20 



Leaves 5 in a bundle, 6-12 em. long IP. Strobus. 



Leaves 2-3 in a bundle. 



Scales of cones unarmed, leaves usually 2-4 cm. long 2 P. Banksiana. 



Scales of cones tipped with a short spine, leaves usually 



over 4 cm. long 3 P. virginiana. 



1. Pinus Strobus Linnseus. WHITE PINE. Plate 2. Bark 

 greenish and smooth on young trees, becoming reddish or gray and 

 furrowed on old trees; young twigs scurvy-pubescent, soon smooth 

 and light brown; leaves normally 5 in a bundle, sometimes more, G-12 

 cm. long, 3-sided, sharp-pointed, bluish-green, maturing and falling 

 at end of second season; cones ripening at end of second season, usually 

 10-20 cm. long; wood light, soft, not strong, works easily, takes a good 

 polish, and warps little. 



Distribution. Newfoundland to Manitoba, south to Iowa, Ken- 

 tucky and along the Alleghany Mountains to northern Georgia. The 

 mass distribution of this species is to the north of our area, and in 

 Indianla it is local and found in small numbers. It is a common tree on 

 some of the dunes bordering Lake Michigan, and is found locally 

 throughout the area bordering Lake Michigan. Its distribution in this 

 part of the State has not been studied, but it is believed that in Lake 

 and Porter Counties it is not at present found far from the Lake. 

 Blatchley 1 reports "a thicket of this species about a peat bog on the 

 Hayward farm one mile east of Merrillville in Lake County." The 

 writer has seen it as a frequent tree in a black oak woods about four 

 miles southwest of Michigan City, also quite a number of large trees 

 seven miles northeast of Michigan City in a swampy woods, associated 

 ;vith white elm, black ash, soft maple, etc. 



Nieuwland 2 reports a single tree found in a tamarack swamp 25 miles 

 east of Michigan City near Lydick in St. Joseph County. The next 

 appearance of this species is to the south in Warren County on the out- 

 crops of sandstone along Big Pine, Little Pine, Rock and Kickapoo 

 Creeks. It is found more or less on bluffs of these creeks. It was the 

 most abundant along Big Pine Creek, and followed up the creek for 

 a distance of about ten miles, or midway between Rainsville and Indian 

 Village. To the south it is next found in Fountain County on the out- 

 crops of sandstone along Big Shawnee and Bear Creeks. Franklin 

 Watts who owns the "Bear Creek Canyon" just south of Fountain 

 says he remembers the area before any cutting was done along the 

 creek. He says that the white pine was a common tree along the creek 

 for a distance of half a mile and that a few scattered trees were found 

 as far as 40 rods from the creek. He stated that the largest trees were 



ilnd. Geol. Kept. 22:93:1898. 

 2 Amer. Mid. Nat. 3:70:1913. 



