ROSACE^E 



403 



Often cultivated as an ornamental plant and for hedges in the eastern United States, 

 and very frequently in the countries of eastern and northern Europe. 



2. Crataegus Canbyi Sarg. 



Leaves oblong-ovate to ovate, obovate or oval, acute, acuminate or rarely rounded at 

 apex, gradually narrowed, cuneate and entire at base, and coarsely often doubly serrate 

 above the middle, more than half grown when the flowers open about the 1st of May and 

 then glabrous or very rarely with a few scattered hairs on the upper side of the midrib and 

 on the'corymbs, and at maturity coriaceous, glabrous, dark green and very lustrous above, 

 pale and dull below, 2'-2|' long, and l'-l' wide, with a thick pale midrib, and 4 or 5 pairs 

 of remote primary veins conspicuous on the lower surface; petioles glandular with scattered 





Fig. 354 



dark red persistent glands, red below the middle, '-' in length; leaves at the end of 

 vigorous shoots often deeply and irregularly divided into broad acute lobes, and fre- 

 quently 3'-4' long and 2' wide. Flowers f ' in diameter, on long slender pedicels, in broad 

 loose many-flowered long-branched corymbs; calyx- tube narrowly obconic, the lobes entire,, 

 or serrate with minute scattered glandular teeth; stamens usually 10, occasionally 12 or 

 13; anthers, small, rose color; styles 3-5. Fruit ripening in October but persistent until 

 after the beginning of winter, on elongated slender stems, in loose many-fruited drooping 

 clusters, short-oblong to subglobose, rounded at the ends, with a distinct depresssion at 

 the insertion of the stalk, lustrous, dark crimson, marked by occasional large pale dots, 

 |'-f long; calyx-lobes reflexed, closely appressed, often deciduous before the fruit ripens; 

 flesh thick, bright red, very juicy; nutlets 3-5, with a broad rounded ridge, bright chestnut- 

 brown, about I' long. 



A bushy tree, sometimes 20 high, with a trunk 12'-18' in diameter, large ascending wide- 

 spreading branches forming a broad open irregular head occasionally 30-35 in diameter,, 

 and glabrous chestnut-brown branchlets armed w r ith thick usually straight chestnut-brown 

 spines f'-l' long. 



Distribution. Hedges and thickets near Wilmington, Newcastle County, Delaware; 

 shores of Chesapeake Bay (near Perry ville, Cecil County), Maryland, and in eastern 

 Pennsylvania. 



3. Crataegus peoriensis Sarg. 



Leaves obovate, short-pointed or occasionally rounded at the broad apex, gradually nar- 

 rowed, cuneate and entire below, sharply and often doubly serrate usually only above the 

 middle, and sometimes irregularly lobed with short broad terminal lobes, when they unfold 





