ROSACE^E 



441 



symmetrical head, and slender nearly straight glabrous chestnut-brown branchlets be- 

 coming gray, and armed with thin nearly straight bright chestnut-brown shining spines 

 l'-lf long; sometimes a shrub, with numerous stems. 



Distribution. Rich moist soil in the neighborhood of streams; northwestern Georgia 

 and northeastern Alabama. 



44. Crataegus glabriuscula Sarg. 



Leaves oblong-ovate to semiorbicular, acute or often short-pointed or rarely rounded 

 at apex, gradually narrowed from below the middle to the slender entire base, coarsely 

 and often doubly serrate usually only above the middle with broad straight gland-tipped 

 teeth, and sometimes divided toward the apex into 2 or 3 short acute lobes, nearly fully 

 grown when the flowers open the 1st of April, and then membranaceous and slightly pilose 

 above with scattered hairs most abundant along the base of the midrib, and at maturity 

 subcoriaceous, hard and firm, dark green and lustrous on the upper surface, pale on the 

 lower surface, 1^-2' long, and f'-l' wide, with a thin light yellow midrib, and primary 



Fig. 396 



veins extending obliquely toward the end of the leaf, conspicuous secondary veins and reti 1 

 culate veinlets; petioles slender, wing-margined, |' in length; leaves at the end of vigorous 

 shoots often ovate, broadly cuneate at base, much more coarsely serrate, more frequently 

 lobed, 2'-2|' long and wide. Flowers about \' in diameter, on long slender pedicels, in 

 few-flowered rather compact corymbs; calyx-tube broadly obconic, glabrous, the lobes 

 short, gradually narrowed from a broad base, entire, villose on the inner surface; stamens 

 20, anthers nearly white; styles 5. Fruit ripening in September and often persistent until 

 late into the winter, on long slender pedicels, in compact many-fruited drooping clusters, 

 short-oblong to obovoid or nearly globose, dull orange color, marked by minute dark dots, 

 about \' long; calyx enlarged, conspicuous, with spreading or closely appressed lobes dull 

 red on the upper side at base, often deciduous before the fruit ripens; flesh very thin, yel- 

 low, dry and hard; nutlets 5, rounded and sometimes obscurely grooved on the back, about 



tV long- 



A tree, 20-25 high, with a tall straight trunk often a foot in diameter, covered with 

 thin dark brown scaly bark, long ascending branches forming a narrow head, and slender 

 nearly straight branchlets, unarmed or armed with occasional slender straight chestnut- 

 brown lustrous spines f'-l' long. 



Distribution. Bottom-lands of the Trinity River and its branches near Dallas, Dallas 

 County, Texas, in forests of Elms and Nettle-trees. 



