126 



Fig. 108. Muhlenbergia filiculmis Yasey ; Contrib. TJ. S. Nat. 

 Herb. 1 : 267 ; Beal, Grasses N. Am., 2 : 250. Thread-like Muhlen- 

 bergia. — A low, tufted perennial with iiliibrrn scape-like culms 1.5 

 to 3.5 dm. liigh, setaceous radical leaves and narrow, spike-like 

 panicles 2 to 5 cm. long. — Sandy soil, Ute Pass, El Paso County, 

 in moist prairies at Como, Park County, and on the mesas at Twin 

 Lakes, Lake County, Colorado; alt. 2,000 to 3,000 m. July-Sep- 

 tember. 



