06 



northward. In the central part of the State, according to the 

 above catalogue, It is first seen in the northern part of Clare 

 County, or but little south of the latitude of Manistee, where '* It 

 IS common In groves on sandy barrens/' '' In the southeast town- 

 ship of Missaukee County, along the west bank of the Muskegon 

 River, occurs a barren terrace about five miles long by two wide, 

 which is covered by groves of this pine in all stages of growth, 

 from seedlings to fine shapely trees 50 to 60 feet In height, and 

 12 to 14 Inches in diameter." This is essentially In the same 

 latitude as the coast of Maine station. Winchell, in his '* Cata- 

 logue of Michigan Plants," reports its presence at Sand Point, on 

 the east side of Saginaw Bay, In latitude 43° 50', and thence 

 northward along Lake Huron. There arc several localities for it 

 In the northern part of the southern peninsula, and It is frequently 

 met with in the northern peninsula. I have found it at Escanaba, 

 in the Menominee iron region, at Marquette and westward 

 along the railroads in the Marquette iron district, and on the 

 Keweenaw Peninsula. Here it may be looked for in any barren 

 district. 



Coming to the west side of Lake Michigan, it is given a sin- 

 gle station in Illinoi3. M. S. Bebb, of Rockford, 111., reports it 

 from Ogle County, in which Rockford is situated, or about lati- 

 tude 42°. This station is quite isolated, seemingly quite far 

 away from any yet given, unless they are found in central Wis- 

 consin. On the west shore of Lake Michigan it does not grow 

 as far south as on the east shore. This shore is much less sandy, 

 the prevailing west v/inds forming the sand-dunes mostly on the 

 east side of the lake. The farthest south where I can find any 

 mention of it along the shore is Sheboygan, (latitude 43° 40'). 

 This is about the same as that given for Its locality on the west 

 side of Lake Huron, at Sand Point. North and west of Green 

 Bay we come into the regions where it prevails once more, as at 

 Oconto and beyond. I have seen it very abundant and in dense 

 groves at Pembine, Wis., and southward. 



In Minnesota its range is extensive In the northeastern part. 

 I have seen It along the railroad from Two Harbors on Lake 

 Superior, to Tower, on Vermilion Lake. On dry hills about 

 Tower it is less common than P. resinosa^ nor does it occur as 



