420 



TREES OF NORTH AMERICA 



23. Crataegus crocina Beadl. 



Leaves oblong-obovate, rounded or acute at apex, gradually narrowed and cuneate at 

 the slender entire base, and sharply serrate above the middle with straight or incurved 

 glandular teeth, when they unfold more or less pubescent, and at maturity subcoriaceous, 

 dark green, lustrous and glabrous or glabrate above, pale and covered below with short 

 matted pale hairs most abundant on the thin midrib and obscure primary veins, l|'-2' 



Fig. 375 



long, and ^'-1' wide; turning in the autumn orange, yellow, or brown; petioles slender, puber- 

 ulous, about I' in length; leaves at the end of vigorous shoots elliptic to oblong-obovate, 

 acuminate more coarsely serrate, often 2|' long and -|' wide. Flowers opening at the end 

 of April when the leaves are fully grown, ^'-f ' in diameter, on short villose pedicels, in 

 compact few-flowered villose corymbs; calyx narrowly obconic, coated with matted white 

 hairs, the lobes narrow, acute, entire or sparingly serrate, glabrous on the outer surface, 

 slightly villose on the inner surface toward the apex; stamens 20; anthers yellow; styles 

 usually 2 or 3. Fruit ripening in October, ellipsoidal or short-oblong, nearly \' long, yellow, 

 the calyx prominent, with elongated mostly recurved lobes; nutlets usually 2, narrowed 

 and acute at the ends, ridged on the back, about \' long. 



A tree, 18-20 high, with a short trunk 4 '-6' in diameter, spreading branches forming 

 a wide flat-topped head, and slender mostly unarmed branchlets covered at first with 

 matted pale hairs, and dark orange-brown and puberulous in their first winter. 



Distribution. Low woods near Opelousas, St. Landry Parish, Louisiana. 



24. Crataegus f era Beadl. 



Leaves oblong-obovate, rounded or rarely acute at apex, gradually narrowed and con- 

 cave-cuneate at the slender entire base, and sharply serrate above the middle with straight 

 or incurved teeth, fully grown when the flowers open the middle of April and then thin, 

 covered above by short white hairs, and slightly villose along the midrib and veins below, 

 and at maturity coriaceous, dark green, scabrate and lustrous on the upper surface, pale 

 and puberulous on the lower surface on the slender midrib and obscure primary veins, 

 2|'-3' long, and about f wide; turning in the autumn orange, yellow, or brown; petioles 

 slender, pubescent early in the season, becoming puberulous, f '-f ' in length; leaves at the 

 end of vigorous shoots oblong-obovate, rounded or acute and often short-pointed at apex, 

 coarsely serrate, often 2|' long, and \\' wide. Flowers: \' in diameter, on long slender 

 villose pedicels, in broad lax compound many-flowered corymbs covered more or less 

 thickly with white hairs: calyx-tube narrowly obconic, slightly hairy near the base, gla- 



