498 



TREES OF NORTH AMERICA 



until the end of October, on slender elongated pedicels, in broad loose many-fruited 

 drooping clusters, globose, briglit scarlet, marked by large pale dots, ^-f in diam- 

 eter; calyx prominent, with a broad shallow depression, and much enlarged coarsely 

 serrate closely appressed persistent lobes; flesh thick, yellow, juicy, sweet and pulpy; 

 nutlets 2 or 3, ^' long, ^' broad, prominently ridged on the back, with a broad 

 rounded doubly grooved ridge, the ventral cavities wide and deep. 



A tree, occasionally 20 high, with a short trunk 5'-6' in diameter, covered with 

 dark red-brown scaly bark, stout ascending branches forming a broad irregular head, 

 and stout more or less zigzag glabrous dark orange-brown lustrous branchlets be- 

 coming dull gray-brown in their second season and ultimately ashy gray, and armed 

 with numerous stout slightly curved briglit chestnut-brown shining spines l^'-2^' 

 long; or usually shrubby and much smaller, and often flowering when only a few 

 feet high. 



Distribution. Valley of the St. Lawrence River near Montreal to the coast of 

 New England, and through northern New York and southern Ontario to northern 

 Illinois. 



127. Crataegus gemmosa, Sarg. 



Leaves broadly oval or rarely broadly obovate, gradually narrowed and cuneate 

 or occasionally rounded at the entire base, sharply and usually doubly serrate from 

 below the middle, with straight glandular teeth, and often slightly lobed toward the 

 acute or acuminate apex, with short acute lobes, dark red and villose as they unfold, 

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

 then membranaceous, light yellow-green, nearly glabrous above and pale and villose 

 below, and at maturity thick and firm in texture, very dark dull green on the upper 

 surface, pale and pubescent on the lower surface along the stout yellow midribs, 



'HW'' 



deeply impressed and occasionally puberulous above, and along the 4 or 5 pairs of 

 slender primary veins extending obliquely to the end of the leaf, 1^'-21' long, l'-2' 

 wide; their petioles stout, villose or pubescent, more or less winged above, glandular 

 while young, with minute bright red caducous glands, usually pink in the autumn, 

 i'-l' long; on vigorous shoots more coarsely serrate, frequently divided into short 

 acute lateral lobes, and often 4' long and 3' wide, with rose-colored midribs and 

 stout spreading primary veins, their stipules often lunate, acuminate, coarsely gland- 



