18 



Fig. 12. ANDROPOGON ELLIOTTII Chapm. Fl. So. U. S. 581. 1860. 

 ELLIOTT'S BROOM SEDGE.— A slender, upright perennial 6-9 dm. {29-3°) 

 high, the plumose racemes in pairs or ternate, 2.5-5 cm. (l'-2') long, and sub- 

 tended by conspicuously inflated upper leaf-sheaths. Sessile spikelet 3-4 mm. 

 m"-2") long; awn of the fourth glume {e) 12-21 mm. (6"-12") long.— Dry upland 

 woods or low pine barrens, Delaware and Pennsylvania to central Florida and 

 Texas. July to October. 



In var. gracilior Hack, in DC. Monog. Phan. 6 : 415, 1889, the leaves are 

 1 mm. ii") wide, and only two or three of the upper leaf sheaths are inflated; 

 awns 13-15 mm. {6i"-7i") long. Yar. glaucescens Sx?ribn. Bui. Torr. Bot. Club, 

 23: 145. 1896 {A. scribnerianns Nash, Bui. N. Y. Bot. Gard. 1:423. 1900), is a 

 glaucous, less branched form, with stouter and more densely bearded racemes; 

 var. LAXiFLORrs Scribn. 1. c. 146 (.4. campylorachcus Nash, Bui. N.Y. Bot. Gard. 

 1 :431. 1900), has the lower sheaths pubescent, the culms bearded below the 

 nodes, the upper sheaths remote, and racemes .5-7 cm. (2'-3') long. Florida. 



