f&g. J 5 &.C, MJU HS, M4. H, PS ^ 
C-, aquatilis Wahl. 
C. aquat. v. cuspidata Laestd. 
c*, 
C. aquat. v. stans (Drejer)Boott 
ecu Hk 
C.' rigida Good. • - 
C. rig. v. Bigelowii (Torr.)Boott 
£ks>J ' 
•~U‘ ■ c j 
C. torta Boott 
• C. lenticular!s'dlichi. 
nc if, e- f*, mu * a , u?, 
U .0^4, wgdr.e^ F^| All , Trxip 
