GENUS 17. 



GRASS FAMILY 



53. Panicum Owenae Bicknell. Mrs. Owen's 

 Panic-grass. Fig. 363. 



Panicum Owenae Bicknell, Bull. Torr. Club, 35: 185. 

 1908. 



Culms tufted, erect or ascending, 6'-i tall, villous- 

 puberulent below, later branched, the branches crowded 

 at the base ; leaves 2 or 3 ; sheaths puberulent and often 

 pilose ; ligule a ring of hairs $" long or less ; blades on 

 the culm erect, up to 3' -4' long, \\" wide or less, gla- 

 brous above, appressed-pubescent beneath, the basal 

 blades shorter and broader; panicle up to 24' long, 

 the axis and the ascending or nearly erect branches 

 puberulent ; spikelets nearly i" long, oval, densely 

 pubescent with spreading hairs. 



Sandy places, Nantucket, Mass. June-Sept. 



54. Panicum tennesseense Ashc. Tennessee 

 Panic-grass. Fig. 364. 



P. tennesseense Ashe, Journ. E. Mitch. Sci. Soc. 15 : 

 52. 1898. 



Culms tufted, io'-2 tall, slender, ascending, papil- 

 i, lose-hirsute with long spreading hairs, finally much- 

 branched and prostrate and forming broad mats ; 

 sheaths densely papillose-hirsute with long spread- 

 ing hairs; ligule 2" long or more; blades ii'~4' long, 

 2i"-s" wide, the upper surface glabrous or with a 

 few long scattered hairs at the base, the lower sur- 

 face densely and softly pubescent, the blades on the 

 branches much shorter and spreading; panicle ii'-4' 

 long, ovate, its branches ascending; spikelets f" 

 long or a little more, about i as wide, elliptic or 

 obovoid, strongly pubescent with long spreading 

 hairs. 



In moist ground or in woods, Maine to Minnesota, 

 south to Georgia and Texas. July and Aug. 



55. Panicum lanuginosum Ell. Woolly 

 Panic-grass. Fig. 365. 



P. lanuginosum Ell. Bot. S. C. & Ga. i: 123. 1817. 

 Panicum auburne Ashe, Bull N. C. Exp. Sta. 175 : 

 115. 1900. 



Culms, sheaths and leaves villous with spread- 

 ing hairs, those on the leaves and the upper part 

 of the culm shorter. Culms leafy, tufted, i-2j 

 tall, erect, at length branched, a smooth ring 

 below each barbed node ; sheaths shorter than 

 the internodes ; ligule a ring of long hairs ; blades 

 erect, lanceolate, acuminate, li'-s' long, 2"-4$" 

 broad; panicle ovate, ii'~4' long, the axis pubes- 

 cent, the branches ascending, the larger i'-2' long; 

 spikelets numerous, broadly obovate, from a little 

 less than 5" to nearly i" long, the first scale 

 orbicular, glabrous or pubescent, i -nerved, the 

 second and third scales nearly orbicular when 

 spread out, 7-g-nerved, densely pubescent with 

 spreading hairs. 



Dry sandy soil, southern New Jersey to Florida, 

 Louisiana and Texas. July and Aug. 



