346 



Panicum sphserocarpon var. flori- 

 danum 

 Vasey.. 361 



sphagnicolum Nash 362 



stenodes Griseb 46 



subspicaturn Vasey 355 



tenerrimum Kunth 343 



texanum Buckl 44 



tseugetorum Nash 370 



urvilleauurn Kunth 345 



verrucosum Muhl 49 



verticillatum Linn 403 



villosum Ell 367 



virgatuin L 54 



viride L 65 



\iscidum Ell 386, 387 



walteri Poir 396 



webberianum Xash 377 



werneri Scribn 364 



wilcoxianum Yasey 391 



wrightianum Scribn 357 



xanthopysum A. Gray. . . 399 



Pappophorum apeitum Scribn 222 



boreale Torr 221 



wrightii S. Wats 221 



Paspalum bifid um Xash 334 



blodgettii Chapni 332 



boscianum Flugge 327 



compressum Xees 24 



curtissianum Steud 329 



difforme Le Conte 29 



digitaria Poir 23 



dilatatum Poir 31 



distichum L 25 



elliottii S. Wats 23 



floridanum Michx 30 



fluitans Kunth 325 



giganteuni Vasey 333 



heve Michx 27 



lividum Trin 330 



membranaceum Walt... 326 

 monostachyuni Vasey.. 335 



mucronatum Muhl 325 



ovatum Nees 31 



paspaloides Scribn 23 



platycaule Poir 24 



plicatulum Michx 28 



pubiflorum Rupr 328 



purpurascens Ell 327 



racemulosum Chapm . . . 334 

 scrobiculatum Linn 331 



Paspalum setaceum Michx 26 



Taseyanum Scribn 328 



virgatum Walt 327 



pxibiflorum 



Vasey 328 



walterianum Schultes . . 326 



Pennisetum setosuui Rich 71 



Phalaris amethystina Trin 79 



angusta Nees 81 



arundinacea Linn 411 



caroliniana Walt 80 



erucceformis Linn 208 



intermedia Bosc 80 



a n g u s t a 



Chapni 81 



lemmoni Yasey 412 



villosa Michx 337 



Phleum alpinum Linn 451 



crinitum Roxb 473 



pratense L 114 



schcenoides L 113 



Phippsia algida E.Br 118 



Phragmites communis Trin 229 



vulgaris B. S. P 229 



Pleuraphis rigida Thurb 21 



Pleuropogon californica Vasey 529 



refractura Benth 263 



Poaalpina L 272 



alsodes A. Gray 536 



ambigua Ell 232 



annua Linn 533 



arachnifera Torr 542 



argentea Howell 560 



arida Vasey 277 



bolanderi Vasey 545 



bigelovii Yasey & Scribn 534 



brevifolia Muhl 276 



buckleyana Nash 278 



capillaris Scribn 556 



capillaris Linn 514 



chapmaniana Scribn 271 



ciliaris L 248 



compressa Linn 544 



conferta Ell 246 



cusickii Vasey 555 



debilis Torr 535 



distans L 571 



douglassii Nees 562 



elongata Torr 282 



fendleriana Vasey 543 



fulva Trin 564 



