INDEX. 



901 



Page. 

 Poplar Continued. 



silver-leaf 465 



white 833 



yellow... - 84,506 



Poppy family 520 



prickly. 520 



Populus - 43 



alba .- 833 



angulata 465 



carolinensis 465 



catalogue 464 



deltoides - 185 



grandidentata 185 



heterophylla - 185 



monilifera - 185,465 



Porella 285 



catalogue 288 



involutct 288 



Poria, catalogue 206 



Poronia, catalogue 182 



Porothelium, catalogue _ 213 



Porotrichurn, catalogue /.. 308 



Porteranthus, catalogue 539 



stipulaceus 75. 93 



trifoliatus 75 



Portulaca, catalogue 495 



oleracea 55,152 



Portulacaceae 495 



Post-oak prairies 98 



Potamogeton, catalogue 327 



crispus 127 



diversifolius 126 



fluitans 327 



hybridus 127 



hybridus . . 328 



lonchites 127 



nutans 327 



perfoliatus 127,329 



pinnatum 639 



pusillus 127 



spp 49 



rufescens 327 



tenuissimus 328 



Potato 31 



wild 680 



Potatoes, Irish.. 69,80,828 



sweet 80,110,134,822,828 



Potentilla, catalogue 542 



durandii 541 



simplex 542 



Pottiaceae --- 299,809 



Poverty grass.... 124,364 



Prairie belt, root and forage crops 823 



vegetation and soil 823 



region 



Prairies 48 



Prenanthes 755 



altissitna 756 



crepidinea 755 



crepidinea 755 



deltoidea 756 



serpentaria 755 



barbata 755 



Prickly ash, southern 102.587 



pear - 133,630 



poppy, Mexican 520 



Pride of China 3s 



Page. 



Primrose v .... 823 



evening... 634,637,638 



family 661 



Primulaceae 661 



Prinos ambiguus 603 



coriaceus 604 



glaber 604 



montanus 603 



verticillatus 604 



Privet 57 



Carolina 603 



evergreen 835 



Japan 835 



Japanese 136 



mountain 603 



southern 57,102 



swamp. 667 



Procumbent Polypremum G69 



Prosartes 441 



lanuginosa 441 



Proserpinaca, catalogue .-,. 039 



pahistris 639 



sp 193 



Prosthemium, catalogue 257 



Protococcales 146 



Prunella, catalogue 705 



vulgaris 257 



Prunus 201,211 



ainericana ... 57, 61, 83, 85, 165, 172, 189, 551, 832 



angustif olia .154, 172, 189, 208, 251, 831 



avium.. 240 



caroliniana 171,834 



catalogue 551 



cerasus - 165 



chicasa 551 



hiemalis 551 



injucunda 62 



maritima 551 



serotina 61,84,154,163, 



172, 189, 209, 250, 251, 254, 260, 261, 552 



ntontana 552 



neomontana 62 



sp 251,257 



triflora 154,172,235,832 



umbellata... 99,122,172 



Psammophytes.: 129 



Psammophytes 129 



Psathyrella, catalogue 222 



Pseudauliscus, catalogue 143 



| Pseudohelotium sacchariferum 158 



Psilopezia, catalogue 155 



| Psoralea 88 



canescens ... 115 



catalogue - 562 



dalea - 564 



eglandulosa 563 



melilotoides 563 



pedunculata 67 



simplex 116 



Psylocybe, catalogue 222 



Ptelea, catalogue 587 



monophyUa . 600 



sp 194 



trifoliata 99,108,194 



Pteridophyta 312 



Pteridophytes - 48,49 



Pteris alabamensis 312 



aquilina 123 



