Andropogox. CLXI. GRAMINE^. ^^i 



lets in pairs about 3-flowerecl ; irlinrics both in front, lance-linear, slightly con- 

 nate at base, produced into a scabrous awn ; Jb. smooth ; lower paka awned. — 

 '4 Banks of streams, N. Enj?. to 111., S. to Va. Aug. 



2. E, Canadknsis. (E. pfhiucifolius. U'iUd.) 



St. erect, .smooth, siout, 3— r)f hif,'h; Irs. hmce-lincar, flat, smooth, dark 

 green or often <,'liiucoiis ; .s/y/7.r ratlier spieiuiirii,', 1— H' lout,', generally nodding 

 at the summit; /v/c/t/.s hairv; ypi/cclct.s 2— 5-llowered ; ^lume.'i 5— 7- veined, short- 

 awned, hairy ; A;//Yr ;;rt/m' hairv, awned.— 4 A tall, showy grass, with long, 

 recurved, waving spikes. River banks, Sec., Free Slates and Brit, Am. Aug. 



3. E. vii.i.osus. Muhl. I?ifr Grass. 



St. slender, striate, smooth, "2— 3f high ; Ivs. rough-edged, nubescent above, 

 \' broad; snaths hairy, especially the lower ones; sptke '2i— 3i' long, a little 

 noddinijand spreading; ra<:hi.<i and Jhmrrs hispid, pilo.se; apikclds 1 — 3-dowered; 

 glumes \me:iv ; lower palca with a long, slraii^lit awn.— ^ Dry grounds. Free 

 States. July. 



4. E. Hystrix. Hcd<rehng Grass. 



St. round, smooth, 2— 4f high ; Ivs. lance-linear, carinate, scabrous, gene- 

 rally glaucous and with the .sheaths striate; sjrike 4—6' long, erect; rackis 

 nearly smooth, fle.xuous ; spikdels remote, diverging, almost horizontal, 2—3- 

 flowered; idiimes 0, rarely 1 or 2 ; p. smoothish ; lovxr paka terminating in a 

 very long awn. — % An odd-looking grass, in moist woods. Free States, common. 

 July. 



5. E. sTRiATUS. Willd. Striated Lime Grass. 



St. slender, erect, 8—12' high ; Ivs. and shcatlis smooth, the former lance- 

 linear, acuminate, scabrous on the upper surface; spike erect, 2 — 3' long; invul. 

 4-leaved, strongly veined, 2-llowered, one flower commonly abortive ; spikelets 

 in pairs, somewhat spreading, hispid, each 2-flovvered; awns 3 or 4 times as 

 long as the paleoe.— i]. Mass., Bigetow, to Penn., W. to Ohio, rare. A small 

 and slender species. July. 



Tribe 10. ANDROPOGONE.13.— Inflorescence panicled or spiked. Spike- 

 lets generally in pairs, one sessile and perfect, the other mostly pedicellate 

 and imperfect. Glumes of stouter texture than the paleae. Paleae delicate 

 and membranaceous, the lower commonly awned. 



56. . A N D R O P O G O N. 



Gr. av6pog, of a man, Trwywx', beard; in allusion to the hairy flowers. 



Spikelets in pairs, polygamous, the lower one incomplete, on a plu- 

 mosely bearded pedicel, upper one 1 -flowered, perfect ; glumes sub- 

 coriaceous, awnless ; paleae shorter than the glumes, one generally 

 awned. 



1. A, FURC.\TU.s. Muhl. Forked Spike. 



S/. semi terete above, 4— 7f high; Ivs. lance-linear, rough-edged, radical 

 ones verv long; spikes digitate or fasciculate, in 2s — 5s, 3—5' long, purple; 

 spikelets appressed, abortive one on a plumo.se pedicel, (^ with 2 paleae, awnless, 

 perfect one with 2 unequal glumes ; lower palea bifid, awned between the divi- 

 sions. — % Meadows and low grounds, Free States and Can. Aug. 



2. A. scoPARius. Michx. (A. purpura.scens. Muhl.) Broom Grass. 



St. slender, paniculate, 3f high, branched, one side furrowed, branches 

 fasciculate, erect; /r.s. lance-linear, somewhat hairy and glaucous; spikes s\m- 

 ple, lateral and terminal, on long peduncles, 2 — 3 from each .sheath, purple; 

 spikelets remote, abortive one neuter, mostly with 2 paleae, awned. — %. Woods, 

 U.S. Aug. 



3. A. VlRGINlCUS. 



Ccespitose ; st. subcompressed, 3f high, branches few and short, half con- 

 cealed; lis. linear, lower ones a foot or more long, rough-edged and hairy; 

 sheaths smooth; sp-ikes short, in slender, half concealed fascicles of 2 or 3, late- 

 ral and terminal ; abortive spikckt a mere pedicel, without palca; ; s? monan- 

 drous, with a straight awn. — 91- Swamps, meadows, &c., N. Eng. to Ky. Sept. 



