112 POACEAE 
1. D. sericea Nutt. Stem 50-100 em. tall: panicle 6-10 cm. long, rather 
loose, the branches cid or spreading: teeth of lemma 2-3 mm. lon 
dor 12- 
the sal awn 5 mm. long.—Sandy 
soil, Ko acid woods, and pinelands, various 
pro W Fla. to La, Tenn, and 
Mass. 
T i ribn. Resembles D. sericea, 
A 
sandy soil, Coastal Plain, Ga. to N. J., rare 
Probably only a variety ‘of D. sericea. 
Ra D. spicata (L.) Beauv. Stem 20-70 
tall: leaves usually in a basal tuft, the 
blades short and curly: panicle few-flow- 
ered, the few ak Danes erect.—Dry and 
sterile "e woods, pastures, elearings, and sand.hills, various provinees, Fla. 
to Tex., N. M., Wash., and Me. 
4. D. oe m Stem 40-90 em. tall: leaf-blades elongate, 2-9 m 
wide: teeth of 1 2 mm. long or more.—Dry woods, various provinces, N. c 
to Tenn. and Me. 
71, CAPRIOLA Adans. Perennial, usually low grasses with extensively 
creeping stolons and rootstocks, short blades and several slender spikes digi- 
t at 
bract; glumes NS idu. 1-nerved, 
m in texture, 3-nerv es lateral nerves 
elose to the margins. u^ species, of the 
warmer regions, the following widely dis- 
tributed. 
1. C. Dactylon (L.) Kuntze. Stem flattened, Vb B em. tall: spikes 
usually 4— 2 slender, 2-5 em. long: spikelets imbrieat e, 2 mm. long. [Cynodon 
Dactylon ers. |— (BER MUDA-GRASS. a eg E) Fields and waste-places, 
various fca ces, Fla. to Tex., Calif., Ore ass. Nat. of Eu. (W. I. 
Mex., C. A., S. A. eit more robust pom is ni. aioe the seacoast of Fla. 
SPARTINA Schreb. Stout erect, often tall perennials with — 
due d ereeping firm, sealy rootstocks, long tough blades, and 2 t 
appressed or sometimes spreading spikes racemose on the main axis. B. 
1-flowered, the rachilla articulate below the glumes, not produced beyond the 
floret, much flattened laterally, sessile and usually closely imbricate in 2 rows 
on one side of a continuous rachis: glumes keeled, l-nerved, eee or short- 
awned, the first us sa the second often exceeding the lemma; lemma firm, 
keeled, the lateral nerves obscure, narrowed to a rather obtuse point; palea 
