142 FLORA OF MOUNT DESERT. 



limits of this list. The specimen attributed to Mt. Desert in 

 Bull. Torr. Bot. Club, xix. 362, is now pronounced to be P. 

 Rail (fide J. K. Small). 



P. lapathifolium, L. 



In cultivated grounds; rare. Southwest Harbor (Rand). 

 Doubtless introduced. 



P. Hartwrightii, Gray. 



Rare. Bog, Southwest Harbor (Rand). 

 P. Careyi, Olney. 



Rare. Wet ground on wood road, Town Hill (M. L. Fernald). 

 P. PERSICARTA, L. LADY'S THUMB. 



Common in waste and damp places. Variable. Naturalized 

 from Europe. 



P. Hydropiper, L. WATER PEPPER. 



Common in wet places. 

 P. sagittatum, L. ARROW-LEAVED TEAR-THUMB. 



Low grounds ; common. 

 P. CONVOLVULUS, L. BLACK BINDWEED. 



Waste grounds and beaches; common. Naturalized from 

 Europe. 



P. cilinode, MX. 



Woods and copses, especially in clearings; common. 



FAGOPYRUM, Gsertn. BUCKWHEAT. 

 F. ESCULENTUM, Moench. 



Waste ground, Southwest Harbor (Rand). Adventive from 

 Europe. 



EUPHORBIACE^E. SPURGE FAMILY. 



EUPHORBIA, L. SPURGE. 

 E. CYPARISSIAS, L. GRAVEYARD FLOWER. 



Escaped from cultivation to roadsides and waste places. Bar 

 Harbor; Southwest Harbor; High Head (Rand); Town Hill 

 (Greenleaf, Lane & Rand); Somes ville (R. & R.). Natural- 

 ized from Europe. 



