54 



PLANTS OF ILLINOIS. 



marginale. Swartz. 



Shaded rocky hillsides. Scarce. 



acrostichoides, Swartz. 



Moist, shady hillsides. Infrequent. 



CYSTOPTERIS 



bnlbifera, Bernh. 



Shaded rocks. Frequent. 



fragilis. Bernh. 



Rich woods on hillsides. Common. 

 STRUTHIOPTERIS 



German ica, Willd. 



Damp woods. Infrequent. 



ONOCLEA 



sensibilis, L. 



Wet places. Common. 

 WOODSLA 



obtusa, Torr. S. ? 



Rocks. Marion co., Bebb : Wabash, Schneek ; 

 and southward. 



Ilvensis, R. Br. X. 



Occurs sparingly on sandstone cliffs near Oregon, 

 Ogle county. Bebb. 



DICKSONIA 



punctilobula, Kunze. 



Wabash county, Schneek. 

 OSMUXDA 



regalis, L. 



Wet woods. Infrequent. 



cinuamomea, L. 



Damp woods. Common near Chicago. Babcock : 

 Kankakee couutv. Hill : Menard. Hall. 



Claytoniana, L. 



Moist ravines. Common. 



BOTRYCHIUM 



Virginicura, Swartz. 



Rich woods. Frequent. 



lunarioides, Swarts, var. obliquum. 



Woods. S. 111., Vasey, Schneek. 

 OPHIOGLOSSUM 



vulgatum, L. 



Wabash county, (a single plant), Schneek. 



LYCOPODIACE.E. 



LYCOPODIUM 



lucid ulum, Michx. 



Damp woods. Evanston, Cook county, Vasey : 

 j Ogle, Bebb. 



Selago, L. N. 



"Collected by J. W. Powell near Ottawa''-Vasey. 



SELAGIXELLA 



rnpestris, Spring. 



Dry rocks and barrens. Henderson county : 

 Ogle, Bebb. Rare, or overlooked. 



apus, Spring. 



Low, shady places. 

 ISOETES 



Scan 



melanopoda, J. Gay. C. & N. 



Wet prairies and ponds. Menard county, Hall : 

 Fulton. Wolf : McHenry. Vasey. 



HYDROPTERIDES. 



AZOLLA 



Caroliniana, Willd. C. & S. 



Ponds, from Henderson and Peoria counties 

 southward. Scarce. 



