22 BOTANY OF LA SAL,IvE COUNTY. 



lauceolata, pedata and hastata are wanting 1 , while 

 blanda, rostrata and cucullata are abundant. Among- 

 Compositae the Iviatrii and Kuhnia are wanting- as 

 also Rudibeckia, except hirta and that has been intro- 

 duced from the west and several species of Solidago, 

 Helianthus, and several other genera are wanting- or 

 represented by one or two species only. 



Fifty miles west of Cleveland the Flora underg-oes a 

 great chang-e. The Liatrii appear, Ipomea panduratus 

 flourishes and many otrer plants common to the prairies 

 are found. The northwest corner of Indiana presents 

 a flora very different from either ours or that of north- 

 ern Ohio. As compared with either it is rich in 

 Ericaceae and is more like that of Marquette, Michi- 

 g-an, than either of those mentioned. The difference 

 extends to forest trees and also to Cryptogams. In 

 the Michigan and Indiana districts ferns are few and 

 mosses are scarce. Our district has more ferns than 

 northern Ohio, but here Osmunda reg-alis is but seldom 

 seen, there it is found in every swampy tract, while 

 Asplenium, Adiantum, Onoclea, Pteris are as common 

 as they are here, but Antigramma and Pellea are not 

 seen and Woodw T ardia not found here, flourishes in peat 

 bogs there. 



Among- forest trees northern Ohio has all which are 

 to be found here and in addition to those, the beech, 

 fagus ferruginea, liriodendron, tulipifera, castanea 

 vesca, nyssa multiflora, magnolia, acumminata, but 

 some species of the oak, e. g. quercus imbricaria are 

 unknown to its flora, while alba and macrocarpa are 

 common to both regions. 



The above are but a few examples of the differences 

 to be observed between the flora of reg-ions lying- in 

 almost the same lattitude and not far distant one from 

 the other, or lying- in nearly the same long-itude as does 



