449 



307 



References to the Flora are in brackets [ ] 



common [212] 



dwarf [212] 



English [212] 



many-seeded [253] 



Patagonian ... [253] 



Robin's [229] 



Rugel's [212] 



spinulose [212] 



water [84], [212] 



western . [212] 



Plantain association 71 



Plantain FAMILY [212] 



Plant-societies of the region. 15 



Plant-society, the 



Platanaceae [: 



Platanus [: 



occidentalis.25, 34, 45, 48, [1 



Pleurisy root [ 



Plum [1 



common [1 



wild 52, [j 



wild goose [ 



Poa 



alsodes 



annua 



brevifolia [ 



Chapmaniana 



compressa 67, 



cristata 



debilis [ 



13 



48] 

 48] 

 48] 

 93] 

 56] 

 56] 

 56] 

 16] 

 96] 

 96] 

 _96] 

 245] 

 97] 

 97] 

 97] 

 45] 



nemoralis [245] 



pratensis. . 13, 38, 54, 66, 67, 



sylvestris.. 



Wolfii [96], [ 



Podophyllum . . . [ 



peltatum 42, [ 



Poinsettia [ 



dftitata [ 



heterophyila [ 



Poison ivy 15, [ 



Poke 



Pokeweed . . . . . . [ 



pokeweed family [ 



Polemoniaceae [ 



Polemonium 39, [ 



reptans 35. 42, 47. [ 



Polemonium family [ 



Polygala [ 



sanguinea 64, [ 



Senega [ 



verticillata 63, 64, [ 



viridesccns [ 



Polygalaceae [ 



polygonaceae .... 20, 27, [ 



POLYGONALES [ 



Polygonatum [ 



biflorum [ 



commutatum.. [115] 



giganteum [115] 



Polygonum 12, 13, 21 



23. 68, 70, 71, 72, [129], [195] 



acre. 32, [130] 



aviculare 72, [130] 



Convolvulus to, [131] 



cristatum... [132] 



dumetorum [132] 



scandens [131] 



emersum 20, 29, [ 130] 



erectum 72, [130] 



Hydropiper ... 32, [130] 



hydropiperoides 32, [130] 



incarnatum 32, [130] 



lapathifolium 32, [131] 



incarnatum [130] 



nodosum ... [131] 



littorale 71, 72, [129] 



Muhle7ibergii [130] 



nodosum 32. [131] 



orientale [131] 



Pennsylvanicum 32| [130] 



Persicaria 32) [130] 



ptmctatum ['30] 



sagittatum 39, [131] 



scandens... 33, 36, 43, 70, [131] 

 Virginianum .... .... 36, [131] 



Polygonums 12 



Polymnia ....[231] 



Canadensis 36, [231] 



Uvedalia. . [231] 



Polypodiaceae [79] 



Polypodium vulgare [244] 



Polypody [254] 



Polypody family [79] 



Polystichum 80 



acrostichoides.. . . 39, 42, 58, [80] 



Pond lily [248] 



fragrant [i37] 



yellow [248] 



Pondweed 18, [83] 



spiral [244] 



Pondweed association . . 18 



Pondweed family. [S3] 



Pontederiaceae [ill] 



Poplar [120] 



balsam [247] 



Poppy, prickly [249] 



Poppy FAMILY [142] 



Poppy mallow [176] 



Populus 



alba [120] 



balsamifera [247] 



del t aides [121] 



grandidentata [247] 



monilifera 25, 48, [l2i] 



