348 



Bporobolus curtissii Small 124 



(■ryptandrus A. Gray . . 456 

 •loraingensis Kiinth. .- 457 



fliividanus Chapni 123 



jloridanus curtissii 



Vasey 124 



heterolepis A. Gray... 121 



iiKlicnsR. Br 126 



intcrruptus Vasey 122 



jonesii Tasey 460 



junccus Kunth 455 



ligiilatus Vasey and 



Ue way 461 



lougitblius Wood 120 



nealleyi Vasey 462 



serotinus A. Gray 454 



simplex Scribn 468 



texauus Vasey 463 



thiirberi Scribn 465 



iitilis Torr 467 



vaginietlorus Wood . . . 466 



virgiuicus Kuntb 470 



•wrigbtii Scribn 458 



Stapfia coh(sana Davy 517 



Stenochloa calif ornica Xutt 239 



Stenotapbruui a in e r i c an u m 



Schrank 72 



s e c II n d a t u m 



Kuntze 72 



Sti'pa aveiiacea Linn 423 



aveuaceoides Nash 424 



baibata Michx 423 



bloomori Boland 433 



capillarisLani 448 



comata Tiiu. .S; Itujir 425 



coronata Tliurbei- 434 



hassei Vasey 427 



jtincea tilx 442 



kingii Bolaud 90 



macouiii Scribn 431 



vielaniicari)a iluhl 323 



7nemhranacea Pursh 97 



mongolica Trin 91 



neouiexicaua Scrilm 428 



occidentaliH Tliiirl) 436 



oregoni'usis Scril)u 426 



parishii Vasey 439 



p en not a var. neo-mexicana 



Vasey 42s 



pringlei Scribn 429 



Stipa richardsoiii Link 435 



richardsonii A. Gray 431 



■robusta Kutt 437 



scribueri Vasey 438 



sibirica Thurb 433 



spartea Trin 89 



speciosa Trin. & Kupr 440 



stricta Vasey 426 



tenuissima Trin 432 



vaseyi Scriljn 437 



viridula Trin 430 



viridula var. robusta Vasey . 437 



Streptachne jioridana Cbapm 422 



Syntherisma linearis Nash 37 



^u«'CO.r AValt 339 



sfj-o^um Walt 38 



Thurberiaarkansanalicuxh 133 



Trachynotia polystachya Michx . . . 172 



Tragus occidentaUs Xecs 324 



Trichachne teimis Nees 343 



Trichloris blancbardiana Scribn . . 189 



fasciculala Fouru 189 



pluriflora Fourn 190 



Tricuspis monstrosa Muuro 225 



vtuticaTorr 505 



imrpnrca A. Gray 509 



Triodia acuminata Vasey 235 



albescens "^'asey 233 



ainbigua Vasey 232 



dccumbens Beauv 508 



eragrostoides Vasey it 



Scribn 230 



mutica Scribn 505 



nealleyi Vasey 2;;4 



]puUhclIa HBK 230 



stricta Vasey 507 



texana S.Wats 231 



trinervighimis Vasej' 506 



Triplasis americana P.eauv 237 



imrpurea (Chapm.) 509 



Tripsacuni cylindricitm Michx .... 307 



dactyloides L 1 



Trisetum argenteuni Scribn 498 



canescens liuckl 103 



cernuum Trin 104 



elunr/atum 162 



interruptum Buckl 1G2 



niontauuni Vasey 161 



iiiuticuni Scribu 490 



l)ahi8tro 'I'orr 150 



