EVERGREENS OF IOWA 
331 
Cult. rare. 
1502 East St. 
European Alps. 
FI. Fr. 
3. P. Banksiana Banks's P. Jack Pine 
Small tree with Ivs. in 2’s, 2-3cm. long, stiff. Branches beset 
with old dead cones. Bark black-grey. 
Cone 4-5cm. long, scales thick, without a prickle. Resin ducts 
deep in leaf. 
Cult. rare. 
Mears Cottage, campus. 
N. S. to Minn, and northward. 
FI. May Fr. Oct. 
4. P. Montana Mughus Mugho Pine Dwarf Mountain Pine 
Treelike shrub, 5 -20dm. tall. Lvs. in 2’s, 3 -4cm. long, stiff. 
Branchlets dull greenish brown ; buds coated with resin. 
Cone regular, conical ; scales thickened at tip, with a prickle. 
Resin canals of leaf near epidermis. 
Cult, frequent. 
Quadrangle ; 917 High St. 
Mts. of central Europe. 
FI. Fr. 
5. P. sylvestris Forest P. Scotch Pine 
Tree with orange-yellow papery bark on parts 5-25cm. thick. 
Lvs, in 2’s, stiff, twisted, 4-7cm. long. Cones few, falling off in 
May each year, pointing away from apex of shoot (recurved), 
4-6cm. long. Cone scales thick at tip, without a spine. Resin 
canals of leaf near epidermis. 
Cult, common. . 
Campus. 
Europe and n. w. Asia. 
FI. May. Fr. Apr.-May. 
Note : This species and P. Strobus and P. nigra austriaca are the only 
pines commonly found about lawns and windbreaks, and all are very com- 
mon. While this is “one of the most important timber trees of Europe, 
and “is quite hardy,” it “has little to recommend it as an ornamental tree” 
(Bailey’s Cyclop.) 
6. P. resinosa Resinous P. Norway Pine Red Pine 
Tree with coarse brown bark; branchlets orange color. Lvs. in 
2’s, 6- 14cm. long, slender, flexible. 
Cones 4-6cm. long, the scales thickened, without a spine. Resin 
canals near epidermis. 
