450 



TREES OF NORTH AMERICA 



of short acute or acuminate lateral lobes, when they unfold bright red and glabrous with 

 the exception of a few r short caducous hairs on the upper side of the base of the midrib, 

 nearly fully grown when the flowers open from the middle to the end of May and then mem- 

 branaceous and bluish green, and at maturity subcoriaceous, dark blue-green and often 

 glaucous above, pale below, I'-l?' long, and '-!' wide, with a slender midrib, and 3 or 4 pairs 

 of thin primary veins running to the point of the lobes; late in the autumn turning dull 

 orange color; petioles slender, glandular, slightly winged at the apex, often bright red in 

 early spring and in the autumn, I'-l?' in length; leaves at the end of vigorous shoots broad- 

 ovate, often rounded at base, more coarsely serrate and more deeply lobed, frequently 

 2|' long and wide, with stouter and more broadly winged petioles. Flowers f'-l/ in 

 diameter, on long slender pedicels, in few-flowered glabrous corymbs; calyx-tube broadly 

 obconic, glabrous, the lobes gradually narrowed from a wide base, long-pointed, finely 

 glandular-serrate below the middle; stamens 20; anthers large, deep rose color; styles 5, 



Fig. 406 



surrounded at base by a thick ring of hoary tomentum. Fruit on long thin light green 

 ultimately bright red pedicels, in few-fruited drooping clusters, 5-angled, apple green and 

 covered with a glaucous bloom until nearly fully ripe, at maturity late in October subglo- 

 bose but rather broader than high, barely angled, ^'~f' in diameter, dark purple-red, 

 marked by many small dull dots, very lustrous; calyx prominent, with a long well-developed 

 tube, and enlarged usually erect lobes often deciduous before the fruit ripens: flesh thick, 

 light yellow; nutlets 5, light-colored, acute at apex, nprrow r ed and rounded at base, deeply 

 grooved on the back, \' long. 



A tree, 15-20 high, with a stem a few inches in diameter, spreading horizontal branches 

 forming a broad open irregular head, and slender glabrous branchlets bright chestnut- 

 brown during their first season, later becoming dark reddish brown, and armed with numer- 

 ous stout straight light chestnut-brown spines \'-\\' long; often shrubby, with several 

 intricately branched stems. 



Distribution. Slopes of low hills often in limestone soil; southwestern. Vermont, west- 

 ward through New York to southern Ontario (neighborhood of Toronto), and through Ohio 

 and Indiana to central and northern Illinois, and southward through eastern Pennsylvania 

 to northern Delaware. 



55. Crataegus georgiana Sarg. 



Leaves ovate, acute or acuminate at apex, rounded or broad-cuneate at base, finely 

 and often doubly serrate \vith straight or incurved gland-tipped teeth, and divided into 



