PLANTS OF NORTH ELBA 



93 



Aronia nigra ( Willd.) Britton 



Pyrus arbutifolia var. melanocarpa Hook. 



Black chokeberry 



Wet or dry soil. Common. June. It ascends to the top of Mt 

 Wright but was not fjund on Mt Mclntyre. It also inhabits cold 

 swamps. 



The red chokeberry, Aronia arbutifolia (L ) Ell., in some localities is 

 associated with this species, from which it differs in having red fruit and 

 leaves densely tomentose on the lower surface. 



Crataegus coccinea L. 



Scarlet thorn. Red haw 



Along roadsides and fences and in pastures. Very common. June. 

 Several forms or varieties occur. In one, the leaf blade is acute at the 

 base and the petiole is shorter than in the typical form. This form 

 approaches C. coccinea flabellata (Spach) Britton and is perhaps referable 

 to it. In another, the thorns are longer than usual and indicate an 

 approach to C. macracantha Lodd. 



Crataegus punctata Jacq. 



Large fruited thorn 



Rare. The only representatives seen are two trees standing in a 

 pasture a short distance southeast of Mountain View house. They are 

 united at the base and each has a trunk diameter of about 10 inches 

 just above the place of union. 



Amelanchier Canadensis (L.) Medic. 

 Shad rush. Service berry 

 Borders of woods and clearings. Common. May. 



Amelanchier rotundifolia (Mx.) Roem. 



Round leaved juneberry 



Roadsides and clearings. Occasional. Raybrook and near Brewster's 

 mill. 



Amelanchier spicata (Lam.) DC. 



LOW JUNEBERRY 



In rocky places and in dry sandy soil. Our smallest species. In a 

 pasture on the Placid club grounds there is a small form scarcely more 



