Plmd.pk. 10. GRAMINE^. 74. Avena. 131 



4. Avena fatiia. Wild oat. 

 Panicle equally branched, loose ; locust<B drooping, 3 to 



S-seeded ; car iops ides husky, very hairy at bottom ; Jiowrets 

 all awned ; leaves flat. 



Avena q. ^jilops quibusdam aristis recurvis, ecu Avena pilsoa, J. Bau- 

 hini, Rail Spi. 389, 7. 



^gilops brornoides, Ger. em. 17. 

 ^gilops brornoides Belgarutn, Park. 1148. 

 Avena fatua, Lin. S. P. 118. 

 Bearded wild oats, or haver. 



Fields and corn-fields ; annual ; August. 



Root fibrous; culm upright, 4 feet high, naked above; 

 leaves broad, rather upright, plaited; sheaths bald; ligula 

 blunt ; panicle upright ; pedimcles unequal ; pedicles droop- 

 ing ; locustce pendulous ; glumelles yellow, growing black ; 

 aw?is brown. 



/3. pilosissima. Glumelles entirely covered with hair. 



5. Avena piilescens. Downy oat. 

 Panicle upright, nearly simple; locusicR upright, long, 



S-flowered ; cariopsides husked ; partial raciiis bearded ; 



culm simple ; leaves all flat, pubescent. 



Gramen avenaceum septimum seu glabrum (potius hirsutum) panicula 

 purpuro-argentea splendente D. Doody, Raii Syn, 406, 2. 

 Avena pubescens, Lin, S. P. 1665. 

 Avena pratensis, Gouan Hort. 53. 



Chalky fields and pastures ; perennial ; June. 



P.oot fibrous, in tufts ; culm 2 feet high, smooth, bald ; 

 leaves obtuse, uppermost smooth, bald; lower ligula very 

 short ; upper oblong, blunt ; panicle oblong ; locustce. large, 

 becoming obovate, shining, silvery green. 



^. glabra. Leaves smooth. 



6. Avena pratensis. Meadow oat. 

 Panicle upright, spiked, long ; peduncles single or in 



pairs ; locustce upright, 5 to 8-flowered ; cariopsides husked ; 



partial rachis hairy ; radical leaves, involute, rough, bald ; 



upper flat. 



Gramen avenaceum montanum, spica simplici, aihtis recurvis^ Raii Syn, 

 405,1. 



Avena pratensis, Lin. S. P. 119. 



Calcareous fields and pastures ; perennial ; July. 



Root fibrous; culms many, 2 feet high, upi'ight, simple, 

 naked above; radical leaves linear, acute, stiff"; stem leaves 

 broad ; sheaths very long ; ligulcB lanceolate. 



/3. brornoides. 



k2 



