INDEX. 



[Synonyms and pages referring to descriptions of species are in italics.] 



Aira eaespitosa L 



Anisantha C. Koch 



Avena symphicarpi Trin. 



Bromopsis Fourr 



BromusL 



Page. 



8 



9 



24 



9 



12 



aleutensis Trin 54, 57, 59 



altissimiis Pursh 40 



arduenmensis Diim 9 



arvensis L 8, 17, ^0, 64 



asper Murr 9, 30, 63 



barbatoides Beal 24 



barbatoides sulcatus Beal 24 



breviaristatus Buck! 53 



breviarisiatus (Hoolf.) Buckl 54 



brizseformis Fisch. & Mey 2-2 



californicus Nutt 60 



canadensis Mx 31 



carinatus Hook. & Arn 54, 59 



arizonicus Shear 61 



californicus (Nutt.) Shear 60 



densus Shear 61 



hookerianus (Thurb.) 



Shear 55, 59, 60 



linearis Shear 61 



cathariicus Vahl 40, 50, 51 



ciliatus Muhl 34 



ciliatus L 30, 3J, 32, 33, 44, 55 



glaberrimus Suksdorf 44 



lat iglu m j.s Scribn 40 



pauciflorusYas 43 



scariosus Scribn 32 



montan its Vas 35 



minor Munro 37 



laeviglumis Scribn S2 



porter i Rydb 40 



purgans A. Gray 39 



ligidatu^ Vas 43 



commutatus Schrad 18 



danthonise Trin 9 



dfbilis Nutt 43 



depauperatus J. S. Presl 63 



erectus Huds 9, -J6, 49 



giganteus L 63 



glaberrimus Koch 44 



gussoni Pari 27 



hirtiis Lichtst 23 



hookerianus Thurb 60 



minor Scribn ,59 



hordeaceus L 12, 2S 



20796— No. 23 5 



Page. 

 Bromus hordeaceus glabrescens ( C o s s . ) 



Shear 12,18,20 



intermedins (Guss. ) 



Shear 19 



inennis Leyss 9, 12, 47, 49, 50 



intcrmedius Guss 19 



kalmii A. Gray 31,54,35 



major Vas 35 



occidentalis Vas 35 



portcri Coult 35 



laciniatus Beal 62 



Isevipes Shear 37, 44, 45 



macounii Vas 46,48 



madritensis L 12,35,28 



marginatus Nees 53, r>^, 58, 61 



latior Shear 12, 55 



seminudus Shear 55,62 



maximus Desf 12, 26 



gussoni Pari 27 



micranthus minor Desv 37 



mollis L 8, 17, 18 



glabrcscetis Coss 20 



montanus Retz 35 



multiflorus Scribn 56 



n itens Nutt 60 



orcuttianus Vas 42, 45 



grandis Shear 43 



oregonus Nutt 59 



pacificus Shear 33 



patulus Mert. & Koch 20, 22 



pauciflorus Nutt 53,54 



polyanthus Scribn 54, 56 



paniculatus Shear 57 



pontica Koch 9 



porteri (Coult.) Nash 12,34,55,41 



frondosus Shear 37 



havardii Shear 37 



lanatipes Shear 57, 41 



pumpellianus 12, 47, 45, 50 



melicoides Shear 50 



tweedyi Scribn SO 



purgans Torr 34 



purgans L 32, 59, 40 



incanus Shear 42 



latiglumis (Scribn.) Shear. 40, 4i 



longispicata Hook 32 



pallidus Hook 34 



purpurascens Hook 48 



texensis Shear t,i 



65 



