

A 7 



4o 



Schleropogon 





Russian Oliv© 



114 



brevif ol ius 



36 



Russian Thistle 



59 



ocounng hush 



2 







Scratch Grass 



24 



oacaton 





ocrophulariac-eae 



nor" 



125 



a nca ±1 



o f 



Sedges 



41,42 



a A „ n f 



i - r ±d.n c 



oJ } 4U 



Seepwced 



^A 



Sage 





Seep v/illow 



T 7 T 



lol 



.u 1 a. c Jc 



160 



Selenium 



94 



Sagoretia wrightii 



109 



oenocio filnolius 



134, 135 



Salicaceae 



4o-50 



bcnsixive—uomt; vetcii 



yo 



oalix 





Serviceberry 



70 



bonplandiana var. 





oe car la 





tourney i 



49 



macro stachya 



36, 37 



exigua 



49 



Shad Bush 



58 



exigua var. 



A C\ 



49 



Sh( phcr d ' s Purse 



61 



goodd ingii 



&y 



bhoph ord i a 





nigra 



4o 



argontea 



114, lib 



taxii oJ. la 



49 



c ana dens is 



t i r 



115 



oaisoia ::aii 



59 



rotundii olia 



115 



oait U'UsJi 





Shipmast Locust 



90 



Australian 



57 



bhru b by o mquel oil 



71 





c; q 



Silve rberry 



T T /I 

 114 





it. o 



bo 



Silver— loafed Poplar 



4o 





58, 59 



oimarubaceae 



98-99 



rim; tall ' s 



57, 58 



oimmonasia 





rn 



iexas 



59 



calii omica 



102, 103 



oalt ^edar 



111 



-'lphonoglossa 





oambucus 





long it olia 



127 



caerul ea 



TOO 



j. c y 



S i symbr lum 



<^ T 



bl 



cacrulea var. 







1 7/1 



lo4 



arizonica 



TOO 



12? 



Skunk C abb ago 



4b 



me xi c ana 



icy 



O j. v- 1 1 - Lc LO^lcllX 



T T 



1 1 



n o c "Tug x i c ana 



TOO 



i ^ y 





A 1 



o an. dp a per M an t 



113 



Snak o — i' ' g c d s 



Loo 



°anc. berbenas 



60, 61 



ooapberry lroe 



107 



Sangre de Cristo 



T AT 



101 



Solonaceao 



1 c4 - 1 b 



Sapindaceao 



106-107 



Solidago spp» 



132 



Sapindus 





Sophia 



61 



druromondll 



107 



Sophora 





oapium biloculare 



100 



a.rizo?iica 



82 



Sapotaceae 



117-118 



secunciif lor a 



82 



Sarcobatus 





sericea 



82, 83 



ve rn i c u 1 a t u s 



60 



stcnophylla 



82 



Saururaceae 



C A T rz 



04 ,oo 



S o rb us s c opul i na 



( 6 



Saxlf ragaceae 



65-67 



Sotol 



43,44 



3cb.ism.us barbatus 



55, 36 



Spider Grass 



10 



Schott's Yucca 



45 



Spike Dropsood 



37,33 



Scirpus 





Spike Pappus 



33 



occidental is 



42 



Sporobolus airoides 



37 



-150- 



