( 355 ) 



OCTANDRIA 36 



DI-TRIGYNIA 38 



MONOGYNIA 36 



TETRAGYNIA 38 



(Enanthe 28, 178 



California 178 



(Enothera.. 37, 241 



biennis 241 



Californica 242 



Cheiraotkifolia 242 



dentata 242 



micrantha 242 



ovata 242 



strigulosa . . 242 



OLEACE^: 131 



ONAGEACE^S 239 



Onion 286 



OPHIOGLOSSE^: 335 



Orache 198 



Orchard grass. 306 



ORCHIDACE^B 280 



Oreodaphne 38, 231 



Californica 231 



OROBANCHACEJB 142 



Osmorrhiza 29, 179 



brachypoda 179 



nuda. 179 



OXALIDEJE ...206 



Oxalis 43, 56, 206 



oorniculata 206 



Oregana 206 



Paeonia 49, 232 



Brownii 233 



Painted-Cup 147 



Panax 27, 184 



horridum. . , . . 184 



Pauicuin 10, 290 



PAPAVERACE.E 228 



PAPILIONACEJE 253 



PARIETALES 217 



PARONYCHIJS 194 



Pearly-Everlasting 90 



Pearlwort 193 



Pectocarya 19, 157 



pevicillata 158 



Pedicularis 51, 143 



densiflora 143 



Pellcea 332 



Pentacna....l4, 24, 27, 194 



ramosissima 195 



Pentachrcta 61,63, 82 



alsinoides 83 



bellidiflora 82 



exilis 83 



PENTANDRIA 18 



DIGYNIA 25 



MONOGYNIA . 18 



PENTAGYNIA 31 



POLYGYNIA 31 



TRIGYNIA 31 



Pentstemon 21, 53, 151 



azureus 151 



centranthif olius 151 



Peony 232 



Peppergrass 222 



PRIGYN^J 238 



PERSONALES 142 



Petasites 110 



Peucedanum 29, 177 



caruifolium 177 



dasycarpum 177 



leiocarpum 177 



triternatum 177 



