124 STATE HORTICULTURAL SOCIETY 



1542. E. rdbustum, A. Br. Great Scouring Rush. 

 Common on damp banks. 



1543. E. hyemale, L. Scouring Rush. 

 Common in wet soil. 



1544. E. Icevigatum, A. Br. Prairie Scouring Rush. 

 Quite common. 



LYCOPODIACEA. CLUB-MOSS FAMILY. 



LYCOPODIUM, L. 



1545. L. complanatum, L. Trailing Christmas Green. 

 Not common. 



1546. L. clavatum, L. Running Pine. 

 In woods. 



1546a. L. lucidulum, Michx. 



In woods, not common. 



SELAGINELLACE^I. SELAGINELLA FAMILY. 



SELAGINELLA, Beauv. 



1547. 8. rupestris, (L.) Spring Rock Selaginella. 

 On rocks, frequent. 



