No. 55.] 



Ciyptogramma gracile. Pterin gracilis, Michx. Rocks, Trenton tails. 



July. 

 \ antum pedatum, L. Shady woods. July. September. 

 Strutbiopteria germanica, Willi. Hanks oi the .Mohawk. July, Aug. 

 lea sensibilia, /.. Moist borders of woods. July. 



Sub-ordbb OSM1 NDEjE. 

 Osmunds claytoniana, /•■ Damp low grounds. Juno, July. 



— cinnamomea, /.. Low grounds. July. 



— regalis, /.. Swamps. July, August. 



Sub-order OPHIOGLOSSEJ5. 

 Botrychium fbmarioid -. s Moist woods. July. August. 



— inioum, - S V. Woods and lull sides. May, June. 



Order LYCOPODIACRE. The Club-moss Tribe. 

 Lycopodium clavatum, /.. Dry open woods. July. 

 • _ complanatum, L. Sandj plains and open woods. July. 



— uruni. L. Shady woods. July. 



— annotinum. I.. Shady woods. July. 



— hicidulum, Michx. Shady damp woods. July, August. 



— apodum, L. Sandy borders of swamps, Rome. August. 



( $ ) This sign is prefixed to such species as are helieved to be 

 naturalized in the count v. 



( ' ) The point of exclamation placed after the name ol a botanist, 

 indicates that we have examined a specimen labelled by the author or 



collector cited. , zr 7J r ,-, , 



[Communicated by Hobart Hall Institute. 



