, and which are sometimes 

 of a glaucous white colour, like those on the Stone Pine (P. 

 Pine) ; sheaths very short on the young leaves, but soon rolling 

 up and falling off the adult ones. Branches numerous, in 

 regular whorls, smooth, of an ash-gray colour, and horizontal, 

 with the points slightly elevated, and the branchlets spreading 

 in all directions. Buds small, blunt-pointed, numerous, and 

 thickly covered with brown scales, reflexed at the points, and 

 slightly resinous. Cones small, consisting of only three rows of 

 scales, roundish, obtuse, wider than long, one inch and three- 

 quarters wide, and one inch long, solitary, without any foot- 

 stalk, and taking two years to ripen. Scales thick, rounded 

 at the margin, rhomboid, bluntly-pyramidal, hard, glossy, 

 slightly angular, and more or less curved downwards, keel- 

 shaped below, three-quarters of an inch broad, deeply concave 

 on the inner side, and with two deep receptacles for the seed at 

 the base. Seeds very large, without wings, top-shaped, dark- 

 brown, with a hard shell, and six or seven lines long, and nearly 

 four broad, they are very agreeable to eat, but thick shelled. 



A low tree, with ample spreading branches, growing from 

 15 to 20 feet high, and occasionally cultivated in gardens for 

 the sake of its seeds, which the Mexicans call " Pinones." 



It is found in Mexico, on the barren hUls of Zimapan, Keal 



