74 Muhlenbergia, Volume 9 
ASTRAGALUS PURSHII Dougl. 
Rare on the steppe of the extreme northwestern corner. 
ASTRAGALUS SUCCULENTUS Rich. 
Common on the plains. No fresh fruit was found during 
the dry summers of 1910 and 1911. Quite plentiful in 1912. 
ASTRAGALUS DISPAR A. Nelson 
Common on the plains, especially in the rougher areas. 
LUPINUS ARGENTEUS Pursh. Lupine. 
Abundant on the steppe, especially at high elevations. 
EUPHORBIA ARKANSANA Engelm. & Gray 
Tolerably common on the steppe. 
VIOLA RETUSA Greene 
Rare, Little Missouri and Shaw creek. 
VIOLA VALLICOLA A. Nelson 
Abundant along valley banks. 
LAVAUXIA FLAVA A. Nelson 
Common on the sandy flood plain of the Grand river near 
Buffalo. Rare in bad lands. 
PACHYLOPHUS MONTANUS (Nutt.) A. Nelson 
Bare clay, Short Pine hills, June. 
CICUTA OCCIDENTALIS Greene. Water heimlock. 
Fairly numerous along brooks; occasional along creeks. 
COGSWELLIA MACROCARPA (Nutt.) Jones 
Abundant on the steppe. 
COGSWELLIA MONTANA (C. & R.) Jones 
Numerous on the plains. 
CORNUS INSTOLONEUS A. Nelson, ined. Kinnikinic. 
Not uncommon in thickets along streams throughout. 
PYROLA ULIGINOSA Torr. 
Common in shady gulches of the forest reserves. 
yENTIANA AFFINIS Griseb. 
Abundant along brooks. 
