38 FLORA OF THE UPPER SUSQUEHANNA. 



P. malus L. Apple. In woodlands, thickets and fence rows. 

 Well naturalized. Fruit of inferior size, hard and gnarly, but 

 not unpleasant to the taste when mellowed. 



ARONIA Pkks. 



A. nigra (Willd.) Britton. Ciiokeberry. Choke Hl'Ckleberrv. 

 \'erv common in swamps and bogs, often forming thickets of 

 considerable extent. A shrub, six to eight feet or more high. 

 Flowers small, numerous, in cymes, white or pinkish; fruit 

 black. [Py7-iisarbutifolia,\^ax. melanocarpa Hook.) 



SORBUS L. 



S. Americana Marsh. American Molntain Ash. Found wild 

 in Susquehanna county; occasionally cultivated elsewhere. Dis- 

 tinguished from the ^Mountain Ash of Europe, which is also cul- 

 tivated, by its smaller habit, greener leaflets, less downy leaves 

 and buds, and smaller berries. 



CRAT^GUS L. 



C. coccinea L. Scarlet-fruited Thorn. White Thorn. Crim- 

 son Haw. Common in woods, thickets and pastures. Fruit 

 bright red. The variety inacracantha is reported from the 

 Chemung valley by Dr. Lucy. 



C. tomentosa L. Black Thorn. Rare. Near Elmira and Corn- 

 ing, Lucy. Ross Park, Millspaiigh. 



C. punctata Jacq. DorrED-FRnTED Thorn. Xot uncommon in 

 fields and thickets. Fruit rather large, red or yellow, occasion- 

 ally dotted with white. 



C. Crus-galli L. Cock-splr Thorn. Rather common in woods 

 and thickets. Not reported west of Tioga county. Thorns four 

 inches or more in length. April. May. 



AMELAXCHIER Medic 

 A. Canadensis (L.) Medic. Shad-iush. Jineherrv. Service- 

 liEKK , . Common in woods. A tree, sometimes of considerable 

 size, r^lowers white, in long racemes, appearing with or before 

 the leaves; fruit red or purplish, sweet, edible. The blooming 

 of the tree is popularly supposed to herald the approach of .shad 

 in the. rivers. Apr. May. 



