lapathifolium, 17 81 94 98 108 
(P. lapathifolium incarnatum), 65 102 
longistylum, 98 
Muhlenbergii, 7 16 65 82 84 91 103 108 109 110 
pennsylvanicum, 14 17 36 72 98 110 
Persicaria, 65 84 
ramosissimum, 17 22 98 
prolificum, 84 
sagittatum, 1 48 57 61 
scandens, (P. dumetorum scandens), 1417 41 45 65 82 
91 94 110 
tenue, 33 57 58 61 
virginianum, 5 32 39 45 58 65 108 109 
Polymnia canadensis, 33 58 65 79 105 108 110 
(P. canadensis radiata), 50 109 
uvedalia, 58 65 98 109 
Polytaneia Nuttallii, 17 33 39 42 58 109 
Populus deltoides, (7. monilifera), 3 31 32 37 45 69 91 94 
98 109 110 
Portulaca oleraceae, (commozn. ) 
pilosa, 32 
Potentilla canadensis, 3 1417 29 41 48 58 62 65 98 
monspeliensis norvegica, (P. zorvegica), 14 17 32 65 84 
norvegica hirsuta. ; 
paradoxa, (P. supina), 1 3 14 65 72 79 81 84 
tivalis Millegrana, 82 84 98 109 
pentandra, 84 
Prenanthes alba, 33 35 65 98 
altissima, 33 45 48 58 
aspera, 17 — 
crepidinea, 10 17 45 58 65 98 
racemosa, 17 58 
Proserpinaca palustris, 57 58 72 109 
Prunella vulgaris, (Brunella vulgaris), 117 25 29 45 50 67 
74 102 | 
Prunus americana, 14 17 44 45 46 
Mineri, 6 32 
mollis, 22 
angustifolia. 
hortulana, 58 
peunsylvanica. 
Persica, 1 32 
serotina, 7 111417 41 45 62 65 99 104 
virginiana. | 
Psedera quinquefolia, (Ampelopsis quinquefolia), 14 17 33 
41 45 54 62 82 108 109 
Psoralea esculenta, 45 58 61 
Onobrychis, 17 44 57 58 72 
56 
