348 



Sporobolus curtissii Small 124 



cryptandrus A. Gray . . 456 

 doniingensis Kunth. . . 457 



floridanus Chapm 123 



flondanus curtissii 



Vasey 124 



heterolepis A. Gray. . . 121 



indicusB. Br 126 



interruptus Vasey 122 



jonesii Vasey 460 



junceus Kunth 455 



ligulatus Vasey and 



Dewey 461 



longifolius Wood 120 



nealleyi Vasey 462 



serotinus A. Gray 454 



simplex Scribn 468 



texanus Vasey 463 



thurberi Scribn 465 



utilisTorr 467 



A-aginaeflorus Wood . . . 466 



virginicus Kunth 470 



vrrightii Scribn 458 



Stapfia colusana Davy 517 



Stenochloa californica Xutt 239 



Stenotapbrum am erica n u m 



Scbrank 72 



secundatum 



Kuntze 72 



Stipa avenacea Linn 423 



avenaceoides Nash 424 



barbata Michx 423 



bloomeri Boland 433 



capillaris Lam 448 



comata Trin. & Rupr 425 



coronata Tburber 434 



hassei Vasey 427 



jvncea Mx 442 



kingii Boland 90 



macouni Scribn 431 



melanocarpa Muhl 323 



membranacea Pursb 97 



mongolica Trin 91 



neo-niexicana Scribn 428 



occidentals Tburb 436 



oregonensis Scribn 426 



parishii Vasey 439 



pennata var. neo-mexicana 



Vasey 428 



pringlei Scribn 429 



Stipa richardsoni Link 435 



richardsonii A. Gray 431 



robusta Xntt 437 



scribneri Vasey 438 



sibirica Tburb 433 



spartea Trin 89 



speciosa Trin. 6z Rupr 440 



stricta Vasey 426 



tenuissima Trin 432 



vaseyi Scribn 437 



viridula Trin 430 



viridula var. robusta Va6ey . 437 



Streptachne jioridana Chapm 422 



Syntherisma linearis Xash 37 



p rcecox Walt 339 



szrotina Walt 38 



Thurberia arlcansana Benth 133 



Trachynotia polystacfiya Michx . . . 172 



Tragus occidentalis Nees 324 



Trichachne tenuis Nees 343 



Trichloris blanchardiana Scribn . . 189 



fasciculala Fourn 189 



pluriflora Fourn 190 



Tricuspis raonstrosa Munro 225 



mutica Torr 505 



purpurea A. Gray 509 



Triodia acuminata Vasey 235 



albescens Vasey 233 



ambigua Vasey 232 



decumbent Beauv 508 



eragrostoides Vasey & 



Scribn 230 



mutica Scribn 505 



nealleyi Vasey 234 



pulohella HBK 236 



stricta Vasey 507 



texana S. Wats 231 



triner riglumis Vasey 506 



Triplasis americana Beauv 237 



purpurea (Chapm.) 509 



Tripsacum cylindricum Michx 307 



dactyloides L 1 



Trisetum argenteum Scribn 498 



canescens Buckl 163 



cernuum Trin 164 



elongatum 162 



interruptum Buckl 162 



montanum Vasey 161 



muticum Scribn 496 



palustre Torr 159 



