418 gp.aminej-:. 



23. GLYCERIC, R. Brown. Manna-grass. 



Gr. glulczros, sweet; alluding to the sweet-tasted grain. 



Spikelets mostly terete, long, linear, many-flowered ; 

 RACHis jointed. Glumes 2, membranaceous, nearly equal, 

 pointless. Pale.e somewhat chartaeeous, nearly equal, 

 nuked, the lower rounded on the back, strongly 7-nerved, 

 the upper 2-l<eeled. Stamens 3 or 2. Stigmas decom- 

 pound. Grain oblong. — Perennial smooth marth-gra 

 witth siinple culms fiom running ro-rf-ducks, jj.it Laves and ncarfy 

 entire sheaths ,• the panicle loose and open. 



1. G. fluitaxs, R. Brown. Common Manna grass. 



Panicle 1-ffl lied; spikelets 7 to 13-flowered, appresscd; lower 



palace oblong, obtuse. 



Shallow water, common. June. July. C , 2 to 15 feet bi^h, from a 



creepki;.' mat. L fcud rather I i Panic.e 1- to 16 



inches long, slender, partly concealed in tl.e upper sheath. 



2. G. obtusa, Trin. Obtuse- Manna-gran. 



Panicle dense, narrowly oblong rate, G to 7-2owered; glumes scarions ; 



lewtr p.dcr ovale,, obtuse, tl.e upper a3 long when old. 



Swamp*, rare. Au 4 '.. Sept. Culm stout, 1 to 2 feet high, very leafy. Leaves 

 linear, long, smooth. - t • i inches long, many-flowered. 



3. G. elongata, Trin. LoTUf-pa-nicled Manna-grass. 



Panick narrowly racemos ■, elongated, so::. 1. recurving; the branch- 



es appressed, bearing the 3 f o -i keleta nearly to the base ; IjWtr pedem 



obiong-ovat:'. obtufe, rather long upper. 



Wet woods, com:. . simple. Lf ivex 1 foot or 



more long, rough. PunicU 1 foot loug. SpikeUU pale, wilh short pediceiicd towers. 



4. G. NERYATA, Trin. Manna-grass. 



Pt.nicle diffuse, I Bnehes capillary, at length droopi l Tery 



numerous, ovate oblong, ' ed ; pafareoral, obtuse, nearly equal in I 



Moist meadows; common. June* Culm ereet, 1 to 3 fe-t bi;_h. / 

 long, narrow-linear, tat, smooth. Punicte large, broad and open, often pnrjlMJI 



24. POA ; Linn. Meadow-grass. Spear-grass. 



An ancient Greek name for grass. 



Spikelets ovate or oblong, compressed, few-flowered, in 

 an open panicle. Glumes 2, mostly shorter than the flow- 

 era. Paleje nearly equal, membranaceous, awnless, often 

 with a villous web at the base; the lower one keeled or con- 

 cave; upper oue 2-keeled. Stamens 2 or 3. Stigmas 

 plumose. GRAIN obloug. — Grasses, with tufted cw'ms, 

 smooth usually flat and soft leaves } and the spikelets in diffuse 

 or contracted panicles. 



