THE GRASS TRIBE 323 



Tribe ii. Chlorides. Spikelets laterally compressed, i-flowered, 

 sometimes with a rudimentary flower as well, arranged in 2 rows 

 on 1 side of a flattened rachis, or alternate and all turned to 

 1 side. 



3. Spartina (Cord-Grass). Spikelets awnless, sessile along 1 

 side of the 2-7 branches of a panicle ; glumes long and narrow, 

 strongly keeled ; pale as long as or longer than the flowering glume. 

 (Name from the Greek spartion, rope or cord, the leaves having 

 been used for making cord.) 



4. Cynodon (Dog's-tooth-Grass). Spikelets awnless, sessile, 

 arranged singly along 1 side of the slender branches which arise, 

 3-5 together, at the top of the stem ; rachiUa continued beyond 

 the pale as a small bristle, which sometimes bears a minute glum<- 

 (Name from the Greek kuon, a dog, and odous, a tooth.) 



5. Mibora (Sand-Grass). Inflorescence a simple i-sided spike 

 or raceme ; spikelets awnless ; glumes blunt, not keeled ; ffnwer- 

 ing glume membranous, very hairy, blunt. (Derivation ci me 

 name unknown.) 



Tribe iii. Phalaride.c. Inflorescence a panicle, sometimes com- 

 pact and spike-like ; spikelets laterally compressed , i-flowered, 

 with 1 or 2 rudimentary or male flowers as well ; outer glum, 

 equal, covering the flowers ; styles long. 



6. Phalaris (Reed-Grass). Spikelets broad and very flat, in a 

 compact panicle or in an ovoid or cylindrical, spike-like panicle ; 

 outer glumes nearly equal, keeled, the keel sometimes winged ; 

 there are usually 1 or more minute scales between the empty outer 

 glumes and the flowering one. (Name from the Greek phalos, 

 white or splendid, on account of the white, shining fruits.) 



7. Anthoxanthum (Vernal Grass). Spikelets narrow, crowded 

 into a spike-like panicle ; outer 2 glumes unequal, keeled, pointed, 

 but not awned ; next 2 glumes also empty, shorter than the outer 

 pair, hair}', one with a short awn on the back, the other with a 

 longer awn arising from the base ; flowering glume and pale mem- 

 branous, awnless ; stamens 2. (Name from the Greek anlhos, 3 

 flower, and xanthos, yellow.) 



8. Hierociiloe (Holy Grass). Spikelets with 1 perfect flower and 

 2 male flowers, in a spreading panicle ; glumes all membranous, 

 boat-shaped, keeled, pointed, the empty ones as long as the flowers ; 

 perfect flower with 2 stamens, the male with 3. (Name from the 

 Greek hieros, holy, and chloe, a grass ; it was formerly strewn about 

 Catholic churches on festival days.) 



