The Book of Grasses 



PAGE 



Panicle not many-flowered; spikelets 4-10-flowered, bearing short, 



spreading awns. Wild Oat-grass 144 



Flattened Oat-grass . . . 144 

 Silky Oat-grass . . . . 144 

 Panicle narrow, not many-flowered; spikelets i-flowered, broad; 

 scales 3; flowering scales slightly downy. 



Slender Mountain Rice 99 



White-grained Mountain Rice . . , 100 

 Panicle narrow, contracted; spikelets i -flowered, small; scales 3. 

 Leaves very narrow. Grasses of late summer. 



Sheathed Rush-grass , . . 115 

 Small Rush-grass . . . . 114 

 Panicle narrow; spikelets 3-5-flowered; flowering scales short-awned. 



Leaves thread-like. Sheep's Fescue . . . 217 



III. — INFLORESCENCE CONSISTING OF LONGER PANICLES, SIZE VARI- 

 ABLE, USUALLY MORE THAN FOUR INCHES IN LENGTH. 



Division A. Spikelets i-flowered: 

 Panicle 3'- 10' long, narrow, contracted; spikelets small, not awned. 



Long-leaved Rush-grass . . . 114 

 Northern Dropseed . . . . 115 

 Panicle 4'-9' long, narrow; spikelets broad; flowering scale dark, 

 bearing a terminal, straight awn 8"- 1 2" long. 



Black-grained Mountain Rice . . . 100 

 Panicle 2'-6' long, slender, few-flowered; spikelets narrow, 5"-6" 

 long; flowering scale bearing a straight, terminal awn 9"-i2" 

 long. Long-awned Wood-grass . . . 1 1 1 



Panicle 2'-8' long, narrow; spikelets small. Leafy, wiry-stemmed 



grasses of late summer. Rock Muhlenbergia . . . 106 



Meadow Muhlenbergia . . . 107 

 Wood Muhlenbergia . . . 106 



Nimble Will 106 



Panicle 4'-8' long, many-flowered; numerous white hairs at base of 



flowering scale. Blue-joint Grass . . . . 122 



Nuttall's Reed-grass . . . 122 

 Panicle 4'-! 2' long, oblong, many-flowered; spikelets yellowish 

 brown, hairy, awned. A tall grass of late summer. 



Indian Grass ... 56 

 Panicle i2'-24' long; upper portion composed of long-awned, erect, 

 pistillate flov/ers; lower portion composed of avv'nless staminate 

 flowers borne on spreading branches. Indian Rice ... 89 



Panicle 3'-8' long, pyramidal, contracted after flowering; spikelets 

 crowded; scales 5, but 3d and 4th scales reduced to hairy 

 rudiments. Reed Canary-grass ... 94 



Panicle $'-8' long, branches slender; spikelets few, narrow; flower- 

 ing scale dark, long-awned. Leaves thread-like. 



Black Oat-grass . . . 101 

 42 



