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angustifolia, with which it is sometimes confounded, by its smaller 
perigynium, which is abruptly contracted at its middle into a con- 
spicuous beak.” 
It is likely also to be confounded with some forms of laxiflora, when 
the latter bears few fruits, but in the finely striated perigynium, I 
have found one of the best discriminations, Hill. 
1152. C. laxiflora, Lam. 
Open woods, fields, etc.; frequent. May 20th — July 15th, often as 
late as October. 
1153 c. laxiflora, Lam., var. striatula, Carey. 
Yar. blanda , Boott. 
Common or abundant. May — June. (B. P.) 
1154. c. laxiflora, Lam., var. patulifolia, Carey. 
Yar. plantaginea , Boott. 
Near Stony Island; rare, 1886. Berry Lake, Ind.; rare, 1888. 
(B.P) 
Note. — A very variable species, the varieties growing in similar localities 
with the type. 
Yar. intermedia, Boott, of Gray’s Manual, 5th Ed., which is frequently found 
within our limits, is now regarded by Bailey as the type form. 
1155. C. careyana, Torr. Carey’s Sedge. 
Shaded ravines north of Evanston; very rare. May. (B.) 
This is also found beyond our limits in ravines made by the brooks 
of the Calumet river about its sources at Otis, Ind., Hill. 
1156. C. plantaginea, Lam. 
Shaded banks and rich open woods ; infrequent. May — June. (B.P.) 
Glencoe. Evanston. Niles. Riverside. Casella, Ind., and south- 
ward. 
1157. C. saltuensis, Bailey. 
C. vaginata, Tausch. 
Sloughs between Pine Station and Clarke, Ind.; rare. June, 
1887-89. 
Moist slopes near sloughs, with C. granularis, Muhl., Clarke, Ind., 
May, 1881, Hill. (B. P.) 
1158. C. tetaniea, Schk. 
Common south and east, less frequent in the northern portion of our 
district. 
1159. C. tetaniea, Schk., var. meadii, Bailey. Mead’s Sedge. 
C. meadii, Dew. 
C. meadii, Dew., var. bebbii, Arthur.? 
