PLANTS AND FERNS. 79 



P. vexillatus, Linn. p. Ju, J^ Twining. Sandy meadows. Stro- 



THOSTYLES. 



Thleum prate7isc, Linn. TiuioUiy grass. Herd's grass. J. 2/ 2 3 



ft. Fields. 

 Phlox panicuJata, Linn. r. Ju. % 2 — 4 ft. Meadows. 

 v. maculata^lAim. r. w. Ju. 21 IS — 24 i. Meadows. 

 P. /li/osa, Linn. p. to. J. 2/ 12 — 18 i. Meadows. 

 P. divaricata, Linn. p. h. M. 1^ 1 — 2 ft. Meadows. 

 P. repfans, Mx. ;;. Z*. J. Ji 6 — 18 i. Stem prostrate. Rocky banks 



of Potomac. 

 P. revoluta, (mihi) 70-p. J. 2/ ''- — 18 i. Damp woods. (3.) 

 Phryma leptoslachya, Linn. Lopseed. lo-p. Ju. 2/ 1 — 2 ft. Sliady 



woods. 

 Phvsalis v?scosfl, Linn. Ground Clierry. y. Ju. 11? Q 1 — 3 ft. 



Road sides. 

 P. ohscura, Mx. y. spotted. Ju. 1 — 2 ft. Roadsides. 

 P. jsziipscens, Linn. y. Ju. (v) i — 2 ft. Roadsides. 

 F. philadelphica^Lk. y. Ju. @ 1 — 2 ft. Roadsides. Our common 

 Pliysalis, in its numerous varieties, certainly presents all the 

 characteristics of the four preceding species, and it is questionable 

 with me whether they ought to be retained as distinct species. (4.) 

 Phytolacea decandra, Linn. Poke-weed. w. Ju. 2/ 3 — 6 ft. Road 



sides. 

 PxNUs canadensis, Linn. Hemlock-free. M. li 40 — 80 ft. Woods. 

 P. nigra, Ait. Black Spruce. M. k 30 — 60 ft. Swamps. 

 P. resinosa, Ait. Yellow Pine. M. I2 40 — 80 ft. Sandy woods. 

 P. rigida, Mill. Pitch Pine. M. Iz 40— GO ft. Sandy woods. 

 P. s/roZ»MS, Linn. White Pine. M. ^2 ^0 — 100 ft. Sandy woods. 

 P. pcndula, Ait. Black Larch. Tamarack. M. I2 30 — 40 ft. 



Allegany glades. 

 PiPTATHERUM nigrum, Tor. An. 2/ 2 — 3 ft. Rocky woods. 

 Plantago major, Linn. Plantain, J. 2/ 1 — 2 ft. Road sides. 

 P. lanceolata, Linn. RL 2/ 6 — 24 i. Road sides. 

 P. virginica, Linn, J. 3 — 9 i. Sandy fields. 

 Platanus occidentalis, Linn. Button-wood, Plane-tree Sycamore. 



M. \2 50 — 100 ft. Banks of streams. 

 PoA annua, Linn. Ap. 6 — 8 i. Fields. 

 P. pratensis, Linn. J. 7/ 2 — 3 ft. Meadows. 

 P. co?npressa, Linn. Blue-grass. J. % 12 — 18 i. Roadsides. 

 P. triviaUs, Linn, Ju. 2/ 2—3 ft. Fields. 

 P. nervata, Willd. J, X 3 — 4 ft. Wet meadows. 

 P. canadensis, P. de B. Ju. 2/ 2—4 ft. Meadows. 



