188 



other localities, to limit the distribution of the species to the northern portion of 

 the State. 



Linnaea borealis (xronov. "Moist, pine woods, Pine Station, Ind., June 7,' 

 1884." (E. J. Hill.) This is the recorded southern limit for this definitely 

 northern form. Its occurrence so far south is worthy of note. It must be remem- 

 bered, however, in this extension of ranges that limits are marked by parallels of 

 latitude, when the proper method wotild be a consideration of isothermal lines. 



Galium boreale L. "Sandy prairies, Sheffield, Ind., July 6, 1875" ( E. J. 

 Hill); "rather common. Noble County" (W. B. VanGorder). The distribution of 

 this species seems fairly well made out for Indiana, being confined to the northern 

 counties which represent in a general way its southern limits. It is a form that 

 can not be readily mistaken for any other members of the genus, being definitely 

 marked by its bright white Howers. 



Liatrk cylindrar.ea Michx. "Dry sands. Lake County, Ind., September 4, 

 1893. (E. J. Hill.) The Indiana stations for this plant, so far as reported, in 

 addition to that in Lake County, are St. Joseph County (C. R. Barnes); Gibson 

 and Posey counties (J. Schneck). These widely separated stations indicate at 

 least the probability of its occurrence throughout the State in favorable localities. 

 The manual range reads: "Dry, open places, Niagara Falls to Minn, and Mo." 

 The St. Joseph County record is verified by specimens in the Purdue Herbarinm. 

 The inclusion of the Gibson and Posey County station is upon the authority of 

 Dr. J. Schneck, of Mt. Carmel, 111. 



Solklar/o humilis Pursh. "Sand hills, near Lake Michigan, Miller's, Ind., 

 September 12, 1893. Sometimes 3 feet high." (E. J. Hill.) This is a distinctly 

 northern form, and one which shows in its very considerable increase in size the 

 ^flTect of its new range. In its normal range, "Rocky banks, W. Vt., along the 

 Great Lakes, and northward," it is a low plant from 6 to 12 inches high. At the 

 base of the White Mountains a form is reported, by (iray, as occurring, having a 

 "stout stem, 1-2 feet high." Variety Gillmanni Gray, is larger (2 feet high), but 

 in addition to differences in inflorescence, is sharply separated from the species 

 by its "laciniately toothed leaves " The species is undoubtedly a member of the 

 State flora, and the Lake County station is to be added to the other exceptional 

 stations recorded, "islands in the Susquehanna, near Lancaster, and at the Falls 

 of the Potomac." 



Solidago uliginosa Nutt. "Peat bogs. Pine Station, Ind., Sept. 11, 1890." 

 (E. J. Hill.) This plant, which is northern in its mass distribution, has its 

 southern limit, so far as reported, in the northern tier of counties of Indiana. 

 Additional stations are. St. Joseph County (C. R. Barnes) and Noble County ( W. 



