28 
Panicum clandestinum, Linn. July, Aug. 2. 2 ft. 
P. latifolium, Linn. June, July. 2¢. 1 ft. Woods. 
P. nervosum, Muhl. July. 2(. 3 ft. Moist shady woods. 
P. dichotomum, Linn. Aug. 2{. 8—12 in. Dry open woods. 
P. nitidum, Lamarck. June, July, 2... 6—18 in. Common in dry 
situations. 
P. agrostoides, Muhl. Aug. 2(. 2—3 ft. River shore between 
Troy and Albany. Wet. 
P. capillare, Linn. Aug. 2{. 12—18 in. Common in dry situations. 
Papaver rheas, Linn. 7. June. 3%. Naturalized. 
Parnassia Americana, Mubl. Flowering Plantain. y-w. August, 
Sept. Swamps. 
Pastinaca sativa, Linn. Parsnip. y. July, Aug. ¢. 2—4 ft. Fields 
and roadsides. Introduced. 
PepicuLaris Canadensis, Linn. y. or p. May. 2. 6—12 in. Woods. 
P. pallida, Pursh. light y. Sept. 2£. 1—2 ft. Damp grounds in 
fields. 
Pentuorum sedoides, Linn. July, Aug. 2(. 12—18 in. Damp pla- 
ces in meadows, roadsides, and ravines. 
PeNnTSTEMON pubescens, Aiton. pale p. June. 2f. 18in. Dry fields. 
Puievum pratense, Linn. 'Timothy-grass. Herds-grass. June—Aug. 
Mey Ba ft. « Fields. 
Puryma /eptostachya, Linn. Lopseed. p-y. July. 2 ft. Shady woods. 
PuysaLis obscura, Mich. pale y. Aug. 2%. 1 ft. 
Puyrotacca decandra, Linn. Poke-weed. w. July—Sept. 2f. 3— 
6 ft. Roadsides and borders of fields. Berries purple. The 
roots and berries are emetic, cathartic, and somewhat narcotic. 
Pinus, Canadensis, Linn. Hemlock tree. May. 5. Large tree. 
Rocky woods. ; 
P. nigra, Aiton. Black Spruce. May. 6. Middle sized tree. 
Swamps. 
P. rigida, Linn. Pitch Pine. May. 5. Large tree. 
P. strobus, Linn. White Pine. Weymouth Pine. May. 6. A very 
large tree. 
P. pendula, Aiton. Hackmatack. Tamarack. May. b. Middle 
sized tree. ‘The turpentines contained in the Pines are stimulant, 
diuretic, diaphoretic, expectorant, laxative; and, externally ap- 
plied, rubefacient. 
PipraTHerum nigrum, Torrey. Aug. 2(. 2—3 ft. Rocky hills and 
banks of ravines. 
PLANTAGO major, Linn. Plantain. Jane—Aug. 2(. 6—12in, Fields 
and roadsides. 
