IOO BULLETIN OK THE LABORATORIES 



922. A. thelypteroides Michx. 

 Wooded banks, somewhat common. 



923. A. Filix-foemina Bernh. 

 Moist woods, common. 



426. Camptosorus Link. 



924. C. rhizophyllus Link. 



Sandstone rocks, very rare; Stations 14 and 16. 



427. Phegopteris Fee. 



925. P. hexagonoptera Fee. 



Woods and fields, common. This varies greatly with forms ap- 

 proaching P. polypodioides Fee. The latter species has not been 

 found. 



428. Aspidium Swartz. 



926. A. Thelypteris Swartz. 

 Swamps, common. 



927. A. Noveboracense Swartz. 

 Moist, rich woods, somewhat common. 



928. A. spinulosum Swartz. 



Woods, especially damp soil, somewhat common. 



929. A. Goldianum Hook. < 

 Woods, rare. Herbarium of Prof. C. J. Herrick. 



930. A. marginale Swartz. 



Rocky, wooded hillsides, very common. 



931. A. acrostichoides Swartz. Christmas Fern. 

 Rocky woods, very common. 



932. A. acrostichoides Swartz. Var. incisum Gray. 

 Rocky woods, rare. Station 4. 



429. Cystopteris Bernhardi. 



933. C. bulbifera Bernh. 



Sandstone rocks, ravines; etc., near Toboso. 



934. C. fragilis Bernh. 

 Fields, woods, etc., common. 



