346 



Panicuin sphitrocarpon var. liori- 

 d a u u m 

 Vasey.. 361 



sphagnicolum Nash 362 



steuocles Oriscb 46 



subspicatuiu Vasey 355 



U-nerriiuuiu Kuntb 343 



texanum Biickl 44 



tseu£retorum Nash 370 



urvilleauuin Kunth 345 



verrucosiini iliihl 49 



veiticillatum hinn 403 



villosuni Ell 367 



virgatum L 54 



viiideL, 65 



■viscidum Ell 386, 387 



ualteri Poir 396 



webberiauum Nash 377 



werneri Scribn 364 



wilcosianum Vasey 391 



wrightiannm Scribn 357 



xauthopysum A. Gray. . . 399 



Pappophoruiu npertum Scribn 222 



boreale Torr 221 



wrightii S.Wats.... 221 



Paspaluiu bitidiim Nash 334 



blodgcttii Chapm 332 



boscianum Flugge 327 



compressuni Nees 24 



curtissianmu Steiid 329 



ditToniie Lc Conte 29 



d'njita lia Poir 23 



dilatatum Poir 31 



distichum L 25 



elUottii S. Wats 23 



floridanuni Michx 30 



fluUans Kunth 325 



giganleum Vasey 333 



lacivoMiehx 27 



li vidum Triu 330 



njembranaceum Walt. . . 326 

 ni«n()staihyiini Vasey.. 335 



mucronatiim ^luhl 325 



ovatum Nees 31 



paspaloides Scribn 23 



■plattjcaulc Vo'iv 24 



]dicatuliini Michx 28 



pubijlorum Ruin- 328 



purpurascens Ell 327 



racemiilomnii Cliapni . . . 334 

 scrobiculatum Liun 331 



Paspalum setaceum Michx 26 



vaseyanuni Scribn 328 



virgatum Walt 327 



puhiflo rv,in 



Vasey 328 



walterianum Schultes . . 326 



Pennisetum setosuiii llicb 71 



Phalaris aiuethystina Trin 79 



angustaNees 81 



arundinacea Linn 411 



caroliuiana Walt 80 



e;'wtf«/ormis Linn 208 



intennedia Bosc 80 



a n g u s t a 



Chapm 81 



lemnioni Vasey 412 



villosa Michx 337 



Phleum alpinum Linn 451 



crinitum Eoxb 473 



pratense L 114 



schcenoides L 113 



Phippsia algida R.Br 118 



Phragmites communis Trin 229 



vulgaris B. S. P 229 



Pleiiraphig rigida Thurb 21 



Pleuropogon californica Vasey 529 



refraclum Benth 263 



Poa alpina L 272 



alsodes A. Gray 536 



amUgua Ell 232 



annua Linn 533 



arachnifera Torr 542 



argentea Howell 560 



arida Vasej' 277 



bolandsri Vasey 545 



bigelovii Vasey & Scribn 534 



brevifolia Muhl 276 



buckleyana Nash 278 



capillariis Scribn 556 



capillaris Linn 514 



chapmaniana Scril)n 271 



ciliaris L 248 



conipressa Linn 544 



confevta Ell 246 



cusickii Vasey 555 



deliilis Torr 535 



distans L 571 



douglassii Nees 562 



elongata Torr 282 



feudleriana Vasey 543 



fuba Trin 564 



