1*. GLUMACE^E 



in the other species ; the third glume ends in a short point or a 

 long, coarse awn. Cultivated ground and waste places ; not native. 

 Fl. July. Annual. 



2. Setaria {Bristle-Grass) 



i. S. glanca (Glaucous Bristle-Grass). Erect, 1-2 feet high ; 

 leaves rather broad, flat ; spike compact, regularly cylindrical, 

 i-i inches long, with many projecting bristles ; flowering glume 

 with transverse wrinkles which are conspicuous in the fruiting 

 stage. Cornfields ; rare ; not native. Fl. September. Annual. 



2. S. viridis (Green Bristle-Grass). Distinguished from S. glauca. 

 by having the second and third glumes about the same length, and 

 the flowering glume is destitute of the conspicuous transverse 

 wrinkles. Sandy and cultivated places ; uncommon ; not really 

 native. Fl. July, August. Annual. 



3. 5. veriicillala (Rough Bristle-Grass). Spike less regularly 

 cylindrical, the bristles are fewer and have short, stiff reflexed hairs ; 

 in the other species the hairs are less prominent and are directed 

 upwards. Cultivated places near London and Norwich ; not 

 native. Fl. July, August. Annual. 



3. SPARTINA (Cord-Grass) 



1. S. stricia (Twin-spiked or Common Cord-Grass). Grows in 

 small tufts ; roolstock wiry ; stems i-i feet high ; leaves rather 

 short, erect, flat except at the ends ; spikes usually 2 together, 

 rigid, erect, 3 or 4 inches long ; spikelcts about \ inch long. Salt 

 marshes on the south and east coasts of England. Fl. August. 

 Perennial. 



2. S. alt erni flora (Many-spiked Cord-Grass). Grows in large 

 clumps or beds ; root slocks soft ; stems 2-3 feet high, with 8 or 9 

 soft, very smooth sheaths ; spikes usually 5-7 together ; spikelcts 

 - inch long. Mud-fiats near Southampton. Fl. August. Peren- 

 nial. 



3. S. Townsendii (Townsend's Cord-Grass). Similar to the last ; 

 stems 2-4 feet high, with sometimes as many as 10 or 12 rather 

 soft sheaths ; spikes usually 3-5 together ; spikelcts nearly inch 

 long. Mud-flats on the coast of Hampshire, Sussex, and the Isle 

 of Wight. Fl. August. Perennial. 



4. Cynodon (Dog's-tooth-Grass) 



1. C. Dactylon (Creeping Dog's-tooth-Grass). A low, far- 

 creeping grass ; leaves short, narrow, pointed, bluish green ; spikes 

 3-5 together, i-i inches long ; spikelets scarcely yj inch long. 

 Sandy places in the south-west, especially near the sea ; rare. 

 Fl. August. Perennial. 



