-TATE GEOLOGIST. 136 



more strictly Atlantic coast species, also, reappear in our State, 

 moetlj "H a higher parallel than in their eastern habitat. -Such 

 are Dcsmodium tivvigatum (Wright), D. strictum (Wright), Co- 

 I trtrhotprrma (Wright), Utricularia purpurea (Wright), 

 Actinia cannabina (Wright\ Bartonia tenella (Wright), Smitajr 

 tamnifolia — though the appendtd authorities in these lists 

 show that I have not generally verified the identifications. 

 It would seem then that the isofloral lines, like the isothermal 

 ones, are, in their westward prolongation, deflected somewhat 

 toward the aorth, though the deflection is considerably more in 

 the former than the latter. 



The following is a list of the species which have not been 

 observed south of the mouth of the Saginaw river. It cannot 

 by any means be asserted, however, that none of these accur 

 in the more southern counties, though very few, if any, will be 

 discovered as far south as Ann Arbor : 



Votive Plants not observed south of the mouth of Saginaw 

 river. 



Anemone multifida. Amelanchier Canadensis, 

 Corydalis aurea, vara. botryajritim & alnifolia. 



glar. Epilobium palustre, var. liniarc, 



mbrium arabidoM Kibes lacustre, 

 Turritis glabra. " prostratum. 



Btri Lonioera parviflora, 

 irea vul_ u hirsute, 



Sisymbrium can- ' " ciliata. 



Cakile Americ Nardosmia palmate, 



Vida rotandifolie, Aster simplex, 



Budsoma ton Solidago puberela, 

 rotundifotia, •• Btri 



in B ibertianun " 11 raghtonii, 



Is lanoeolata, 



;n, Tanacetum Boronem 



Kulms Nutkann-. Art Oanadensi 



Pyros Americ " Ludoviciana, 



