404 



TREES OF NORTH AMERICA 



closely appressed lobes; flesh yellow-green, thin, dry and mealy; nutlets 3-5, thin, 

 rounded, sometimes slightly ridged and grooved on the back, about ^^' long. 



A tree, occasionally 20"^ high, with a tall trunk 5'-0' in diameter, covered with thin 

 fissured bark separating into liglit gray scales tinged with brown, and often armed 

 with long compound spines, ascending or spreading branches forming an oval usually 

 compact symmetrical head, and slender nearly straight glabrous branchlets furnished 

 with thin nearly straight bright chestnut-brown shining spines I'-l^' long; sometimes 

 a shrub, with numerous stems. 



Distribution. l\icli moist soil in the neighborhood of streams; northwestern 

 Georgia and northeastern Alabama. 



38. Crataegus glabriuscula, Sarg. 



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

 rounded at the apex, gradually narrowed from below the middle to the slender en- 

 tire 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 midribs, and at maturity subcoriaceous, hard and firm, dark 

 green and lustrous on the upper surface, pale on the lower surface, l^'-2' long, |'-1' 

 wide, with thin light yellow midribs and primary veins extending obliquely toward 

 the end of the leaf, conspicuous secondary veins and reticulate veinlets; their petioles 

 slender, wing-margined, |' long; on vigorous shoots often ovate, broadly cuneate at 

 the base, much more coarsely dentate and more frequently lobed, 2'-2^' long and 

 wide, their stipules foliaceous, lunate, coarsely glandular-serrate, sometimes 1' broad. 

 Flowers about 1' in diameter, on long slender glabrous pedicels, in few-flowered 

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

 short, gradually narrowed from broad bases, entire, villose on the upper 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 obovate 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 the base, often 



