PINU 
S 
WESTERN N. AMERICA EASTERN N.AMERICA 
Strobus 
rigida 
aN od flexilis 
cembroides ‘ 
fe a moaophylla 
sn ae 
aw een rg 
echinata 
EDD Tepfreyi 
eae ee 
EUROPE ASIA 
Cembra = Ara eiisis oto N 
oo 
a 
ores sylvestris Bungeana 
i 
l 
' 
' 
' 
' 
’ 
1 
' 
’ 
' 
Thunbergii 
i ill 
Peuce densiflora 
excelsa 
Tic. 2. Pinus-—Pine. Leaves one-half natural size. Cross-sections 6, 
