112 BU1.LETIN VII. 1. 



5- Flowering glumes obtuse, not exceeded by the blunt palea . 



5. G. FLUITANS. 



5. Flowering glumes acute, shorter than the long-pointed, acute 

 palea 6. G. acutiflora. 



1. Glyceria aquatica Smith. Reed Meadow-grass. 



Plate XXXVIII. Figure 152. 



A stout perennial, three to five feet high, with an ample, open 

 panicle, and rather broad, flat leaves. Sheaths mostly smooth and 

 closed nearly to the top; ligule about one line long; leaf-blade three 

 to six lines wide, ten to twenty inches long, smooth on the lower 

 surface, scabrous above. Panicle oblong-pyramidal, eight to sixteen 

 inches long, branches finally widely spreading. Spikelets nar- 

 rowly oblong, five- to seven-flowered, usually purplish, one and 

 one-half to three lines long; empty glumes ovate-lanceolate, ob- 

 tuse or acute, slightly unequal, the second the larger, about one 

 line long; flowering glume ovate, obtuse, about one line long, 

 strongly seven-nerved. Paleas two-toothed, about equalling their 

 glumes. 



Wet grounds. Reported by Dr. Gattinger as growing near Nash- 

 ville. Probably not uncommon in other parts of the State. 



2. Glyceria nervata Trin. Fowl Meadow-grass. 



Plate XXXIX. Figure 153. 



A leafy perennial, one to three feet high, with an expanded, 

 nodding panicle. Sheaths scabrous; ligule one to two lines long, 

 broadly truncate; leaf -blade two to five lines wide, six to twelve 

 inches long, more or less scabrous above, abruptly acute. Panicle 

 three to twelve inches long (usually four or five inches), pyra- 

 midal, the spreading branches usually drooping. Spikelets one to 

 two lines long, three- to seven-flowered, obtuse; empty glumes, 

 rather broadly ovate, less than one-half a line long; flowering 

 glumes truncate-obtuse, three-fourths to one line long, and 

 strongly seven-nerved. Paleas two-toothed. Very variable in size. 



Common in moist meadows over the State, and for such localities 

 is regarded of some agricultural value. We do not know that any 

 attempts have been made to cultivate it. 



3. Glyceria elongata Trin. 



Plate XXXIX. Figure 154. 



An erect perennial, two to three feet high, with flat leaves and 

 narrow, rather densely-flowered, elongated panicles. Sheaths 

 smooth, closed nearly to the summit, where there is a cartilaginous 

 border; ligule very short; leaf-blade two to three lines wide, six to 

 twelve inches long, smoothish below, very scabrous on the upper 

 surface. Panicle eight to twelve inches long, drooping at the 

 apex, the erect branches flower-bearing to the base, the short 

 pedicels appressed. Spikelets three- to four-flowered, about two 

 lines long; empty glumes acute, the second the larger, and nearly 

 as long as the first floral glume; flowering glumes broadly ovate, 

 sub-acute, rigid, about one line long, seven-nerved. 



