General Key to the Families 



XIII. CYPERACE^E. SEDGE FAMILY 



Grass-like or rush-like herbs with fibrous roots, mostly solid 

 culms and closed sheaths; flowers spiked in the axils of the imbri- 

 cated bracts, destitute of any perianth; fruit an achene. 



TRIBE 



I. ERIOPHORUM. L. 



1. E. callitrix. Cham. Hare's Tail. 



2. E. angustifolium. Roth. Cotton Grass. 



TRIBE CARICE^: 



II. KOBRESIA. Willd. 



1. K. bipartita. (All.) Britton. Arctic Kobresia. 



2. K. Bellardi. (All.) C. Koch. Arctic Elyna. 

 III. CAREX. (Ruppius.) L. 



1. C. f estiva. Dewey Sill. Tussock Sedge. 



2. C. pyrenaica. Wahl. Dwarf Sedge. 



3. C. Mertensii. P. Bong. Merten's Sedge. 



4. C. nigricans. C. A. Meyer. Black Sedge. 



5. C. rupestris. All. Rock Sedge. 



ORDER VIII. ARALES 



XIV. ARACE^. ARUM FAMILY 



Perennial herbs with pungent juice and tuberous rootstocks; 

 leaves large, veiny, simple or compound, abundant; flowers 

 crowded on a spadix which is usually surrounded by a spathe; 

 fruit usually a berry. 



I. LYSICHITON. Schott. 



i. L. kamtschatcense. Schott. Western Skunk Cabbage. 



ORDER IX. LILIALES 



XV. JUNCACE^:. RUSH FAMILY 



Rush-like or grass-like herbs; leaves alternate, sheathing, chan- 

 nelled or terete; flowers small, liliaceous in structure, but sedge- 



