456 



TREES OF NORTH AMERICA 



ripening and falling early in September, on slender pedicels, in many-fruited drooping 

 clusters, subglobose, bright scarlet, marked by numerous small dark dots, about f ' 

 in diameter; the calyx much enlarged, with spreading coarsely serrate lobes bright 

 red on the upper side toward the base; flesh thin, sweet and yellow; nutlets 5, thin, 

 rounded, and prominently ridged on the back, about \' long. 



A tree, occasionally 20 high, with a tall straight trunk covered with light gray- 

 brown scaly bark, branches spreading into a wide round-topped symmetrical head, 

 and slender glabrous slightly zigzag branchlets armed with few stout straight light 

 brown shining spines l'-2' long. 



Distribution. Low borders of salt marshes and estuaries, Ipswich to Somer- 

 set, Massachusetts, and on the shores of Mt. Hope Bay at Tiverton, Rhode Island. 



87. Crataegus suborbiculata, Sarg. 



Leaves nearly orbicular to oval or rarely to oblong, short-pointed at the apex, 

 full and rounded or broadly cuneate at the entire base, sharply and doubly serrate 

 above, with slender straight or incurved glandular teeth, and often divided above 



the middle into 3 or 4 pairs of short acute lobes, when they unfold pale yellow- 

 green, and somewhat villose on the upper surface toward the base and below in the 

 axils of the principal veins, about one third grown when the flowers open during the 

 first week of June, and at maturity thin but firm in texture, dull dark green above, 

 paler below, usually about \\' long and broad, with slender midribs and 4 or 5 pairs 

 of thin primary veins; their petioles slender, slightly glandular, more or less winged 

 above, f'-l' long; on vigorous shoots nearly orbicular to short-oval, more coarsely 

 serrate and more deeply lobed, and frequently 3' long and broad, their petioles 

 often broadly winged and conspicuously glandular. Flowers |' in diameter, on short 

 stout pedicels, in compact 6-12-flowered glabrous compound corymbs; calyx broadly 

 obconic, the lobes gradually narrowed from broad bases, elongated, acuminate, entire 

 or occasionally obscurely denticulate; stamens 20; anthers small, rose color; styles 

 5, surrounded at the base by a broad ring of hoary tomentum. Fruit falling in 

 October without becoming mellow, on short rigid pedicels, in few-fruited erect clus- 

 ters, subglobose, often rather longer than broad, about f ' in diameter, dull red more 

 or less blotched with green, or often wholly green on one face, or scarlet in one 





