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GRAMINEX. (GRASS FAMILY.) 569 
1. D. spicata, Beauv. Spikelets 4 — 8, racemose, 7-flowered ; lower palea 
rough with short rigid hairs, much longer than the lanceolate-subulate teeth ; 
culms (10' - 18' high) slender ; leaves short and narrow, soon involute. (Avena 
spicata, L.) — Dry barren soil, Florida, and northward. June and J uly. — Ra- 
ceme 1/-2! long. 
2. D. sericea, Nutt. Spikelets numerous, panicled, 7-flowered ; lower 
palea white with long silky hairs, as long as the slender, awn-pointed teeth; 
, Culms 2° high ; sheaths of the linear leaves woolly above. (Avena spicata, Ell.) 
— Upper districts of Georgia, and northward. April. 
\ 
44. ARRHENATHERUM, Beauv. 
Tall grasses, with flat leaves, and spreading panicles with clustered or whorled 
branches. Spikelets 2-flowered, with the awn-like rudiment of a third flower; 
the lower one staminate, the upper perfect. Glumes membranaceous, concave, 
the upper one as long as the flowers. Pales herbaceous; the lower one of the 
perfect flowers slightly awned near the apex, that of the staminate flower bearing 
a long bent awn below the middle. Stamens 3. 
1. A. avenaceum, Beauv. Culms smooth, 29 -3° high; leaves broadly 
linear; panicle narrow, whitish, 8/— 10' Jong; gon NEM North Caro- 
ian, Cm JIntrođutėd. - E MN HU E ee ee A 
+ 
45. ANTHOXANTHUM, L. Bye idit diis. 
Grasses with flat leaves and 3-flowered spikelets, crowded in a spiked panicle; 
the two lower flowers neutral, and consisting of a single hairy palea awned 
on the back; the upper flower perfect, of two smooth awnless pales, and two 
very thin glumes, the upper one 3-nerved, longer than the flower, and twice as 
long as the 1-nerved lower one. Stamens 2. Grain enclosed in the pales. 
1. A. odoratum, L. Culms 1? high; leaves linear, hairy; panicle 1!—3' 
long. — Low grounds around the larger cities, Savannah, Charleston, &c. In- 
troduced. April and May. 
46. PHALARIS, L. 
Spikelets crowded in a densely spiked panicle, 3-flowered ; the Gii jeiko iw: 
ers reduced to hairy scales; the upper perfect, consisting of 2 boat-shaped awn- 
less, at length coriaceous paleæ, the lower one longer and enclosing the upper, 
and two nearly equal broadly keeled glumes which are longer than the flower: * 
Stamens 3. Styles elongated. Grain enclosed in the palex. 
1. P. intermedia, Bose. Culms ascending, slender, 6/—12' high ; leaves 
short, with the uppermost sheath inflated; spike (}/-1! long) oval, compact; 
glumes lanceolate, slender-pointed, broadly keeled, twice as long as the hairy 
. (P. Americana, Ell. P. microstachya, DC.) — Sandy places 
ast, Florida to North Carolina. April and May. ae 
