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. (Eand) ; — Southwest 

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

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

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



P. DILATATA, L. LOMBARDY POPLAR. 



Occasionally by roadsides, etc., and sometimes spontaneous, 

 Somesville; Southwest Harbor (Rand); — Oak Hill (Redfieid). 

 Adventive from Europe. 



EMPE TRACED. Crowbekry 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. (Redfieid) ; — Sargent Mt. (Rand). 

 Also Duck Islands (Redfieid). 



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 (Redfieid) ; — 

 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 (Redfieid). 



