74 CONTEIBUTIONS FROM THE NATIONAL HEKBARIUM. 



especially along the keel, usually connate at the base; lemma obtuse, hyaline, usually 

 awned on the back, the margins connate near the base, forming a short tube; palea 

 none; stamens 3; styles usually distinct. 



KEY TO THE SPECIES. 



Spikelets about 3 mm. long; lemma shorter than the glumes 1. A. aristulatus. 



Spikelets G to 7 mm. long; lemma longer than the glumes 2. A. agrestis. 



1. Alopecurus aristulatus Michx. Fl. Bor. Amer. 1: 43. 1803. 



Alopecurus geniculatus aristulatus Torr. Fl. North & Mid. XJ. S. 1: 97. 1824. 



Type locality: "Hab. in paludosis Canadae." 



Range: British America to California, New Mexico, and Florida. 



New Mexico: Tunitcha Mountains; Cedar Hill; Chama; Ramah; Gallo Spring; 

 Taos; Santa Fe and Las Vegas mountains; Mogollon ]\Ioun tains; Rio Mimbres; White 

 and Sacramento mountains. Wet soil, often about the edge of water, in the Transi- 

 tion Zone. 



2. Alopecurus agrestis L. Sp. PI. ed. 2. 89. 1762. Slender foxtail. 



Type locality: "Habitat in Europa australi." 



Range: Native of Europe and Asia; introduced in many places in the United 

 States. 



New Mexico: Agricultural College (Cockerell). 



30. EPICAMPES Fresl. 



Tall perennials with very long spikelike many-flowered panicles; spikelets small, 

 1-flowered; glumes membranaceous, slightly unequal, convex on the back, carinate, 

 often finely 3-nerved; lemmas 3-nerved, obtuse or emarginate, a little shorter than 

 or about equaling the glumes, tipped with a slender, usually short awn; stamens 3; 

 styles short, distinct; grain included within the lemmas, free. 



KEY TO the species. 



Inflorescence spikelike 1. E. rlgens. 



Inflorescence paniculate 2. E. stricta. 



1. Epicampes rigens Benth. Journ. Linn. Soc. Bot. 19: 88. 1881. 

 Type locality: California. 



Range: Western Texas to Arizona and southward. 



New Mexico: Berendo Creek; Mogollon Creek; Mangas Springs; Deming. Dry 

 hills, in the Upper Sonoran Zone. 



2. Epicampes stricta Presl, Rel. Haenk. 1: 235. pi. 39. 1830. 

 Type locality: Mexico. 



Range: Western Texas to southern Arizona and southward. 



New Mexico: West Fork of the Gila; Crawfords Ranch; Silver City; near AVhite 

 Water; Socorro; Organ Mountains. Dry hills and canyons, in the Upper Sonoran 

 Zone. 



31. BLEPHARONEURON Nash. 



Tufted perennial with flat leaves and loosely flowered open panicles; spikelets 

 1-flowered; glumes 1-nerved, glabrous, the second about as long as the lemma, this 

 3-nerved, the nerves densely pilose for nearly their whole length, the midnerve often 

 excurrent at the apex; palea as long as the lemma, 2-nerved, densely pilose between 

 the nerves; stamens 3; styles 2, distinct. 



1. Blepharoneuron tricholepis (Torr.) Nash, Bull. Torrey Club 25: 88. 1898. 

 Vilfa tricholepis Torr. U. S. Rep. Expl. Miss. Pacif. 4: 155. 185G. 

 Sporobolus trkhohjns Coulter, Man. Rocky Mount. 411. 1885. 

 Type locality: Sandia Mountains, New Mexico. Type collected by Bigelow. 

 Range: Utah and Colorado to Arizona and Mexico. 



