266 PiNUS, OE 



angled at the smaller end, about half an inch in length, and 

 rather thin shelled. 



This pine resembles Pinus Llaveana in general appearance, 

 but differs in having shorter, more glaucous, and smaller 

 leaves, and with cones three or four times the size of those of 

 P. Llaveana, with which most writers confound it ; the cones 

 of P. cembroides have six or seven rows of scales, while those 

 of P. Llaveana have but three rows. 



It was first discovered in Mexico, and introduced by 

 Hartweg, who found it in the cold districts on the mountains 

 of Orizaba, near the village of Chichiquilah, attaining a height 

 of 30 feet at an elevation of 10,000 feet above the sea. The 

 tree is quite hardy, and the seeds are eaten by the inhabitants 

 of Orizaba. 



No. 31. Pinus Chihuahuana, Wislizenus, the Chihuahua 



Pine. 



Leaves in threes, very rarely in fours, finely toothed along 

 the edges, from two to three inches long, glaucous on the upper 

 part, and light green on the under one, very slightly striated 

 and fringed on the edges, buds scaly, pointed, and closely in- 

 laid. Sheaths at first long, lacerated at the edges, but soon 

 falling off, and leaving the base of the leaves naked. Cones 

 from one to one inch and a half long, and egg-shaped. Scales 

 transversely oval, and without any mucro. 



This kind resembles Pinus inops in appearance, but is 

 sufficiently distinct in its smooth cones. It is found common 

 on the mountains of Chihuahua, in North Mexico, at an eleva- 

 tion of 7000 feet above the s'ea, where it forms a tree from 30 

 to 35 feet high. 



No. 32. Pinus Coulteri, Bon, Dr. Coulter's Pine. 

 Syn. Pinus macocarpa, Limdley. 

 „ „ Sabiniana macrocarpa, Ho7-'t. 

 „ „ Sabina Coulteri, Loudon. 

 „ „ Sabiniana major, Manetti. 

 Leaves in threes, stout, and rather stiff, from 10 to 12 inches 



