6 TREES OF NEW ENGLAND. 



PLATE II. PINUS STROBUS. 



1. Branch with sterile flowers. 5. Ovuliferous scale with ovules, 



2. Stamen. . inner side. 



3. Branch with fertile flowers. 6. Branch with cones. 



4. Bract and ovuliferous scale, outer 7. Cross-section of leaf. 



side. 



Pinus rigida, Mill. 

 PITCH PINE. HARD PINE. 



Habitat and Range. Most common in dry, sterile soils, occa- 

 sional in swamps. 



New Brunswick to Lake Ontario. 



Maine, mostly in the southwestern section near the 

 seacoast ; as far north as Chesterville, Franklin connty 

 (C. H. Knowlton, Rliodora, II, 124); scarcely more than a 

 shrub near its northern limits ; New Hampshire, most com- 

 mon along the Merrimac valley to the White mountains and up 

 the Connecticut valley to the mouth of the Passumpsic, reach- 

 ing an altitude of 1000 feet above the sea level ; Vermont, 

 common in the northern Champlain valley, less frequent 

 in the Connecticut valley (Flora of Vermont , 1900); common 

 in the other New England states, often forming large tracts of 

 woodland, sometimes exclusively occupying extensive areas. 



South to Virginia and along the mountains to northern Georgia ; 

 west to western New York, Ohio, Kentucky, and Tennessee. 



Habit. Usually a low tree, from 30 to 50 feet high, with a 

 diameter of 1-2 feet at the ground, but not infrequently rising 

 to 70-80 feet, with a diameter of 2-4 feet; trunk straight or 

 more or less tortuous, tapering rather rapidly ; branches rising , 

 at a wide angle with the stem, often tortuous, and sometimes 

 drooping at the extremities, distinctly whorled in young trees, 

 but gradually losing nearly every trace of regularity ; roughest 

 of our pines, the entire framework rough at every stage of 

 growth ; head variable, open, often scraggly, widest near the 

 base and sometimes dome-shaped in young trees ; branchlets 

 stout, terminating in rigid, spreading tufts of foliage. 



