ROSACES 



505 



with a thin midrib, and 4 or 5 pairs of primary veins extending to the point of the lobes; 

 petioles slender, glandular, slightly winged at apex, glabrous, often dark red toward the 

 base, f'-l' in length; leaves at the end of vigorous shoots oblong-ovate, oval or often nearly 

 orbicular, more deeply lobed, and frequently 2|'-3' long and wide. Flowers f '-f ' in diam- 

 eter, on slender pedicels, in broad loose many-flowered glabrous corymbs; calyx-tube 



Fig. 461 



broadly obconic, glabrous, the lobes gradually narrowed from a broad base, acute, coarsely 

 glandular-serrate, glabrous, often bright red toward the apex; stamens 10; anthers small, 

 pale yellow; styles 3 or 4, Fruit ripening and falling late in October, on short stout pedicels, 

 in drooping many-fruited glabrous clusters, subglobose but occasionally rather longer than 

 broad, dark crimson, marked by scattered dark dots, about \' in diameter; calyx enlarged, 

 conspicuous, the lobes bright red on the upper side toward the base, wide-spreading or erect; 

 flesh thin, yellow r , dry and sweet; nutlets 3 or 4, rounded at the ends, about \' long. 



A bushy tree, occasionally 20 high, with a short trunk 8'-10' in diameter, covered with 

 dark red-brown scaly bark, stout ascending branches forming a broad round-topped sym- 

 metrical head, and slender glabrous branchlets light green when they first appear, bright 

 fed-brown and lustrous during their first year, and ultimately ashy gray, and armed with 

 many stout straight or slightly curved chestnut-brown shining spines l'-l|' long. 



Distribution. Nova Scotia, southern Quebec and Ontario to Manitoba and Saskatche- 

 wan (Saskatoon), and southward through New England, eastern and northern New York, 

 the southern peninsula of Michigan and northern Indiana; in Pennsylvania (Lackawanna, 

 Bucks, Northampton and Blair Counties); common in the New England coast region; a 

 form (var. pubera Sarg.) with young leaves covered above with soft pale hairs and pubes- 

 cent on the under side of the midrib and veins and villose petioles, flowers with a pubescent 

 calyx-tube, in villose corymbs, becoming pilose when the fruit ripens, and young branchlets 

 covered with long matted pale hairs, ranges from Newfoundland to the shores of Lake 

 St. John, Province of Quebec, northern Ontario, Winnepeg and Manitoba, and southward 

 through the maritime provinces of Canada, New England to southern Connecticut, north- 

 ern and western New York (near Buffalo, Essex County), the northern peninsula of Michi- 

 gan, northeastern Wisconsin; in central Minnesota (St. Cloud, Stearns County); common 

 northward. 



110. Crataegus Jonesae Sarg. 



Leaves elliptic to ovate, acute, gradually narrowed or broad-cuneate at the entire 

 base, coarsely doubly serrate above with spreading or incurved teeth tipped with decidu- 



