98 FLORA OF MOUNT DESERT. 



pink, cinnamon-scented, mostly double, not showy. Graj', 

 Field, For. & Gard. Bot., 127. Roadsides, escaped from 

 gardens. Hulls Cove; Oak Hill (Rand). Introduced from 

 Europe. 



PYRUS, L. Apple. Pear. 

 P. Malus, L. Apple. 



Infrequently spontaneous by waysides, in old fields, etc. 

 Northeast Harbor ; Somesville ; Canada Valley ; Sutton Island 

 (Rand). 



P. arbutifolia (L.), L. f., var. melanocarpa (Mx.), Hook. 

 Black Chokeberry. 



Common in both wet and dry ground. Very variable in height 

 from 4°-5° in swamps to 6'-l° on mountains. A double- 

 flowered form, Breakneck Ponds (Rand). 



Forma pubescens. 



Pedicels and petioles very tomentose. Not uncommon. 

 Somesville (R. & R., M. L. Fernald) ; — Bar Harbor (Mary 

 Minot). 



P. Americana (Marsh.), DC. Mountain Ash. 



Rocky woods; common. Leaves commonly less taper-pointed, 

 and a darker green in color than farther south. Somewhat ap- 

 proaching the next in general appearance. 



P. sambucifolia, Cham. & Schlecht. Northern Mountain Ash. 

 Rare. Beech Cliff (E. Faxon) ; — Southwest Harbor (M. L. 

 Fernald; — Beech Hill (Rand). 



CRAT-ffiGUS, L. Hawthorn. Thorn. 

 C. coccinea, L. Scarlet-fruited Thorn. 



Infrequent. Little Harbor Brook Notch (Rand) ; — Denning 

 Brook (M. L. Fernald). 



Var. macracantha (Lodd.), Dudley. 



Frequent by waysides, rocky banks, beaches, etc. The com- 

 mon Thorn of the Island. 



