552 GRAMINR^. (GRASS FAMILY.) 



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

 in one locality in S. of En.) 



# * Spikelets loost I y iinf>rir(t(t, or soim-iclmt runoff. <i/ttl u/fmitid-, //i/> /x/.s slightly 



hair// or roiH/hish under a lens: spikes sessile and met, *<>//; /r/m.s, rhachis, frc. 



very smooth : i-nh/t, } \r. 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 palese. Salt 

 marshes, Pennsylvania, c. (Muhl.) (Eu.) 



Var. glattra, Muhl. (S. glabra, Mnld., partly.) Culm and leaves mostly 

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

 on the coast. 



Var. altCl'lliflora.. (S. alterniflora, LolseL 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-nervcd (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 ono 

 (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 

 of empty awnless palea3 : 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. Squamulse 2. Stamens 3. Stigmas plu- 

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



1. C. America n mil, Spreng. Culm (3 -4 high) simple, pubescent 

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

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

 Taste very pungent. 



18. BOUTEL.OIJA, 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 tin- ."-nerved lower palea 3-toothcd or cleft at the apex, the 

 2-nerved upper palca 2-toothed, the teeth, at least of the former, pointed or subu- 

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

 mostly I -:;-:iwiicd. Spikes solitary, racenied, or spiked ; the rhachis soincsvhat 

 extended beyond the spikelets. (Named for Clan, lias /!ui///!<>it, a Spanish writer 

 upon floriculture and agriculture.) 



