CATALOGUE OF PLANTS. 



67 



P. Muhlenbergii, Watson. 



Bogs and wet places. B *, rare j valley, E. of Shadow 

 Point ; pool near Great Dome. 



P. Careyi, Olney. 



Swamps and shady wet places. B, rare ; near Balster Brook. 



P. Persicaria, L. Lady's Thumb. 



Nat. from Eu. in cult, ground and damp waste places. B* 

 and M, common. 



P. hydropiperoides, Michx. Mild Water Pepper. 



Shallow water and wet places. B *, pool, E. of Great Dome, 

 etc.: — Jf*, frequent in ditches and low grounds: — BB*, 

 border of pond. 



P. Hydropiper, L. Common Smartweed. Water Pepper. 

 Wet places. B*, frequent; pool, E. of Great Dome; by 

 Cragfoot Spring, etc. : — M* and 8, common. 



P. acre, FIBK. Water Smartweed. 



Wet places. B *, occasional ; pool in Pine Tree Brook ; Old 

 Furnace Brook ; by Cragfoot Spring, etc. : — M, by Winches- 

 ter Reservoirs : — BB*, occurs. 



P. Virginianum, L. 



Damp woods. 8, rare. 

 P. arifolium, L. Halberd-leaved Tear-thumb. 



Bogs in shade. B, occasional : — M* and 8, frequent. 



P. sagittatum, L. Arrow-leaved Tear-thumb. 



Low ground. B * and 8, common : — M, common in wooded 

 bogs and swamps. 



P- Convolvulus, L. Black Bindweed. 



Nat. from Eu. in cult, and waste grounds. B, occasional : 

 — M, borders of cult, ground. 



P. dumetorum, L., var. scandens, Gray. Climbing False 

 Buckwheat. 



Moist woods. B*, occasional; near Cragfoot Spring, etc. i 

 — M, occasional ; by S. Reservoir, etc. 



