22 



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 1 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. In the vicinity of Borden where the Jersey pine 

 grows, millmen distinguish two kinds of pines. Investigation showed 

 that both are Jersey pine. The one with resinous exudations along 

 the trunk is one kind, and trunks without exudation is the other. 

 Since Baird and Taylor include cultivated trees in their list of the plants 

 of Clark County, it is proposed to drop this reference. 



Remarks. White pine on account of the excellent qualities of its 

 wood is in great demand, and has always ranked as one of our leading 

 timber trees. In fact it was so highly prized that practically all of the 

 original stand of this species has been cut. 



The tree adapts itself to many habitats, hence has been used exten- 

 sively for forestry purposes both in America and Europe. In fact it was 

 the most used tree in forestry until about ten years ago when the white 

 pine blister rust was discovered in America. This disease is now found 

 in practically all of the states where this species forms dense stands. 

 However, Federal and State authorities are trying to stamp out the 

 disease. In Indiana it is a species well worth a trial for forestry pur- 

 poses, especially in windbreaks where other species are used. 



2. Pinus Banksiajia Lambert. GRAY PINE. JACK PINE. Plate 

 3. A small tree 10-15 m. high with reddish-brown bark, broken into 

 short flakes; shoots of season yellow-green, turning reddish-brown, 

 smooth; leaves dark green, in twos, 2-5 cm. long, divergent, curved or 

 twisted, rigid, sharp-pointed, persisting for two or three years; cones 

 sessile, sharp-pointed, oblique at the base, 3-5 cm. long, usually 

 pointing in the direction of the branch; wood light, soft and weak. 



Distribution. The most northern of all of our pines. Nova Scotia 

 to northern New York, northern Illinois, Minnesota and northward. In 

 Indiana it is found only on and among the sand dunes in the immediate 

 vicinity of Lake Michigan, and in no instance has it been seen more 

 than three miles from the Lake. Found sparingly in Lake, Porter and 

 Laporte Counties. It is the most abundant in the vicinity of Dune 

 Park. 



iProc. Ind. Acad. Sci. 1901:297:1902. 



