278 POACK.E. , * 



r»-iit'rv('(l, iiwii from near the base about tlireo tinics as loii<^ as the 



Oregon, lldtriU; \'aiicouver Island, Mucouuj Kocky Mountains, 

 Vase If. 



\'ar. Merrimani nov. var. Sheaths sli^'litly inflated, spikes ex- 

 serted. cblong or eylinclrieal. 1-2 em. long. 4-.') imii. wide; spikes 

 t*-"».l{ mm. long; em})ty glumes a very little shorter than the Ih.ral 

 glume, awn from the middle of th.c glume barely extending to its 

 tip or a little higher. 



Pribyloir Islands, Hering Sea, J>r. C. II. Mvn'iitiaii in 1S91. 



;i. A. AouEsTis L. Sp. PI. Kd. 2:80 (ITO'i). Slkxi)i:k Pox- 

 tail. 



An annual, 30-(50 em. high. Sheatlis long, seareely inflated; 

 blades Hat. Spike fl-S em. long, slender, eurved, aeute, often pur- 

 ])lish. Empty glumes 7 nun. long, lancolate, aeute. incurved, 

 connate to the middle, not ciliate, nerves green or jyurplish, wing- 

 keeled above the middle; floral glume exserted, glabrous, awn [U"o- 

 truding half its length. 



A troublesome weed in Europe, northern Africa, Siberia; intro- 

 duced into Nortii America. 



New Jersey, Scribncr IJaOTa, for U. S. Dept. Agricul. 222; 

 Colorado, ( 'assidi/. 



4. A. saccatus Vasey, Coult. Hot. fJaz. 0:200 (ISSl). 



Culms 12-25 cm. high, erect, simple. Sheaths mueli inflated, 

 generally including the base of the spike: blades of the culm al)out 

 :{ in number, short. Spike oblong, 2-5 cm. long, ratiier loosely 

 flowered. Sjjikelets 4 mm. loiig, clothed with silky hairs; empty 

 ghnnes shorter than the floret, 3-5 mm. long, obtuse, sligiitly united 

 at the base; floral glume oblong, obtuse, glabrous, the margins 

 united half their length or more; awn one-fourth the distance from 

 the base and protruding two or three times the length of the glumes. 

 This has much the general appearance of J. uiririihthis Sch. 



Oregon, J/ourU ; California, Jiolander 35 ; Japan, li. Ohlliam. 



5. A. pitATKNSis L. Sp. PI. (U) (1753). Meadow Foxtail. 



A soft erect i)erennial, 30-00 cm. high. I'ppersheath inflated, 

 longer than its blade; ligule oblong truncate; blades flat. Spikes 



