?0A. TRIANDRIA. DIGYNIA. m 



tip, obscurely 5-nerved; root creeping. Schrad. Fl. Germ, 

 I. p. 299. V.serotina 13. palustris R o e m. 4-' Schult, IK 

 p. 553. P. hydrophylla P ers. Spi. 1. p. 89. P. palustris 

 Muhl. Gram. p. 150. P. crocata Mick. FL I. p. 68. 

 Root perennial. Culm 2 — 3 feet high, erect. Leaves about a foot 

 long, narrow, flat, smooth. Siifiule elongated, lacerate. Panicle 

 8 — 10 inches long, much branched, appressed when young, a 

 little nodding, semiverticillate. Cahjx often 2-flovvered, nearly 

 as long as the lowest floret, very acute, compressed, scabrous 

 on the keel. Corolla lanceolate, rather obtuse ; valves entire 

 on the margin ; the superior one very narrov/. Stamens 3 ; 

 anthers yellow. 

 Hab. In wet meadows ; common. June. Sometimes called 

 Red-tofi, 



12. P. nemoralis L, : panicle attenuated, weak ; branches 

 llexuous ; spikelets ovate, about 3-flowered ; florets loose, 

 slightly webbed, acute, obsoletely nerved ; stipule almost 

 wanting. Schrad. Fl. Germ. I. p. 301. Willd. Spec. 

 J, p. 399. Smith Fl. Brit, I. p. 106. Eng. ^,nt. t. 1235, 

 P ur s h FL I. p. 79 ^ P. nemoralis «. vulgaris R o e m. 4" 

 Schult. II. p. 545. 



J^oot perennial, creeping. Culm 2 feet high or more, slender. 

 Leaves narrow, pale green, and with the sheaths smooth. 

 Panicle 5 — 8 inches long, nodding ? branches capillary, in 

 pairs or ternate. Spikelets not numerous, all pedicellate and 

 situated towards the extremities of the branches; ^ore^s much 

 spread and at length distant on the rac/iis. Glumes linear- 

 lanceolate, very acute, without nerves ; one of them longer. 

 Corolla lanceolate ; inferior valve very indistinctly 5-nerved, 

 smooth on the sides; superior valve one third shorter than the 

 other, entire on the margin. Stamens 3 ; anthers yellow. 

 Stigmas white. 



Hab. Near Williamstown, Massachusetts. De we y. Deer- 

 field. Coo ley. Cambridge, New-York. Stevenson, 

 New-Haven, Connecticut. M o ns o n. 



13. F,7ierrata Willd.: panicle equal, diffuse ; branches 

 weak and at length pendulous; spikelets 5- flowered ; florets 

 free, conspicuously 7-nerved, obtuse. Willd. Spec. L 

 p. 389. Pursh Fl. J. p. 79. Muhl. Gram. p. 140. 

 Roem. ir Schult. II. p. 550. P. striata Mich. Fl. I. 

 p. 69. P. lineata P ers. 1. p. 89. Briza canadensis Mutt. 

 Gen. I. p. 69. nee Supp. 



Root perennial. Culm 3 — 4 feet high, very smooth. Leaves 

 flat, narrow-linear, about a foot long, carinate, smooth. Stifiule 

 ovate, much lacerate. Panicle large an 1 capillary, erect when 

 young; branches 2 or 3 together, semiverticinate, angular. 

 S/iikelets ovate, compressed, 4 — 6-flowered ; florets distinct, 

 deciduous. Calyjc very small ; glumes lanceolate, acuminate, 



