148 FLORA OF MOUNT DESERT. 



P. grandidentata, MX. LARGE-TOOTHED ASPEN. 



Frequent in woods. 

 P. balsamifera, L. BALM OF GILEAD. 



Frequent about dwellings, etc. Apparently introduced, and 

 naturalized by seedlings. Oak Hill, etc. (Rand) ; Southwest 

 Harbor (Elizabeth G. Britton, Rand); Seal Harbor (Red- 

 field); and elsewhere. At Somesville, however, and east of 

 Town Hill, remote from dwellings, it appears to be indigenous. 



P. DEL AT AT A, L. LOMBARD Y POPLAR. 



Occasionally by roadsides, etc., and sometimes spontaneous, 

 Somesville; Southwest Harbor (Rand); Oak Hill (Redfield). 

 Adventive from Europe. 



EMPETBACE^E. CROWBERRY FAMILY. 



EMPETRUM, L. CROWBERRY. 

 E. nigrum, L. BLACK CROWBERRY. 



Common on cliffs along the coast and on the islands. Often 

 in heaths and bogs ; The Heath, Great Cranberry Isle ; Sunken 

 Heath; Great Heath (Rand); more rarely on mountains and 

 hills ; Barr Hill ; Green Mt. (Redfield) ; Sargent Mt. (Rand). 

 Also Duck Islands (Redfield). 



COREMA, Don. BROOM CROWBERRY. 

 C. Conradii, Torr. 



Dry rocky places; rare and local. Asticou; Little Harbor 

 (Lane & Rand) ; Barr Hill, in a number of localities ; hill 

 between Long Pond and Little Harbor Brook (Redfield); 

 Beech Mt. ; Dog Mt. (Rand) ; Beech Hill (Annie S. Downs, 

 Sara E. Boggs) ; Ship Harbor (Annie S. Downs) ; - in great 

 abundance in pine barrens, east of Ship Harbor; west of Hio 

 (Rand).* 



* Corema also grows in abundance with Pinus Banksiana, near Prospect 

 Harbor, Gouldsborough (Redfield). 



