23 



GRASS FAMILY. 



30. Panicum miliaceum L,. Millet. 

 (Fig. 272.) 



Panicum miliaceum L- Sp. PI. 58. 1753. 



Culms erect or decumbent, rather stout, i or more 

 tall, glabrous or hirsute. Sheaths papillose- hirsute ; 

 leaves 5 / -io / long, Y$ f -\ f wide, more or less pubes- 

 cent ; panicle rather dense, 4/-IO' long; branches erect 

 or ascending ; spikelets a // -2^ // long, acuminate ; 

 first scale about two-thirds as long as the spikelet, acum- 

 inate, 5-7-nerved ; second scale 2 // -2 / J^ // long, acum- 

 inate, i.vnerved, somewhat exceeding the 7-i3-nerved 

 acuminate third one, which subtends an empty palet; 

 fourth scale shorter than the third, becoming indu- 

 rated, obtuse. 



In waste places, Maine to New York, New Jersey and 

 Pennsylvania. Adventive from the Old World. July-Sept. 



Panicum proliferum L,am. Spreading Panicum. (Fig. 273.) 



Panicum proliferum Lam. Kncycl. 4: 7478. 1797. 

 Panicum genicula turn Muhl. C.ram. 125. i- 



Culms at first erect, i-2 tall, simple, later de- 

 cumbent and geniculate, 4-6 long, branched at all 

 the upper nodes. Sheaths loose, glabrous, some- 

 what flattened; ligulc ciliate ; leaves 6'-a long. 

 2 // -io // wide, long-acuminate, scabrous on the mar- 

 gins and occasionally on the nerves; panicle pyra- 

 midal, 4'-i6' long, lower branches $'-6' long, at 

 length widely spreading; spikelets i"-i>" long, 

 crowded, lanceolate, acute, glabrous, sometimes 

 purplish; first scale about one-fourth as long as the 

 spikelet, enclosing its base; second and third scale* 

 about equal, acute, 5-7-nerved; fourth scale elliptic. 

 shining, somewhat shorter than or equalling the 

 third. 



In wet soil, Maine to Pennsylvania and Nebraska, 

 south to Florida and Texas. July-Sept 



32. Panicum capillare I,. Witch Grass. 

 Tumble-weed. (Fig. 274.) 



Panicum capillare L. Sp. PI. 58. 1753. 



Culms erect or decumbent, i-2 tall, simple or some- 

 times sparingly branched. Sheaths papillose-hirsute; 

 leaves 6'-! long, 3 // -8 // wide, more or less pubescent; 

 terminal panicle generally 8^-14' long, lower branches 

 at first included in the upper sheath, finally exserted 

 and widely spreading, 6 / -io / long ; lateral panicles, 

 when present, smaller; spikelets \"-\]i" long, acu- 

 minate ; first scale one-fourth to one-half as long as 

 the spikelet ; second and third scales nearly equal, 

 very acute, the fourth ^ ff long. 



In dry soil, common as a weed in cultivated fields, Nova 

 Scotia to British Columbia, south to Florida, Nevada and 

 is. July-Sept. 



Panicum capillare Gattingiri Nash. 

 Panicum capillare var. campestre Gattinger, Tenn. Fl. 94- 188?- -iptstre 



Culms more slender than in the type; terminal panicle rarely over < 

 numerous. Moist places, New Jersey to Tennessee, Missouri and 



