70 _ Muhlenbergia, Volume 9 
SELAGINELLA DENSA Rydb. Resurrection plant. 
Very abundant locally on the dry soil of the plains. 
JUNIPERUS SABINA L,. 
Very abundant on high grassy slopes, especially on the 
buttes. 
SAGITTARIA CUNEATA Sheldon 
Fairly common on the sinaller watercourses. 
AGROPYRON DASYSTACHYUM (Hook.) Scribn. 
Common in draws on the steppe. 
ALOPECURUS PRATENSIS L. 
Locally common on the steppe. 
BROMUS INERMIS Leyss. 
Locally common in open woods of the Little Missouri val- 
ley. 
CALAMAGROSTIS HYPERBOREA Lange. Reed grass. 
Frequent along streams. 
CHAETOCHLOA VIRIDIS (L,.) Scribn. Green foxtail. 
Not common. Found in grassy depressions. 
FESTUCA RUBRA L,. 
Rare on the steppe. 
HORDEUM NODOSUM I. 
On open clay banks. 
POA EPILIS Scribn. 
Rare in the West Shert Pines. 
POA INTERIOR Rydb. 
Rare, Shady valley, elevation 3600 feet, in Slim Buttes For- 
est Reserve. 
POA LAEVIGATA Scribn. 
Shady valleys in Slim Buttes; abundant. 
POA SHELDONII Vasey. Western blue grass. 
With P. zxterior, also collected by Fromme. 
CAREX ABBREVIATA Prescott. 
Rare in West Short Pines. 
