about 30 inches in diameter and as high as the higiiest of the siirroundinf!; 

 trees. ^Moving southward it is next found on a ridge of sandstone in 

 Montgomery County on the S(nith 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' leports a colony in 

 the "knobs" of the northeast corner of Floyd County. This species 

 was also reported from Clark Count}- by Baird and Taylor. The writer 

 has made inquiry and diligently searched for this species in this county 

 but faiUnl 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 exutlations along 

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

 Since Bau'd aiul Taylor include cultivated trees in their list of the plants 

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



Remark.s. — White jiinc on account of the excellent ciualities of its 

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

 timlici' trees. In fact it was so highly ]U'ized that practically all of the 

 original stand of this species has been cut. 



Th(> tree adapts itself to many habitats, hence has been used exten- 

 sively for forestry purposes both in Amei'ica 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 jiractically all of the states where this species forms tlense 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 othei- species are used. 



2. Piniis Banksiana Lambert. Gray Pine. Jack Pine. Plate 

 3. A small ti'ce 10-15 m. high with reddish-bi'own Ijai'k, Ijroken into 

 short flakes; shoots of season yellow-gi'een, tui'ning reddish-brown, 

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

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

 sessile, sharp-])ointed, oblicjue at the base, 3-5 cm. long, usually 

 jiointing in the direction of the bramdi; wood light, soft and weak. 



Distribution. — Th(> most northern of all of f)ur pines. Nova Scotia 

 to northern New Yoi'k, northern Illinois, Minnesota and nortliwai'd. In 

 Indiana it is found only on and among the sand duru^s in the immediate 

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

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

 Laporte Counties. It is tlie most alnuidant in tlie vicinity of Dune 

 Park. 



iProc. Ind. Acad. Sci. 1 !I0 1 :2»7 :iy02. 



