=1.= =Pinus Stròbus= Linnæus. 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, 6-12 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, Kentucky and along the Alleghany Mountains to northern Georgia. The mass distribution of this species is to the north of our area, and in Indiana 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 with 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 outcrops 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 outcrops 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 about 30 inches in diameter and as high as the highest of the surrounding trees. Moving southward it is next found on a ridge of sandstone in Montgomery County on the south side of Sugar Creek about a mile east of the shades. Here it is closely associated with hemlock which is absent in all of the stations to the north. Coulter[3] reports a colony in the "knobs" of the northeast corner of Floyd County. This species was also reported from Clark County by Baird and Taylor. The writer has made inquiry and diligently searched for this species in this county but failed to locate it.