538 



TREES OF NORTH AMERICA 



obliquely to the point of the lobes; petioles stout, wing-margined to below the middle, vil- 

 lose on the upper side early in the season with matted white hairs, becoming nearly gla- 

 brous, ^'-1' in length. Flowers f' in diameter, on long slender slightly villose pedicels, in 

 broad many-flowered hairy corymbs, their bracts and bractlets linear, acuminate, glandular, 

 mostly persistent until the flowers open; calyx-tube narrowly obconic, glabrous, the lobes 

 broad, acuminate, coarsely glandular-serrate, glabrous on the outer, villose on the inner sur- 

 face; stamens 18-20; anthers pale pink; styles 2 or 3. Fruit ripening from the middle to 

 the end of September, on slender slightly hairy pedicels, in few-fruited drooping clusters, 

 subglobose to short-oblong, '-f ' long; calyx prominent, with spreading appressed coarsely 

 serrate lobes; flesh thick, yellow, soft and juicy; nutlets 2 or 3, rounded at the ends, about 

 iV long and nearly as wide, the ventral cavities long, deep, and narrow. 



A tree, 20-25 high, with a trunk often 10' in diameter and 6-7 long, spreading 



Fig. 494 



branches forming a broad round-topped head, and slender slightly zigzag glabrous light 

 red-brown lustrous branchlets, unarmed, or armed with occasional straight slender dark 

 purple shining spines lj'-lf long. 



Distribution. Open pastures, Milton Township and Gleneilyn, Du Page County, and 

 Mokena, Will County, northeastern Illinois. 



143. Crataegus vegeta Sarg. 



Leaves elliptic, acuminate, gradually narrowed and concave-cuneate at the entire base, 

 finely often doubly serrate above, with straight glandular teeth, and slightly divided above 

 the middle into numerous short acute lobes, nearly fully grown w r hen the flowers open at the 

 end of May and then membranaceous, dark yellow-green and roughened above by short 

 rigid pale hairs and densely pubescent below, and at maturity thin and firm in texture, dark 

 dull green and scabrate on the upper surface, pale and pubescent on the lower surface on the 

 slender midrib, and 5 or 6 pairs of thin primary veins arching obliquely to the point of the 

 lobes, 3'-4' long, and If '-2|' wide; petioles slender, broadly wing-margined at apex, villose 

 on the upper side early in the season, becoming glabrous and rose color in the autumn, '-f 

 long. Flowers f '- f ' in diameter, on long slender villose pedicels, in usually 10-12-flowered 

 hairy corymbs, with linear to linear-obovate acute glandular bracts and bractlets becoming 

 reddish and mostly persistent until after the flowers open; calyx-tube narrowly obconic, 

 villose, the lobes slender, acuminate, glandular-serrate, villose; stamens 20; anthers small, 

 light pink or red; styles 2 or 3, usually 3. Fruit ripening late in September, on slender 

 elongated rigid slightly villose pedicels, in few-fruited erect clusters, subglobose, scarlet, 

 lustrous, marked by small pale dots, about f' in diameter; calyx prominent, with a short 



