GRASS FAMILY. 

 7. Andropogon Elliottii Chapm. Elliott's Beard-gnM* ~ . 



Andropogon Elliottii Chapm. Fl. S. States <j8i 

 1860. 



Culms erect, i-3 tall, smooth, simple or 

 sparingly branched above, branches strongly 

 bearded at the upper nodes. Sheaths glabrous 

 or loosely villous, the lower narrow, the upper 

 elongated, inflated, imbricated; basal leaves 

 about one-half as long as the culm, smooth, 

 i," -\\/ t " wide, those of the culm filiform or 

 narrowly linear, 2 / -io / long, y t "-\" wide; 

 in pairs, i'-2' long, loose, finally long-exserted 

 on filiform peduncles; rachis slender, flexuous, 

 its joints and the pedicels pubescent with long 

 spreading silky hairs; outermost scale of the 

 sessile spikelet \y 2 "-^" long, scabrous on the 

 keel; awn 6 // ~9 // long, scabrous; pedicelled 

 spikelet a minute scale or wanting. 



In dry or moist places, Pennsylvania to Florida 

 and Texas. Aug. -Sept. 





8. Andropogon Torreyanus Steud. Torrey's Beard-grass. : 



Andropogon flam wv Torr. Am: 



1824. NotMuhl. isi 7 . 

 I Air.iropoyon T 



93- 1 S 4<- 



A ndropogon Jamesii Torr. Marcy '* Rep. joa. l8$ 

 Aitdrofif^iiii MI tnui Hack. 



in DC. Monojf. I'han. 6: 495. 1889. 



Culms erect, i# -3# tall, simple or 

 branched, glabrous, the nodes naked. Sheaths 

 smooth and glabrous, more or less glaucous; 

 leaves s'-f long, 2 "-3" wide, long-acuminate, 

 smooth and glabrous towards the base, scabroos 

 on margins and at the apex, glaucous ; spikes 

 :' i.!-z'long in a terminal long-exaerted panicle 

 2 / -4 / long ; joints of the rachis with a thin 

 translucent median line ; outermost scale of ses- 

 sile spikelet i #"-2" long, about equalling the 

 terminal hairs of the rachis-joints, lanceolate, 

 acute, pubescent at base with long silky hairs ; 

 awn 4 // -8 // long, spiral, bent, scabrous ; pedi- 

 celled spikelet reduced to a single narrow scale. 



In dry soil. Kansas to Aruoaa and Mexico. 



Auff.-Svpt 



5. CHRYSOPOGON Trin. Fund. Agrost. 187. 



Generally tall grasses, ours perennials, with long narrow flat leaves and terminal pani- 

 cles. Spikelets in pairs or 3's, one sessile and perfect, the lateral pedicelled. stsminrtr. 

 empty, or reduced to the pedicel only. Perfect spikelet consisting of 4 Kales, 1 

 outer indurated and shining, the inner hyaline, the fourth awned and subtending a pal 

 perfect flower, or the palet sometimes wanting. Stamens 3. Styles distinct; stigmas plu- 

 mose. Grain free. [ Greek, referring to the golden -yellow hairs on the spikeleta.] 



About 20 species, in temperate and tropical countries. 



