484 



INDEX. 



Polypodium— Continued. Page. 



lowei h 



maerodon 10 > 11 



mexkanum 17 



minusculum " 



miser 30 



mitchellse - 43 



muriaitum 28, 34 



myriolepis " 



nesiolicum " 



pilosissimum 12 



plcbeium 11 



palmense - ™ 



plectolepis 9 



polypodioides 11, 334 



productum 11,12 



reptans 36 



rhizophyllum 36 



rigens " 



senile 4J 



skinneri - 9 



suspensum " 



triangulum *° 



trichomanoides * 2 



trifurcatum - " 



Polystichum 24,3!) 



aculeatum 21,34 



adiantiforme 30 



aquifolium - - 3.5 



capense 30 



christianae 30 



coriaceum 30 



cyphochlamys 2S, 29 



decoratum 30,31,36 



discolor 30 



dissimulans 29,31,32,30 



echinatum 28, 37 



falcatum 28, 29 



guadcloupense 32 



harrisii 32, 33 



heterolepis 20,29,32,33 



ilieifolium 33,33 



krugii 36,37 



longipes 34 



mucroliatum 28, 29 



muricatnm 34 



plaschnickianum 35 



platyphyllum 35 



polystictaiformis 35 



rbizophorum 26, 31, 36 



secondary characters - 26 



tip. 



21 



struthionis 28,29,37 



tenue 35 



triangulum 25, 26, 28, 29, 32, 34, 36, 37 



tridens 37 



underwoodii 38 



viviparum 26, 29, 31, 32 



Pontcdcriacordata - 328 



Pope's Expedition, route or 150 



Populus vislizeni 292 



Porcupine grass 52 



Portulaca paniculala 288 



patens 288 



suffrutescens 171, 184,234 



Potentilla arachnoidea 169, 191 



bicrenata , 191,241 



crinita 169,191 



Potentilla— Continued. 'Pap.e. 



diffusa M»i 1S1 



ovalis 169,191 



propinqua 169,191,192 



sierraeblancae - 173,192,246 



snbviscosa 162,192 



thurberi 171,192 



Prairie region, passing of native flora 361 



Prickly pear 238 



Primula angustifoli.i lielonae 160,207 



elli-dae. 167, 207 



rusbyi - 162,207 



Tsathyrotes annua 219 



I'seudocymopterus montanus 207 



montanus multifldus 160, 207, 242 



Pseudolmedia 431,432 



bucidaefolia 432 



ferruginea 433 



havanensis - 432, 433 



lac vigal a 433 



macrophylla 433 



oxyphyllaria - 432, 433 



spuria 432 



Ptelea 237 



formosa 173,198 



neomcxicana 1X3, 198 



parvnla - 173,198 



subvestita 156, 171, 198 



undulate 153,138 



villosula 104, 198 



Pterideae 12 



Tteris deflexa 13 



mexicana 13 



orizabae 13 



pulchra 13 



purdoniana. 41, 42 



Ptllorla neomexicana 227 



thurberi - 227 



Puccinellia 4S,77 



alaskana 78 



angustata 77, 78 



distans 79 



festueaeformis 79 



marilima 78, 79 



minor 77 



phryganodes 78 



vahliana 78 



Pnrpus, C. A., collections of 1907 and 1908. . . 45 

 Py rrocoma amplectens 224, 237 



Quamoclidion STBj 410 



angulatum - 410 



froebclii 411 



laevc... 412 



multiflorum 411 



nydagineum - 410,411 



triflorum 410 



Quclitos - 12 ° 



Quelitl 12 ° 



Quercus - 232 



douglassii novomexicana 179 



emorvi 166,179 



fendleri 180,239 



gambelii 160, 180 



nigra - - 834 



novomexicana 179 



oblongifolia 180 



