28 Tennessee Flora. 



WOODSIA R. Br. 



1. Woodsia Ilvenis R. Br. Knox County. A. Ruth. June, 



July- 



2. W. obtusa (S]"»reng-.) Torr. Very common. O. S. 

 July, August. 



DENNSTAEDTIA Bernh. 



Dennstaedtia punctilobula (Michx.) Moore. Dicksonia 

 punctilobula L'Her. Higher Cumberland and Alleghanies. 

 Piney Falls. Mrs. Bennett. August. 



FILIX Adans. 



Filix bulbifera (L.) Underw. Cystopteris bulifera Bernh, 

 Shady cliffs around Nashville, Cumberland Mts. July. 



F. fragilis (L.) Underw. Cystopteris fragilis Bernh. Moun- 

 tains and lowlands. O. S. May-July. 



POLYSTICHUM Roth. 



Polystichum acrostichoides (Michx.) Kuntze. Dryopteris 

 acrostichoides Kuntze. Christmas fern. Very common. 

 O. S. June-August. 



DRYOPTERIS Adans. 



Dryopteris Novasboboracensis A. Gray. Moist grounds in 

 the oak barrens of M. Tenn. Tullahama. July-September. 



D. thelypteris (L.) Asa Gray. Knoxville, L. F. Scribner. 

 June, July. 



D. Goldieana (Hook.) A. Gray. Aspidium Goldieanum 

 Hook. Cumberland and Alleghany Mts. Frequent. July, 

 August. 



D. marginalis (L.) A. Gray. Aspidium marginale Sw. 

 Over the Cumberland and Alleghany Mts. Leaves evergreen. 

 July, August. M. 



D. spinulosa (Retz.) Kuntze. Smoky ^Its. 



D. spinulosa intermedia (Miihl.) Underwood. Wolf Creek. 

 Cocke County, Clingman's Dome. July. 



D, spinulosa dilatata (Hoffm.) Underw. With the former. 

 Julv, August. 



PHEGOPTERIS F^e. 



Phegopteris Phegopteris (L.) Underw. Beech fern. Phe- 

 gopteris polypodioides F^e. Mts. of East Tennessee. 



Ph. hexagonoptera (Michx.) F^e. Hisrhlands of Middle 

 Tennessee. Frequent ; leaves, fragrant. August. 



WOODWARDIA J. E. Smith. 



Woodwardia areolata (L.) Moore. Woodwardia angusti- 

 folia J. E. Smith. Chain fern. Bogs. O. S. July, August. 



