MANUAL OF THE GRASSES OF THE UNITED STATES 



281 



FIGURE 548. Distribution of 

 Sphenopholis nitida. 



distant, ascending, spreading in an thesis; spikelets 3 to 3.5 mm long; 



glumes about equal in length, usually nearly as long as the first floret, 



the first glume broader than in the other 



species, the second broadly rounded at sum- 

 mit, at least the 

 second lemma 

 scabrous -papil- 

 lose. 91 Dry 

 or rocky woods, 

 Massachusetts to 

 North Dakota, 

 south to Florida 

 and Texas (fig. 

 548). 



5. Sphenophp- 

 lis filiformis 

 (Chapm.) Vasey. 

 (Fig. 549.) Culms 

 erect, very slen- 

 der, 30 to 60 cm 

 tall; blades slen- 

 der, lax, flat to 

 subin volute, 

 mostly less than 

 2 mm wide; pan- 

 icle slender, often 

 nodding, 5 to 15 

 cm long, the short 

 branches rather 

 distant, erect or 

 ascending; spike- 

 lets 3 to 4 mm 

 long, the two flo- 

 rets rather dis- 

 tant; second 

 glume broadly 



:i FIGURE 547. Sphenopholis nitida. Panicle, roun ded at SUm- 

 X 1; glumes and florets, X 10. (House mit, about 2 mm 



192 ' S ' a) long; lemmas ob- 



;tuse to subacute, rarely with a short spreading awn ; the first smooth, 

 the second minutely roughened. 21 Dry soil, Coastal Plain, North 

 Carolina to Florida, Tennessee, and eastern Texas (fig. 550). Occasional 

 awned lemmas, either the first or second, are found in some panicles. 



6. Sphenopholis pallens (Spreng.) Scribn. 



(Fig. 551.) Culms erect, about 60 cm tall; 

 lower sheaths minutely pubescent, the upper 

 glabrous; blades flat, glabrous, 1 to 2 mm wide; 

 panicle narrow, nodding, loose, or somewhat 

 compact, 15 to 25 cm long, the branches ascend- 

 ing, the lower distant; spikelets about as in 

 S. intermedia, 2- or 3-flowered, 3 to 3.5 mm long; 

 second floret scaberulous, usually awned just 

 below the apex, the awn scabrous, geniculate, 1 to 2 mm long. 01 

 'Eatonia aristata Scribn. and Merr.) The type of Aim pallens Spreng. 



FIGURE 549. Spheno- 

 pholis filiformis. Pan- 

 icle, X 1; glumes and 

 florets, X 10. (Hitch- 

 cock 1044, Ala.) 



?IGUBE 550. Distribution of 

 Sphenopholis filiformis. 



