VI INDEX. 



Part. Plate. 



Heteropogon con tortus I 16 



Hilaria cenchroides I 10 



rnutica I 11 



rigida II 2 



Lycurus phleoides II 15 



Melica diffusa I 49 



Porteri I 50 



Miihlenbergia Buckleyana , II 12 



depauperata II 14 



distichophylla I 25 



gracilis I 26 



Neo-Mexicana II 13 



Schaffneri II 14 



Munroa squarrosa II 31 



Oryzopsis fimbriata II 11 



membranacea II 10 



Panicum bulbosum I 2 



ciliatissimum . : I 3 



lachuanthum I 4 



Paspalum distichum II 3 



lividum II 4 



pubiflorum II 5 



Phalaris intermedia, var. angusta II 6 



Pappophorum apertum II 17 



Wrightii II 28 



Schedonnardus Texanus II 24 



Scleropogon Karwinskianus II 30 



Setaria caudata I 5 



Sporobolus argutus II 16 



Buckleyi II 17 



interruptus II 18 



tricbolepis II 19 



Wrightii II 20 



Stenotaphrum Americanum I 8 



.Stipa flexuosa I 24 



pennata II 8 



Scribneri II 19 



Thurberia Arkansana I 9 



Trachypogon polymorphus I 17 



Tragus racemosus I 14 



Trichloris pluriflora II 24 



verticillata '. II 25 



Triodia acuminata II 32 



albescens II 33 



eragrostoides II 34 



grandiflora II 35 



Nealleyi II 36 



pulchella II 37 



stricta II 38 



Texana II 39 



trinerviglumis II 40 



Trisetum Hallii • '. •• II 21 



interruptum II 



OO 



