318 The Pines. 



species in this section are Pinus strobus, P. monticola, P. Lambertiana, 

 P. flexili*) and P. deflexa. 



1301. In the section Pinaster, the scales are thickened at the apex, 

 and often bear a point or hook. They embrace by far the greater 

 number of species, which may be enumerated as follows the num- 

 ber of leaves in a group being prefixed to each : 



3 to 5. Pinus Parryana Parry's Pine. 

 3. " edulis Pifion or Nut Pine. 



1 or 2. " monophylla- One leaved Pine. 



5. " Balfouriana Balfour's Pine. 



var. aristata bristled var. 



2. " resinosa Red or Norway Pine. 

 5. " Torreyana Torrey's Pine. 



5. " Arizonica Arizona Pine. 



3. " ponderosa Western Yellow Pine. 

 " " var. Jeffreyi. 



" " var. scopulorum. 



3. " Chihuahuana. 



2. " contorta Twisted-branch Pine. 

 " " var. Miirrayana. 



3. " Sabiniana Hard-nut Pine, or Digger-Pine. 

 3. " Coulteri Coulter's Pine. 



3. " insignis Monterey Pine. 



3. " tuberculata. 



3. " tasda Old-field, or Loblolly Pine. 



3. " rigida Pitch Pine. 



" var. serotina Pond Pine. 

 2. " mops Spruce, or Jersey Pine. 



" var. clausa. 



2. " pungens Prickly Pine. 

 2. " muricata. 



2. " mitis Short-leaved Yellow Pine. 

 2. " glabra Spruce Pine. 

 2. " Banhiana Gray, or Scrub Pine. 

 3 to 5. " australis Long-leaved Pine. 



2 to 3. " fflwttii" Old-field," or Elliott's Pine. 



1302. THE WHITE PINE (Pinus strobus). This is the most valu- 

 able of all the native pines of the Atlantic States, and the one that 



