OF WESTCHESTER COUNTY. 815 



A. Noveboracense, Swartz. Swamps and damp woods. 

 A. spinulosum, Swartz. 



Var. intermedium, Gray. About White Plains, 



Far. dilatatum, Gray. About White Plains. 

 A. cristatum, Swartz. Wet thickets. 



Far. Clintonianum, Gray. About White Plains. 

 A. Goldianum, Hook. Moist woods. 

 A. marginale, Swartz. Shaded rocks. 



A. acrostichoides, Swartfl. Near White Plains. 

 Far. incisum, Gray. White Plains. 



Cystopteris, Bernhardi. (Bladder-Fern.) 



C. fragilis, Bernh. Shaded Rocks. 



Struthiopteris, Willd (Ostrich Fern.) 

 S. GeiTnanica, Willd. White Plams. 



Onoclea, L. (Sensitive-Fern.) 



O. sensibilis, L. White Plains. 



Far. obtusilobata, Torr. White Plains. 



Woodsia, R. Brown. 



W. obtusa, Torr. Cliffs and banks. 

 W. Ilvensis, R. Brown. (Leggett.) 



Dicksonia, L'Her. 



D. punctilobula, Kunze. Damp shady places. 



Osniunda, L. (Flowering Fern.) ' - " - 



O. regalis, L. Wet woods and thickets. 

 O. Claytoniana, L. Damp grounds. 

 O. cinnamomea, L. Swamps and low thickets. 



Botrychium, Swartz. (Moonwort.) 



B. lanceolatum, Angstroem. 



B. Virginicum, Swartz. Throughout. 

 B. lunarioides, Swartz. 



Far. obliquum. Gray. White Plains, 



Order 131.— LYCOPODIACEiE. (Club-Moss PamityO 



Lycopodium, L. (Club-Moss.) 



Li. lucidulum, Mx. Damp woods. 

 li. dendroideum, Mx. Not common 

 Ij. clavatum, T. Woods. 

 Li. complanatum, L. White Plains. 



Selaginella, Beauv. 



S. rupestns, Spring. Dry rocks. 



S. apus, Spring. Damp shady places. 



