496 TREES OF NORTH AMERICA 



and unarmed, or sparingly armed with slender nearly straight purple shining spines 

 about r l()n<r. 



Distribution. Oak woods in moist rich soil near the banks of the Calumet River, 

 Calumet, Illinois. 



125. Crataegus Devsreyana, Sarg. 



Leaves ovate, acuminate or abruptly long-pointed at the apex, abruptly narrowed 

 and concave-cuneate at the entire often uusyminetrical base, coarsely doubly serrate 

 above, with straight or incurved gland-tipped teeth, and slightly divided above the 

 middle into several pairs of small acuminate spreading lobes, about one third grown 

 when the Howers open during the last week of May and then membranaceous, dark 

 yellow-green, and covered above with short lustrous white hairs and light yellow- 

 green and glabrous below, and at maturity tiiin, yellow-green and scabrate on the 

 upper surface, pale on the lower surface, 3'-4' long, 2'-|' wide, with stout midribs 

 deeply impressed on the upper side and 6 or 7 pairs of thin primary veins arching 

 to the points of the lobes; their petioles stout, wing-margined at the apex, deeply 

 grooved, sparingly villose along the upper side, soon glabrous, glandular, with occa- 

 sional minute dark glands, usually dull orange color in the autumn, f'-l' long; on 

 vigorous shoots more deeply lobed and more coarsely serrate, subcoriaceous, often 

 4' long and 3^' wide, and gradually narrowed into stout broad-winged coarsely gland- 

 ular petioles, their stipules foliaceous, stipitate, lunate, acutely lobed, glandular-ser- 

 rate, with minute dark red glands, sometimes ^' long, persistent through the season. 

 Flowers about ^' in diameter, on slender hairy pedicels, in wide lax many-flowered 

 slightly villose compound corymbs; calyx-tube narrowly obconic, villose at the base, 

 glabrous above, the lobes slender, elongated, acuminate, finely glandular-serrate 

 usually only above the middle, dark green and glabrous on the outer surface, villose 

 on the inner surface; stamens 7-10, usually 10; anthers small, dark rose color; 



styles 2 or 3, usually 2. Fruit ripening from the first to the middle of October and 

 falling a few weeks later, on long slender puberulous pedicels, in wide many-fruited 

 drooping clusters, subglobose to short-oblong, full and rounded at the ends, scarlet, 

 lustrous, marked by occasional large pale dots, ^' in diameter; calyx prominent, with 

 elongated glandular-serrate lobes dark red on the upper side near the base, usually 



