Proceedings of the Ohio State Academy of Science 153 



Fruit large, various. Introduced from Europe and escaped in 

 many places. The seeds are poisonous. Me. to N. Y., N. J., 

 Ohio, and Ga. 



39, Cydonia Tourn. Quince. 



Shrubs or low, small trees with fleshy pomes. 



*. Cydonia cydonia (L.) Karst. Quince. A low tree with 

 crooked stem and rambling branches. Cultivated for the large 

 sour fleshy fruit. 



40. Amelanchier Medic. Juneberry. 



Shrubs or small trees with simple mostly 2-ranked leaves and 

 small berry-like pomes. 



1. Leaves acute or .acuminate at the apex; top of the ovulary glabrous 

 or nearly so. 2. 



1. Leaves rounded, obtuse or subacute at the apex; top of the ovulary 



woolly; petals ^--f in. long. 'A. rotimdifolia. 



2. Leaves glabrous when mature, but pubescent or woolly when young, 



ovate to ovate-lanceolate; base cordate or rounded. A. canadensis. 

 2. Leaves densely white-woolly beneath, at least when young, oblong to 

 obovate, rarely sub-cordate -at the base. A. botryapium. 



1. Amelanchier canadensis (L.) Med. Common June- 

 berry. A medium-sized tree with a sinall, red or purple, sweet 

 and edible, berry-like pome. In dry soil. Newf. to Ont., Fla., 

 La., and Ohio. 



2. Amelanchier botryapium (L. f.) DC. Swamp June- 

 berry. A shrub or small tree growing in swamps and moist soil. 

 N. B. to ]\Ian., Fla., La., and Ohio. 



3. Amelanchier rotundifolia (Mx.) Roem. Roundleaf 

 Juneberry. A tall shrub or small tree growing in woods and 

 thickets. N. B. to Minn., N. Y., Ohio and Mich. 



41. Crataegus L. Haw^thorn. 



Small trees or shrubs usually with typical, sometimes 

 branched thorns. Pome drupe-like with bony ripe carpels. Only 

 'he common tree-forms are here included. 



L Corymbs many flowered. 2. 



1 . Corymbs 1-7 flowered ; calyx-lobes deeply incised ; leaves obovate 

 or spatulate, obtuse.. C. uniHora. 



