GIIAM1>'E.£. 273 



finely scrrulnto. /■'/our* in nnnicnlaie rncotnes. Glumes nnrrow Innrroloto, 

 with short awns, keels serrulate- Valeit unolute, 3-a\vncd, the middle one 

 lontrest, conterted. 



(/ July. Loose soils- 12-18 in. 



2 A Stricta. Stem erect, compressed, brnnchinff nt the base, lower joints 

 short. lA'dves glabrous. SA^/Z/i.t longer than the joints, with the throat cili- 

 ate. i'rtniV/*" lonij, erect. i'««/u;i«ir.s scabrou.s. (?/»imf* unet|ua!, uiih si-.'ru- 

 late keels. Paletr with the exterior one hairy at the base. Awtis long, scab- 

 rous. 



% July— Aug. Rocky soils. 2-3 ft. 



3 A SriciFORMis. ^/fm erect, simple, compressed, /yrot^t.^ linear, i^healh' 

 glabrous. Floucra in compound racemes, nppressed. Glumes shorter than 

 the paleu\ urnunated by awns. Pnlca- unciiual, exterior one 3-awncd, with 

 the uilermediare one longest, pubescent at the base. 



% Sept.— O t. Pine barrens. 1-3 ft. 



4 A Gracilis. 5/twi erect, slender, glabrous, branchinsr at the base- 

 Leaves linear, with slieaths shorter than the joints, Ftoircrs in lone spikes* 

 appressed. Glumes equaling t!ie palcfP in length, the exterior nalea involute' 

 banded with liyht and dark spots, 3 awued, the interior palea mmute, or 

 wanting. 



% Sept. — Oct. Common on the sea coast. 10-15 in. 



5 A Lanosa. Stem erect, pubescent at the base. Leaves glabrous be- 

 neath, pubescent above, with scabrous margins. Sheaths lomeniose. Ftov. 

 ers in raceiiK>«e panicles. Glumes acute, compressed, uneijual, exterior palea 

 3-awned, iiiv(>liite, the interior one very small. 



% August—Sept. Sandy ?oils. 2-4 it. 



Gexts XVI CALAxMAGROSTIS. 



Glumes 2, l-flowcrcd, arulc. Pahcr 2, shorter (lian the 

 glumes, surrounded by a woolly piihoscence at the base, dorsal 

 one sometimes awned. 



1 C Americana. Phalaris Americana of Ell. Stem erect, branching, 

 geniculate at the ba.=e wiih summit somewhat scabrous. Leaves glabrous, 

 finear-lan(e(i!ate ; sheath shorter than the joiiu.*. Glumes compressed, with 

 the keel serrulate; the interior one longest. Pulea; with 2 minute accessory 

 valves. 



April— rVIay. Damp soils. 



Genus XVII ANTHOXANTHUM. 



(James 2-3-flowered, hferai florets iinperfocf, with one pa- 

 lea bearded, intermediate florets pert'tel, -'iorier than tlie lat. 

 eral ones. Pale<p obtuse. Stamens 2. S'yhs 2. Panicle 

 contracted. 



1 A Oi)ORA7r.v. Stem erect, scabrous r.t the funmiit. Leaves linear, 

 hairy. Sheath striate, pubescent at the throat. Flotrers in nppre.«!sed pani- 

 cles. G/i/me.* 'acute, membranaceous, hairy, the interior one twice as long 

 as the other. Falta equal, villous, with an awn at the base of each. ^Styles 

 2, filiform ?,weet scented Vernal arass. 



% May— June. Common in the low country. Introduced. 12-15 in. 



Gents XVIII. AIRA, 



Glumes 2, 2-.8-flo\vercd. Pnlecr 2-equal, enclosing the seed, 

 exterior one usually awncd. Panicle compound. 



