414 



P. 



Panax quinquefolia, Linn. Ginseng. 



trifolia, Linn. Dwarf ground-nut. 

 Panicum capillare, Linn. 



crus-galli, Linn. Barn-grass. 



dichotomum ? Linn. 



nervosum, Muhl. 



nitidum, LaMarck, and varieties. Panic-gra.ss. , 



pubescens, LaMarck. 



virgatum, Linn. 

 Parnassia Americana, Muhl. Flowering plantain. 

 Pastinaca sativa, Linn. Parsnep. 

 Pedicularis canadensis, Linn. Louse-wort. 



pallida, Pursb. 

 Penthorum sedoides, Linn. Virginian orpine. 

 Pentstemon pubescens, Alton. Beard-tongue. 

 Phalaris Americana, Elliott. Wild canary-grass. 

 Pbaseolus diversifolius, Persoon. 

 Phleum pratense, Linn. Timothy-grass. 

 Phlox aristata, Mx. 



Phragmites communis, Trinius. Common reed. 

 Phryma leptostachya, Linn. Lopseed. 

 Physalis obscura, Mx. Ground cherry. 

 Phytolacca decandra, Linn. Poke-berry. 

 Pinus pendula, Aiton. Tamarack. Hackmatack. 



resinosa, Aiton. Yellow pine. Norway pine. Red pine. 



strobus, Linn. White pine. 

 Piptathenim nigrum, Torrey. Clustered millet-grass. 

 Pisum maritimum, Linn. 

 Plantago cordata, LaMarck. 



lanceolata, Linn. Snake plantain, 

 major, Linn. Plantain. 

 Platanus occidentalis, Linn. Buttonwood. Sycamore. 

 Poa annua, Linn. 



aquatica v. Americana, Torrey. 



capillaris, Linn. 



compressa, Linn. Blue-grass. 



