GRASS FAMILY. 

 7. Panicularia pallida (Torn) Kuntze. 



Pale Manna-gnus. 



Windsoria pallida Torr. Cat. N. Y. 91. 1819. 

 Glyceria pallida Trin. Bull. Acad. Sci. St. Petereb i- 



68. 1836. 

 Panicularia pallida Kuntze, Rev. Gen. PI. 783. 1891. 



Pale green, culms i-3 long, assurgent, simple, 

 smooth and glabrous. Sheaths loose, shorter than 

 the internodes; ligule 2 // -3 // long, acute; leaves 

 2 / -6 / long, i // -2 // wide, smooth beneath, rough 

 above; panicle i> / -7 / in length, the branches 

 spreading, ascending or rarely erect, often flexu- 

 ous, i / -2 / long; spikelets 4-8-flowered, *%"-$%" 

 long; empty scales unequal, the first i -nerved, ob- 

 tuse, shorter than the 3-nerved and truncate sec- 

 ond; flowering scales \W-\W long, truncate 

 and denticulate at the apex, sharply and distinctly 

 7-nerved, with plain furrows between the nerves. 



In shallow water, New Brunswick to Ontario, south 

 to Virginia, Tennessee and Indiana. Ascends to 2000 

 ft. in Pennsylvania. July-Aug. 



8. Panicularia fluitans (L,.) Kuntze. Floating Manna-grass. (Fig. 491.) 



Festuca fluitans I.,. Sp. PI. 75. 1753. 



Glyceria fluitans R. Br. Prodr. FT WOT. Hoi! 1: 17$. 1810. 



Panicularia fluitans Kuntze, Ri -Hj. 1891. 



Culms 2-5 long, flattened, erect or decumbent, 

 usually stout, simple, smooth and glabrous, often root- 

 ing from the lower nodes. Sheaths loose, generally 

 overlapping, smooth or rough; ligule *"-$" long; 

 leaves 5'-! long or more, 2"-6" wide, scabroo*, 

 often floating; panicle 9'-i>a long, the branches, at 

 least the lower ones, at first appressed, later ascend- 

 ing, and 3 '-6' long; spikeleLs linear, 7 ij-flowcfcd, 

 4 // -i2 // long; empty scales unequal, i-nenred, the 

 lower acute or obtuse, the upper obtuse or truncate; 

 flowering scales i#"-3" long, oblong, obtuse or 

 truncate, more or less scabrous, sharply 7-nermL 



In wet places or in water. Ni-wfiiTi<ll.iml to British 

 Columbia, south to New Jersey, Kentucky. Iowa and 

 California. Also in Kurope. July Sept. 



9. Panicularia acutiflora (Torr.) Kuntze. 

 Sharp-scaled Manna-grass. (Fig. 49 2 -) 



Glyceria acutiflora Torr. Fl. U. S. i: 104. 1824. 

 Panicularia acutiflora Kuntze, Rev. Gen. PI. 782. 1891. 



Culms i-2 tall, flattened, erect from a decumbent 

 base, simple, smooth and glabrous. Sheaths loose, 

 generally a little exceeding the internodes, smooth 

 and glabrous; ligule 2" long, truncate; leaves 3 '-6' 

 long, 2 // -3 // wide, smooth beneath, rough above; 

 panicle 6 / -i2 / in length, the branches erect or ap- 

 pressed, 2 / ~4 / long; spikelets linear, 5-i2-flowered, i'- 

 i^' long; empty scales acute, smooth; flowering 

 scales about 4" long, lanceolate, acute, scabrous, ex- 

 ceeded by the long-acuminate palets. 



In wet places, Maine to southern New York, Ohio and 



"Tennessee. Local. June-Aug. 



