GR AMINES. (GRASS FAMILY.) 541 



2. A. GENICULATUS, L. (FLOATING FOXTAIL.) Culm ascending, beut 

 at the lower joints ; palea rather shorter than the obtuse glumes, the awn from near 

 its base cttd projecting half its length bet/ond it ; anthers linear; upper leaf as long 

 as its sheath. 1J. Moist meadows : rare. July, Aug. (Nat. from Eu.) 



3. A. siristiilfatlis, Michx. (WiLD WATER-FOXTAIL.) Glaucous; 

 culm decumbent below, at length bent and ascending ; palea rather longer tftan 

 the obtuse glumes, scarcely exceeded by the awn which rises from just beiow its mid- 

 dle ; anthers oblong. 1J. (A. subaristatus, Pers.) In water and wet meadows ; 

 common, especially northward. June -August. Spike more slender and paler 

 than in the last. (Eu.) 



4. PHI. BUM, L. CAT'S-TAIL GKASS. 



Palese both present, shorter than the mucronate or awned glumes ; the lower 

 one truncate, usually awnless. Styles distinct. Otherwise much as in Alope- 

 curus. Spike very dense, harsh. (An ancient Greek name, probably of tho 

 Cat-tail.) 



1. P. PRATENSE, L. (TIMOTHY. HERD'S-GRASS in New England and 

 New York.) Spike cylindrical, elongated ; glumes ciliate on the back, tipped 

 with a bristle less than half their length. 1J. Meadows, &c. ; very valuable for 

 hay. (Nat. from Eu.) 



2. P. al pill U HI, L. Spike ovate-oblong; glumes strongly ciliate-fringed 

 on the back, tipped with a rough awn-like bristle about their own length, ty 

 Alpine tops of the White Mountains, New Hampshire, and high northward. 

 (Eu.) See Addend. 



5. VIL.FA, Adans., Beauv. RUSH-GRASS, 



Spikelets 1 -flowered, in a contracted or spiked panicle. Glumes 1 -nerved or 

 nerveless, not awned or pointed, the lower smaller. Flower nearly sessile in the 

 glumes. Palese 2, much alike, of the same texture as the glumes (membrana- 

 ceo-chartaceous ) and usually longer than they, naked, neither awned nor mu- 

 cronate ; the lower 1 -nerved (rarely somewhat 3-nerved). Stamens chiefly 3. 

 Stigmas simply feathery. Grain (caryopsis) oblong or cylindrical, deciduous. 

 Culms wiry or rigid. Leaves involute, usually bearded at the throat ; their 

 sheaths often enclosing the lateral panicle. (Name unexplained.) 



1. V. iaS|>ei*:i, Beauv. Root perennial ; culms tufted (2 -4 high); low- 

 est leaves very long, rigid, rough on the edges, tapering to a long involute and 

 thread-like point ; the upper short, involute ; sheaths partly enclosing the con- 

 tracted panicle ; pal&e. much longer than the unequal glumes ; grain oval or oblong. 

 (Agrostis aspera, Michx. A clandestina & A. involuta, Muhl. A. longifolia, 

 Ton.} Sandy fields and dry hills ; not rare, especially southward. Sept. 

 Spikeiets 2" -3" long. Palea} rough above, smooth or hairy below, of greatly 

 varying proportions ; the upper one tapering upwards, acute, and one half to 

 twice longer than the lower, or elso obtuse and equalled, or even considerably 

 exceeded, by the lower ! 



2. V. VclgillSBflorcl, Torr. Root annual ; culms slender (6 -12' high), 

 ascending ; leaves in volute-awl-shaped (!' - 4 f long) ; panicles simple and spiked, 



