552 GIIAMINE^E. (GRASS FAMILY.) 



tens, Ait.) Salt marshes, and sandy sea-beaches, common. August. (Also 



in one locality in S. of Eu.) 



* * Spikelets loosely imbricated, or somewhat remote and alternate, the keels slightly 



hairy or roughish under a lens : spikes sessile and erect, soft ; leaves, rhachis, frc. 



very smooth : culm, frc. rather succulent. 



4. S. stricta, Roth. (SALT MARSH-GRASS.) Culm l-3 high, leafy 

 to the top; leaves convolute, narrow; spikes few (2-4), the rhachis slightly 

 projecting at the summit beyond the crowded or imbricated spikelets ; glumes 

 acute, very unequal, the larger 1 -nerved, a little longer than the paleaj. Salt 

 marshes, Pennsylvania, &c. (MM.) (Eu.) 



Var. glafrra, Muhl. (S. glabra, MultL, partly.) Culm and leaA'es mostly 

 longer ; spikes 5-12 (2' - 3' long), the spikelets imbricate-crowded. Common 

 on the coast. 



Var. altcriliflora. (S. alterniflora, Loisd. Dactylis cynosuroides, var , 

 L.) Spikes more slender (3' -5' long), and the spikelets remotish, barely over- 

 lapping, the rhachis continued into a more conspicuous bract-like appendage ; 

 larger glume indistinctly 5-nerved (not so evidently as in the Eu. and Trop. 

 Amer. plant) : otherwise as in the preceding form, into which it passes. Com- 

 mon with the last. Odor strong and rancid. 



17. CTENIUM, Panzer. TOOTHACHE-GRASS. 



Spikelets densely imbricated in two rows on one side of a flat arcuate-curved 

 rhachis, forming a solitary terminal spike. Glumes persistent ; the lower one 

 (interior) much smaller ; the other concave below, bearing a stout recurved awn, 

 like a horn, on the middle of the back. Flowers 4-6, all but one neutral ; the 

 one or two lower consisting of empty awned palea?, the one or two uppermost 

 cf emptv awnless palca3 : the perfect flower intermediate in position ; its paleae 

 membranaceous, the lower awned or mucronate below the apex and densely 

 ciliate towards the base, 3-nerved. Squamulffi 2. Stamens 3. Stigmas plu- 

 mose. (Name Krcviov, a small comb, from the pectinate appearance of the spike.) 



1. C. Al3ieric;i 11 II III, Sprang. Culm (3 -4 high) simple, pubescent 

 or roughish ; larger glume warty-glandular outside and conspicuously awned. 

 1|. (Monocera aromatica, Ell.) Wet pine barrens, S. Virginia and southward. 

 Taste very pungent. 



18. BOUTEL.OUA, Lagasca (1805). MUSKET-GRASS. 



Spikelets crowded and closely sessile in 2 rows on one side of a flattened 

 rhachis, comprising one perfect flower below and one or more sterile (mostly 

 neutral) or rudimentary flowers. Glumes concave-keeled, the lower one shorter. 

 Perfect flower with the 3-nerved lower palea 3-toothed or cleft at the apex, the 

 2-nerved upper palea 2-toothcd, the teeth, at least of the former, pointed or subu- 

 late-awnei. Stamens 3 : anthers orange-colored or red. Rudimentary flowers 

 mostly 1 - 3-awned. Spikes solitary, racemed, or spiked ; the rhachis somewhat 

 extended beyond the spikelets. (Named for Claudius Boutelou, a Spanish writer 

 upon floriculture and agriculture.) 



