XII 



IXDEX. 



Oenothera tubicula filifolia 173,206 



wrightii 170, 206 



Oldenlandia greenei. 105,215 



Onosrnodium thurberi 170, 211 



Opuntia angustata 158, 204 



arborescens 174,204 



brachyarthra 158,204 



clavata 151 ,204 



eymochila montana 107,204 



davisii 172, 204 



dlllei 100, 204, 238 



emoryi 200 



engclmanni cyclodes 152, 204 . 205 



filipendula 155, 205 



hystricina 174, 205 



mierocarpa 166, 205 



missouriensis triehophora 107,205 



phaeacantha 109, 205 



maj or 205 



sphaeroearpa ] 07, 205 



stanlyi 1 57, 205 



stenochila 174, 206 



trichophora 205 



whipplei 174, 206 



Oreocarya hispidissima 210 



lutescens 152, 21 1 



Orobanche multiflora 106, 215 



xanthochroa 104, 2 15 . 240 



Oxybaphus coecineus 170, 1S3 



Panicum lachnanthum 153, 1 7 J 



Parke's Exploring Expedition, route of 151 



Parosela filiformis 194 



polygonoides scariosa 194 



scoparia 194 



urceolata 194,227 



wlslizeni sessilis 195 



Parryella filifolia 151, 106 



Pectis taxifolia 153, 224 



Pedicularis angustisslma 102, 213 



cenlranthera 152, 213 



fluvial ilis 109, 213 



mogolloniea 102, 213 



Pellaea wrightiana 170, 175 



Pentstemon acuminatus 214 



ambiguus 214 



angustifolius 213 



caudatus 152, 213 



dasyphyllus 154, 214 



fendleri 100, 214 



lanceolatus 214 



linarioides 164, 214 



metcalfei 214 



nitidus 214 



pauciilorus 157, 214 



puberulus 214 



thurberi 1,53,214 



virgatus 170, 214 



whippleanus 107, 214 



Perieome caudata 170, 224 



Peril vie coronopifolia 17 ! . 22 I 



Peronosporales 245 



Petalostemon gracile oligophyUum 100, 196 



oligophyllum 196 



Phaca fendleri 109, 106 



gracilenta 109, 196 



Tage. 



Phaca macrocarpa 169 , 196 



picta 100, 196 



Phaeelia caerulea 174. 210 



intermedia loo, 210 



neomexicana 171 , 210 



popei loo, 210 



rupestris 210 



similis 103, 210 



Phanerophlebia 244 



Phaseolus acutifolitis tenuifolius 171, 196 



angustissimus 155, 196 



macropoides '. 171, 196 



parvulus 165, 196 



Philadelphia argyrocalyx 155, 173, 190 



elliptieus 190 



mearnsii 190. 234 



microphyllus 109, 190 



Phlox 240 



mesoleuca 153, 209 



nana 109, 209 



glabella 209 



speeiosa stansburyi 104,209 



stansburyi 209 



Phoradendron junipcrinuin 109, 180 



l'hysalis 241 



fendleri 109, 212, 235 



neomexicana 109, 212 



Picacho Mountain 165 



Pifion pine 240 



Pinus brachyptera 175 



edulis 176 . 240 



engelmanni 1 76 



scopulorum 175 



Pleopogou setosum 109, 177 



Poa 245 



arida 171, 177 



bigelovii 174, 177 



fendleriana 177 



tracyi 165,177 



Poinsettia cuphosperma 199 



Polemonium filicinum 105. 209 



flavum 105, 209 



pterospermum 154 . 209 



Polygonum longisty lum 109, 181 . 242 



Pope's Expedition, route of 150 



Portulaca sufTrutescens 171,184,234 



Potentilla arachnoidea 109, 191 



bicrenata 191 . 241 



crinita 109. 191 



diffusa 109, 191 



ovalis 109. 191 



propinqua 109, 191, 192 



sierraeblancae 173, 192, 240 



subviscosa 102, 192 



thurberi 171 , 192 



Prickly pear 238 



Primula angust ifolia helenae 100, 207 



ellisiae 107, 207 



rusbyi 162,207 



Psathyrotes annua 219 



Pseudocymopterus montanus 207 



montanus multifldus 100, 207 . 242 



Ptelea 237 



formosa 173, 198 



neomexicana 153,198 



