280 POACE.K. 



Viiliiablo for pasture in the regions in which it is found. 



('olorudo to Montana. 



8. A. GENICULATL8 L. Sp. Pi. CO (1753). Floatino or 

 Watku Foxtail. 



A perennial ; culms procumbent at base, 30-50 cm. high. Up- 

 per siieaths loose, with blade 4-20 em. long, 1 cm. wide or less. 

 Spike a. 5-5 cm. long, D mm. broad, obtuse, palo green. Spike- 

 lets 4 mm. long; empty glumes scarcely connate at base, silky- 

 ciliate, on the lateral and mid-nerves, obtuse; floral glume slightly 

 shorter than the empty glumes, its margins united one-third their 

 length; the awn starting one-fourth of ihe way from the base and 

 projecting half its length. 



^Massachusetts. Mann; Pennsylvania, Srrihner for U. S. Dept. 

 Agricul. )i'i^y; Iowa, Hitchcock^ Missouri, O. G. Comstock; 

 Montaiui, MiUiaots. 



Wet meadows and ditches; found in Europe, northern Africa, 

 western Asia, Australia; introduced into North America.. 



Yar. fulvus (J. K. Smith) Scribn. Mem. Torr. Club, 5:38 

 (1894). A.fnlvus Smith, Engl. liot. t. U67 (1793). A. (iristu- 

 latns Michx. Fl. Ror. Am. 1:43 (1803). A. genicuhtus arisliila- 

 tus Torr. Fl. U. S. 1:97 (1824). 



Blades of the upper leaves sometiiwes exceeding the spike. 

 Spikes 5-8 cm. long, 1 cm. or less broud. Spikelets two-thirds as 

 long as those of the species; empty glumes slightly shorter than 

 the floral glume; awn starting very little below the middle of the 

 glume and scaroely projecting at the apex. 



\'ermont, Priugle; Massachusetts, Heal 58; New York, Clark 

 1682, Heal 60; Pennsylvania, f^cribner ^\\^^\ Michigan, Heal 59, 

 Clark 689. Cooley, Anstin; Minnesota, Ifolzi tiger 35; Utah, 

 Jotii'.s 1074; Arizona, Tourney 759; Oregon, Howell; California, 

 Parish, Palmer 234: Montana, Williams, Anderson 34; Wash- 

 ington. Suksdorf 1066; Wyoming, Ihiffnm c 146. 



Wet places. New England to California. 



Var. robusttts Vasey, Bull. Torr. Club, 15:13 (1886). 



Culms thick, sometimes branching below, 30-45 cm. high, 

 smooth. Sheaths loose, smooth, 8-12 cm. long, the lower longer 



