INDEX TO BOTANY. 
[The regular names of Species, Genera, and Natural Orders are in Italic. 
are in Roman.*'] 
Page. 
Abies balsamea _ _-_._ 141 
bracteata__ 140 
Douglasii ...... 141 
Abronia arenaria ____ 131 
cycloptera .. 131 
mdlifera _ 131 
micrantha. 131 
Abutilon parvulum _ 72 
Accena pinnatifida_ 84 
trifida_.___...._,_ 84 
Acanthogonum rigidum _ 133 
Acer glabrum. 74 
macrophyllum ___ 74 
Negundo. 74 
tripartitum . 73 
Aceracece .. 73 
Acerates cor difolia _______ _ 
Achillea Millefolium __ ....... 109 
Achyropappus __ 106 
Achyrachccna mollis ___ 108 
Aclcea alba___ 63 
rubra_.....__-_ 63 
spicata .. 63 
Aciinella acaulis _____ 108 
argentea_ 108 
glabra.___ 108 
leptoclada __ 107 
Mchardscmii ___ 107 
scaposa _...._...___... 108 
Adenostoma fasciculate, ___..___ 84 
Adiantum Chilense _____ 160 
pedalum _,. _______ 160 
Actinomeris squarrosa _____ 104 
iEgilops Hystrix_ 157 
AEsculus Californica ___,,_ 74 
Jlava ___....._.....- 74 
Agraulus breyifolius... 154 
Agrostis microphylla _ 154 
Air a elongate ___ 155 
Alchemilla arvensis __ 84 
cuneifolia __ 84 
occidentalis __ 84 
Algarobia glandulosa ...._ 82 
Alisma rostrata_ 143 
Alismacece __ 142 
Allosorus andromedcefolius _ 159 
mucronatus _ 160 
Synonyms and names of plants otherwise noticed 
Page. 
Allium acuminatum *..... 148 
148 
148 
148 
148 
137 
154 
154 
69 
69 
130 
130 
130 
130 
130 
151 
102 
102 
106 
85 
144 
86 
99 
78 
98 
77 
124 
124 
73 
118 
159 
159 
159 
159 
159 
159 
159 
61 
135 
119 
Antennaria argentea .. 110 
luzuloides -- 110 
Anthericum pomeridianum. 148 
Anliclea Fremonlii ..-. 144 
Nuttallii -- 144 
Anthopogon lepturoides. 156 
Aphanocalais - 113 
in such cases. This was discovered after the index was set up, 
to his distance from the press, and the rapidity with which 
‘From some misunderstanding, the types have been reversed from their ordinary use 
and it was too late to make the change. The author thinks it is proper to slate that, owing 
Hie printing was done, he was not able to revise the proofs. 
22 r 
cernuum 
ampledens 
falcifolium 
tribractealum 
Alnus viridis 
Alopecurus borealis 
geniculalus 
Alsine Douglasii 
Michauxii 
Amarantacece 
Amarantus albus 
grtecizans 
relrojlexus 
tamariscinus 
Amaryllidacea 
Ambrosia aptera 
coronopifolia 
Amblyopappus Neo-Mexicanus 
Amelanchier Canadensis 
Amiantanthus Nuttallii 
Ammannia latifolia 
Ammodia Oregana 
Amorpha canescens 
Amphiachyris dracunculoides 
Ampldcarpcca monoica 
Amsinckia spectabilis 
intermedia 
Anacardiacece 
Anagallis arvensis 
Andropogo/i avenaceus 
furcalus 
glaucus 
Jamesii 
nutans 
scoparius 
Torreyanus 
Anemone nemorosa 
Anemopsis Calif ornica 
Anoplanthus 
