508 TREES OF NORTH AMERICA 



XII. INTRICATE. 

 CONSPECTUS OF THE ARBORESCENT SPECIES. 



Stamens 10; leaves broad-ovate to oval. 



Fruit depressed-globose, yellow-green flushed with russet-red; anthers pale yellow; calyx- 

 lobes eglandular. 112. C. Boyntonii (A, C). 

 Fruit subglobose, red or russet-red; anthers pale rose color; calyx-lobes glandular with 

 stalked glands. 113. C. Buckleyi (A). 

 Stamens 20. 



Leaves oval to ovate or oblong-obovate; fruit short-oblong, dull red, often with a bright 

 russet face; stamens usually 5-15; anthers small, pale yellow. 114. C. venusta (C). 

 Leaves oblong-ovate to elliptic or ovate; fruit subglobose to short-oblong, yellow or 

 orange-yellow, more or less flushed with red; anthers large, purple. 



115. C. Sargentii (C). 



112. Crataegus Boyntonii Beadl. 



Leaves broad-ovate to oval, acute, rounded or cuneate at the entire glandular base, 

 sharply and often doubly serrate above with glandular teeth, and frequently divided into 

 2 or 3 pairs of short broad acute lateral lobes, w r hen they unfold deep bronze-red, slightly 



Fig. 464 



glandular and viscid, nearly fully grown when the flowers open early in May, and then 

 membranaceous and glabrous or occasionaly slightly pilose, and at maturity subcoriaceous, 

 glabrous, yellow-green on the upper surface, pale on the lower surface, l'-2^' long, and l'-2' 

 wide, with a thin pale yellow midrib and 4-7 pairs of slender veins; petioles stout, glandular 

 often to the base with bright red glands, slightly winged above, usually about \' in length; 

 leaves at the end of vigorous shoots often as broad as long, truncate or cordate at base, and 

 more coarsely dentate and more deeply lobed. Flowers about f ' in diameter, on short 

 slender pedicels, in compact 4-10-flowered compound corymbs; calyx-tube broadly obconic, 

 the lobes abruptly narrowed from a broad base, acute or rounded at apex, entire or ob- 

 scurely and irregularly glandular-serrate above the middle; stamens 10; anthers large, pale 

 yellow; styles 3-5, surrounded at base by a broad thick ring of hoary tomentum. Fruit 

 ripening and falling early in October, on short stout pedicels, in few-fruited erect clusters, 

 depressed-globose, more or less angled, yellow-green flushed with russet -red, marked with 

 small dark dots, usually about \' in diameter; calyx prominent, the large spreading lobes 



