ROSACEA 



439 



nate, finely glandular-serrate, villose, dark red on the upper side below the middle, 

 spreading or erect; flesh thick, yellow, dry and mealy; nutlets 5, broadly ridged on 

 the back, f^' long. 



A tree, 15-20 high, with a tall stem 8'-10' in diameter, covered with deeply fis- 

 sured bark separating into thin loose plate-like scales, stout wide-spreading branches 

 forming a broad round-topped often symmetrical head, and slender somewhat zigzag 

 branchlets coated at first with hoary tomentum, soon becoming glabrous and light 

 chestnut-brown and lustrous, and armed with straight or slightly curved chestnut- 

 brown spines l^'-2' long. 



Distribution. Limestone ridges; valley of the St. Lawrence Kiver near Montreal, 

 southward through the Champlain valley. 



72. Crataegus submollis, Sarg. 



Leaves ovate, acute, gradually narrowed and cuneate at the nearly entire base, 

 coarsely doubly serrate above, with straight glandular teeth, and divided into 3 or 4 



pairs of short acute lobes, half grown at the end of May or early in June when the 

 flowers open and then roughened above by short stiff pale hairs and soft-pubescent 

 below, particularly along the midribs and veins, and at maturity membranaceous, 

 dark yellow-green and scabrous above, pale below, 3'-3^' long, 2'-2^' wide, with 

 thick yellow midribs and remote primary veins puberulous on the lower side; their 

 petioles stout, nearly terete, more or less winged at the apex, at first tomentose, 

 puberulous at maturity, often bright red toward the base, V-2' long; on vigorous 

 shoots broadly ovate, cuneate, rounded, truncate, or occasionally slightly cordate at 

 the base, often 4' long and 3'-3^' wide, with lunate coarsely glandular-dentate 

 stipules frequently nearly V long. Flo"wers 1' in diameter, on long slender pedicels, 

 in broad many-flowered tomentose compound corymbs; calyx-tube narrowly obconic, 

 covered with a thick coat of long matted white hairs, the lobes gradually narrowed 

 from broad bases, acute, glandular, with large red stipitate glands, glabrous or villose 

 on the outer surface; stamens 10; anthers small, pale yellow; styles 3-5, surrounded 

 at the base by a narrow ring of long white hairs. Fruit ripening and falling during 

 the first half of September, on elongated slender villose pedicels, in broad gracefully 

 drooping many-fruited clusters, pear-shaped, bright orange-red, lustrous, marked by 



