CATALOGUE OF PLANTS. 



125 



H. ripariurn, L. 



On stones, roots, etc., in still water. B and S, common. 



H. fluitans, L. 



In still water. B and S, common. 



H. Crista-castrensis, L. 



Pine woods, on ground. 8, rare. 



H. reptile, Michx. 



On trees. 8, common. 



H. imponens, Hedw. 



On decaying trees, etc. B, common. 



H. cupressiforme, L. 



On trees, stones, etc. B and S, common. 



H. curvifolium, Hedw. 

 On decaying logs. S, rare. 



H. Haldanianum, Grev. 



On damp ground and decaying trees. B and S, common. 



H. cordifolium, Hedw. 



Wet places. B and S, common. 



H. Schreberi, Willd. 



On ground in shaded places. B, M and 8, common. 



H. splendens, Hedw. 



On ground in woods. B, rare. 



H. triquetrum, L. 



On ground in woods. B, rare. 



Class III. THALLOPHYTA. 



Division I. CHARACEiE. 



(By J. W. Blankinship.) 



NITELLA, Ag. 

 N. flexilis, Ag. 

 BB, in the brook. 



