Trees of the Xokthern United States GO 



at the apex, doubly serrate. Fruit pyriform or ellipsoid, 

 orange-red or red. N. Y. and N. J. to Minn, and Mo. 



1'.]. Crataegus pertomentosa Aslic. Prairie flawlliorn. 

 A small tree with nearly horizontal branches forming a flat- 

 tened crown and with numerous curved thorns. Leaves 

 oblong to obovate finely doubly serrate or lobed. Fruit 

 globular or nearly so, cherry-red. villous when young. Rocky 

 soil. Towa. Mo., and Kan. 



14. Crataegus brainerdi Sarg. Brainerd's Hawtliorn. 

 A shrul) or small tree witli ascending branches. Leaves 

 elliptic to ovate finely doubly serrate or lobed. Fruit short- 

 ellipsoid to globose, cherr3'-red to scarlet. New Eng. to Iowa 

 and Pa. 



1-K Crataegus laurentiana Sarg. Fernald's Hawthorn. 

 A large, much-branched shrub or small tree with long thorns. 

 Leaves oblong to oblong-ovate, sharply doubly serrate or 

 lobed. Fruit ellipsoid, dark crimson. Xewf., X. S., Quebec, 

 Me., and shores of Lake Superior. 



!(>. Crataegus lucorum Sarg. Grove Hawthorn. A 

 shrub or small tree with ascending branches. Leaves oblong- 

 ovate to broadly ovate, doubly serrate or lobed. Fruit pyri- 

 form — ellipsoid, crimson. 111. and Wis. 



17. Crataegus irrasa Sarg. Blanchard's Hawthorn. A 

 shrub or small tree with numerous spines. Leaves ovate to 

 elliptic, doubly serrate or lobed. Fruit subglobose to short- 

 ellipsoid, red or scarlet, somewhat pubescent. Quebec to Vt. 

 and N. Y. 



is. Crataegus macaCileyae Sarg. Macaulcy's Haw- 

 thorn. A small round-topped tree with somewhat pendulous 

 branches. Leaves ovate to oval, doubly serrate or lobed. 

 Fruit subgloliosc to short-ellipsoid, dark crimson. N. Y. 



1!>. Crataegus bicknelli Eggl. Ricknell's Hawthorn. 

 A round-topped shrubby tree with numerous stout thorns. 

 Leaves ovate or oblong-ovate, sharply doubly serrate and 

 lobed. Fruit globose, red. Mass. 



•20. Crataegus chrysocarpa Ashe. Roundloal' Maw 

 thorn. A beautiful, round-topped shrub or siuall tree with 

 numerous thorns. Leaves ovate-orbicular or obovate. doubly 

 serrate or lobed. shining above. Fruit depressed-globose to 

 short-ovoid, red. X. S. and X. P.. to Saskatoh.. south to X. (\. 

 Xeb., and N. M. 



