Rushes and Sedges 189 
Fic. 51.—Some New England sedges. 
1, Eleocharis tuberculosa, ‘‘spike-rush”; 2, Eriphorum alpinum, ‘ cotton- 
grass”; 3, Carex grisea; 4, Eriphorum polystachyon, ‘*cotton-grass’’; 5, 
Carex tribuloides; 6, Carex crinita ; 7, Carex stipata; 8, Scirpus sylvatt= 
cus, the true “ bul-rush ” (in fruit) ; 9, Seé7pus sylvaticus (in flower); 10, Carex 
lubulina, 
