59 



GENERAL INDEX OF LATIN GENERA AND SPECIES. 



Vol. III. 



angustifolius 34 



POLYPODIACEAE I 10 



Polypodium i 35 



bulbiferum 14, 5 



calcareum 24 



cristatum 19 



dilatatum 21 



Dryoptcris 23 



Filix-foemina 30 



Filix-mas 17, 21 



fontanum 29 



fragile 1 5 



fragrans 19 

 hexagonopterum 23 



incanum 36 



intermedium 22 



Lonchilis 16 



marginale 20 



montanum 15 



noveboracense 18 



oblusum 14 



Phegopteris 23 



polypodioides 36 



Robertianum 24 



spinulosum 21 



vulgare 35, 6 



Polypogon 1 201 



monspeliensis 201 



Polypremum 2 731 



procumbens 731 



Polypteris 3 507 



callosa 507 



Hookeriana 507 



Polystichum 1 16 



acrostichoides 16 



" Schweinitzii 16 



Braunii 17 



Lonchitis 16 



scopulinum 17 



Polytaenia 2 632 



Nuttallii 633 



Pomaceae 2 286 



Pomaria 



glaiidulosa 2 338 



PONTEDERIACEAE I 462 



Pontederia 462 



cordata 463 



" angustifolia 463 



lancifolia 463 



litnosa 464 



Populus I 587 



acuminata 589 



alba 587 



anguiata 590 



angustifolia 588 



balsamifera 588 



candicans 588 



carolinensis 590 



eoloradensis 589 



deltoides 590 



" occidentalis 591 



dilatata 590 



grandidentata 589 



heterophylla 589 



italica 590 



monilifera 590 



nigra 590 



Populus 



occidentalis 1 591 



Sargentii 591 



tremuloides 590 



Porteranthus 2 248 

 (Gillenia 1 



stipulatus 248 



trifoliatus 248 



PORTULACACEAE 2 35 



Portulaca 2 39 



grandiflora 41 



neglecta 40 



oleracea 39, 40 



pilosa 40 



retusa 40 



triangularis 35 



Portuna 2 689 



fioribunda 690 



Potamogeton 1 74 



alpinus 77 



americanus 77 



amp'ifolius 76 



" ovalifolius 76 



angustifolius 79 



" methyensis 79 



bipleuroides 80 



Claytonii 77 



compressus 81-3 



confervoides 81 



crispus 81 



dimorphus 86 



diversifolius 85 



epihydrus 77 



" vars. 85 



Faxoni 78 



filiformis I 86 



" Macounii 86 



" occidentalis 86 



flabellatus 87 



fluitans 77 



foliosus 82 



Friesii 83 



gemmiparus 85 



gramineus 78 



heterophyllus 78 



" vars. 78 



Hillii 82 



hybridus 85 



illinoensis 79 



interior 86 



interruptus 87 



lateralis 84 



lonchites 77 

 " noveboracensis 77 

 " connecticutensis 79 



lucens 79 



major 83 



marinus 86 



mysticus 80 



natans 74, 5 



niagarensis 82 

 noveboracensis 77 



Nuttallii 77 



Oakesianus 76 



ob'usifolius 82 



panormitanus 84 



pauciflorns 82 



pectinatus I 87 



perfoliatus 80 



" lanceolatus 80 



" Richardsonii 80 



piiuiatum 2 616 



praelongis I 80 



pulcher 76 



pusillus 84 



" vars. 83-6 



Robbinsii 87 



rufescens 77 



rutilus 83 

 spathulaefonnis 78 



Spirillus 86 



" curvifolius 86 



Potamogeton 



Primula 



mistassinica 2 708 



veris 708 



Prinos 



see Hex 2 486 



Prionopsis 3 377 

 (Aplopappus) 



ciliata 377 



Prosartcs 



lanuginosa 1 517 



trachycarpa 518 



Proserpinaca 2 613 



intermedia 613 



palustris 613 



pectinacea 613 



pectinata 613 



Prosopis 2 332 



glandulosa 333 



juliflora 333 



Prunella 3 115 

 (Brunella) 



laciniata 115 



vulgaris 115 



Priinus 2 322 



alleghaniensis 324 



amcricana 32^ 



angustifolia 324 



Avium ^27 



Besseyi 327 



cerasifera 325 



Cerasus 327 



Chicasa 324 



cuneata 326 

 domestica 2 322, 326 



gracilis 325 



Gravesii 325 



hortulana 324 



" Mineri 324 



insititia 326 



Mahaleb 328 



maritima 325 



mollis 323 



nana 329 



nigra 323 



Pennsylvania 328 



pumila 326 



serotina 329 



" Smallii 329 



sphaerocarpa 325 



virginiana 329 



Watsoni 324 



P seder a 2 510 



Pseudacacia 



odorata 2 375 



Pseudotaenidia 2 630 



montana 631 



Psilocarya 1 346 



nitens 347 

 rynchosporoides $47 



scirpoides 346-7 



Psilostrophe 3 504 

 (Riddellia) 



gnaphalodes 504 



Tagetinae 504 



villosa 504 



Psoralea 2 360 



argophylla 363 



aurea 368 



bituminosa 360 



collina 362 



cryptocarpa 363 



cuspidata 363 



Dalea 367 



digitata 362 



esculenta 363 



fioribunda 361 



hypogaea 364 



incana 362 



lanceolata 361 



linearifolia 362 



longifofia 386 



macrorhica 363 



