( 355 ) 



OCTANDRIA 36 



DI-TRIGYNIA 38 



MONOGYNIA 36 



TETRAGYMA, 38 



(Enauthe 28, 178 



Califoriiica 178 



(Enothera 37, 241 



bieuuis 241 



Califoriiica 242 



Cheiranthifolia 242 



dentata 242 



micrautha 242 



ovata 242 



strigulosa 242 



Oleace^ 131 



Onagkace^ 239 



Onion 286 



Ophioglosse^ 335 



Orache 198 



Orchard grass. 3' -6 



Orchidace^ 280 



Oreodaphne 38, 231 



Californica 231 



Orobanchace^ 142 



Osmorrhiza 29, 179 



bracbvpoda 179 



nuda 179 



Oxalides: 206 



Oxalis 43, 56, 206 



corniculata 206 



Oregaua 206 



Paeoni^ 49, 232 



Browuii 233 



Painted-Cup 147 



Panax 27, 184 



horridum 184 



Pauicum 10, 29o 



Papaverace^ 228 



Papilioxace^ 253 



Parietales 217 



Parontchi;e 194 



Pearly-Evf rlasting 90 



P( arlwort 193 



Pectocarya 19, 157 



pericillata 158 



Pedicularis 51, 143 



densiflora 143 



Pelloea 332 



PentaciBna.,..14, 24, 27, 194 



ramosissima . . 195 



Pentachffita 61, 63, 82 



alsinoides 83 



bellidiflora 82 



exilis 83 



Pentandria 18 



DIGYNIA 25 



MONOGYNIA 18 



PENTAGYNIA 31 



POLYGYNIA 31 



TRIGYXIA 31 



Pentgtemon 21, 53, 151 



azureus 151 



centrantbifolius 151 



Peony 232 



Peppergrass 222 



Prigyx^ 238 



Personales 1J2 



Petasiies 110 



Peucedanum 29, 177 



caruifolium 177 



dasycarpum 177 



leiocarpnm 177 



triteruatum 177 



