104 TENNESSEE FLOE A. 



Li/godium palmatum Swarz. Cumberland Mts. Very local. 

 Rockland fetation. 



Osniimda reg'alis L. Swamps, highlands, barrens and moun- 

 tains. 



0. Glaytoniana L. Cumberland and Alleghany Mts. 



0. ciuiiamoiuea L. Swamps, throughout the State. 



OPHIOGLOSSIACEiE. 

 Botrychinin teruatum Swarz. Over the State. 

 B. Virgiiiicum Swarz. Over the State. 

 Ophio^Iossuin vulgatuiu L. Cedar glades, at Lavergne. 



LYCOPODIACE^. 



Lycopodium Selago L. Roane Mt. Prof. Chickering. 



L. dendroideimi Michx. Wolf creek, Cocke Co.; near Cran- 

 berry mines, Johnson Co. 



L. complanatum L. Cumberland Mts., Sewanee. 



Selaginella rupestris Sprengel. Dry rocks, along Ocoe river, 

 East Tenn. 



S. apus Sprengel. Common, throughout. 



*Is(Etes Biitleri, var. immaculata Engelm. Cedar glades near 

 Lavergne. In moist places. 



HYDROPTERIDES. 



Azolla Caroliniana Willd. Swamps near Johnsonville, West 

 Tenn. 



* Isotes Butleri Engelm., var. immaculata Engelm. Dioiceous, with a 

 subglobose trunk, bright green, rather firm leaf, sometimes as many as 

 sixty, six to nine inches long ; sporangium without spots; macrospores 

 0-40-OoG mm. in diameter ; microspores 002!)-00Sl mm. long, spinulose. 

 On limestone flats ; in damp places in the cedar barrens. One mile south- 

 east from the railroad station. June. 



