IOWA ACADEMY OF SCIENCE 
35 
STIPA L. 
75. Stipa spartea Trin. Porcupine Grass. Common in dry places. 
ARISTIDA L. 
76. Aristida basiramea Engelm. Forked Aristida. Common in sandy 
places 1 . 
77. Aristida intermedia Scribn. & Ball. Intermediate Aristida. Taken 
but once, near Morse. 
78. Aristida oligantka Michx. Few Flowered Aristida. Scarce in 
gravelly fields. 
MUHLENBERGIA Schreb. 
79. Muhlenbergia sobolifera (Muhl.) Trin. Rock Muhlenbergia. 
Rather scarce, in rocky woodlands. 
80. Muhlenbergia sylvatica Torr. Wood Muhlenbergia. In moist 
wooded places. 
81. Muhlenbergia tenuiflora) ( Willd.) B. S. P. Slender Muhlenbergia. 
Not plenty. 
82. Muhlenbergia mexicana (L.) Trin. Meadow Muhlenbergia. Very 
common everywhere in dry soils. 
83. Muhlenbergia racemosa (Michx.) B. S. P. Marsh Muhlenbergia. 
Plenty in moist places. 
84. Muhlenbergia schreberi J. F. Gmel. Dropseed Grass. Common 
everywhere. 
BRACHYELYTRUM Beauv. 
85. B r achy elyi rum erectum (Schreb.) Beauv. Brachyelytrum. 
Rather scarce in rocky woods. 
PHLEUM L. 
86. Phleum pratensis L. Timothy. Common in meadows and fields. 
ALOPECURUS L. 
87. Alopecurus geniadatus L. Marsh Foxtail. Common in marshy 
places. 
SPOROBOLUS R. Br. 
88. Sporobolus neglectus Nash. Small Rush Grass. Not scarce in dry 
soils. 
Sporobolus vaginiflorus (Torr.) Wood. Sheathed Rush Grass. 
In dry soils. 
89 . 
