164 



Paniceae 



Panicum 



50 



Map 294 



Panicum yadkinense Ashe 



3o 



Map 295 



Panicum spretum Schultes 



21. Panicum yadkinense Ashe. Map 294. Infrequent in a few southern 

 counties on the slopes and bases of wooded, usually high hills. 



Pa. to 111., southw. to Ga. and La. 



10. SPRETA 



Culms tufted, rather stiff, glabrous or rarely the lower internodes and 

 sheaths ascending-pubescent; ligules mostly 2-5 mm long; blades not over 

 8 mm wide ; spikelets pubescent, rarely glabrous ; second glume and sterile 

 lemma 5-7-nerved; autumnal form with more or less tufted branchlets, 

 reduced blades and panicles. 



Panicles narrow, a fourth to a third as wide as long (somewhat wider in anthesis) ; 



spikelets elliptic 22. P. spretum. 



Panicles open, at least two thirds as wide as long; spikelets obovate 



23. P. Lindheimeri. 



22. Panicum spretum Schultes. Map 295. In moist, sandy soil in open 

 places and on the borders of marshes that do not yet have a sod of other 

 grasses. Local but usually frequent where found. 



Coastal Plain, N. S. to Tex. ; Ind. 



23. Panicum Lindheimeri Nash. {Panicum lanuginosum var. Lind- 

 heimeri (Nash) Fern.) Map 296. This species is probably somewhat re- 

 stricted to the lake area and to the hilly areas of the southern part of 

 the state. It is usually found in dry, sandy soil in open woodland and 

 open, dry places, or in moister situations at the bases of sandy slopes, 

 and rarely in dry, sandy, clay soil. 



Que., Maine to Minn., southw. to Fla. and N. Mex. ; Calif. 



11. LANUGINOSA 



Plants more or less pubescent throughout; ligules densely hairy, 2-5 mm 

 long; blades not over 10 mm wide; spikelets 1.3-2.4 mm long, spreading- 



