3o6 



[448 



References to the Flora are in brackets [ ] 



punctata [130 



Persimmon 54, [191 



Petalostemon [160 



candidus [ i6o 



violaceus [160 



Petunia. .. ...[206 



axillaris [206 



violacea [206 



Petunia [206 



violet [206 



white [206 



Pliacelia [ 197 



Purshii 35, [197 



Phianerogams .. 57. [.59 



Pharbitis [195 



hederacea ['95 



hispida 7O1 ['95 



Nil 70, [195 



purpurea [^95 



Piiaseolus [165 



helvolus 63, 64, [165 



pauciiiorus [166 



umBellatus 64, [165 



Phegopteris hexagonoptera . . [244 



Philotria [84 



minor [84 



Piileum . . [91 



pratense [91 



Piilox 39i [196 



amoena [253 



divaricata 



35. 42, 46, 47, 49. [196 



pilosa 42, 49, [196 



procumbens ... [253 



reptans [253 



Phlox [196 



crawling [253 



downy [196 



hairy .- [253 



wild, common 196 



Phragmites communis 20 



Phryma [211" 



Leptostachya 36, 44, [211 



Phrymaceae [211 



Phyla [199 



laticeolaia ... [199 



Phyllanthus [168 



Caroliniensis [168 



Physalis [204 



heterophylla [204 



Lagascae [204 



lanceolata [204 



Missouriensis [104 



nyctaginea .... [205 



pruinosa [204 



pubescens [204 



Virginiana [204 



Pkysalodes Physalodes. . 



•[253] 



Physiography of the region. . 3 



Physocarpus ... . 57, [149], [150] 



ferrugineus [149] 



intermedins... -45, [149], [150] 



Michiganensis ['49] 



Missouriensis [149] 



opulifolius [150] 



ferruginea [149] 



Phytolacca [134] 



decandra. 14, 69, [134] 



Phytolaccaceae [134] 



PiCKERELWEED FAMILY. ... [ill] 



Pigweed [132] 



common [133] 



creeping [134] 



slender [133] 



thorny [133] 



Pigweed association 70, 71 



Pilea [i27] 



pumila 36, 57, [127] 



Pimpernel [ 1S6] 



false [208] 



water [ 190] 



yellow ['86] 



Pimpinella [186] 



integerrima . [ '86] 



PiNACEAE [82] 



Pine . 3 



Pine family [82] 



Pink family 



Pinweed 



large. 



thin 



Pinweed association 



Pirolaceae 



Pirus, see Pyrus 



Planetree 



Planetree family 



Plantaginaceae 



Plantasinales 



Plantago 67, 



aristata 64, 



cordata 22, 



heterophylla 



lanceolata 



major 71, 



occidentalis 



Patagonica 



aristata . . 



spimdosa 



Rugelii 71, 



spinulosa 64, 



Virginica. 55, 



longifolia 



Plantain 67, 



bracted 



135] 

 178] 

 178] 

 178] 

 63 

 189] 



148] 

 148] 

 212] 

 2ia] 

 212] 

 212] 



212] 



253] 

 212] 

 212] 

 212] 

 253] 

 212] 

 212] 

 212] 

 212] 

 212] 

 212] 

 212] 

 212] 



