Tennessee Flora. 27 



PTERIDOPHYTA.* 



OPHIOGLOSSACE^ Presl. 



OPHIOGLOSSUM L. 



I. Ophioglossum vulgatum L. Adder's-tongue. In moist 

 spots in the cedar g-lades at Lavergne, Williamson County. 

 May, June. 



BOTRYCHIUM Sw. Schrad. 



1. Botrychium ternatum (Thunb) Sw. Moonwort, grape 

 fern. O. S. ?\Iay. June. M. 



2. B. Virginianum (L) Sw. Rich, moist woods. O. S. 

 May. 



3. B. dissectum Sprengel. With the former. May, June. 



OSMUNDACE.^ R. Br. 

 OSMUNDA L. 



1. Osmunda regalis L. Royal fern. Bogs and swamps, 

 mountains and lowlands. Frequent. O. S. May, June. M. 



2. O. cinnamomea L. Cinnamon fern. In marshes, high 

 grounds or low grounds. O. S. May-July. 



3. O. Claytoniana L. Cumberland and Alleghany Moun- 

 tains. May, June. 



HYMENOPHYLLACE.13 Gaud. 



TRICHOMANES L. 



Trichomanes radicans Sw. Bristle fern. Underneath wet, 

 shelving rocks. Sewanee. June, July. 



SCHIZAEACE.E Reichenb. 



LYGODIUM Sw. Schrad. 

 I. Lygodium palmatum (Bernh.) Sw. Climbing fern. 

 Cumberland Mts. Rockwood. Graborchard.. Piney Falls, 

 Mrs. Bennett. July, August. 



POLYPODIACE^ R. Br. 

 ONOCLEA L. 



1. Onoclea sensibilis L. Wet meadows and borders of 

 ponds. O. S. June. 



2. O. sensibilis obtusilobata Torr. Williamson County. 

 July, August. 



♦Arranged after W. R. Maxon's List of Ferns of North America in 

 Smithsonian Publications, No. 1226, May, 1901. 



