TREES OF NORTH AMERICA 



Anthers yellow. 



Leaves oblong-obovate, rounded or gradually narrowed at the apex, subcoriaceous, 



pale below ; fruit subglobose, orange color, with a red cheek. 



18. C. berberifolia (C). 

 Leaves cuneate, oblong or obovate-cuneif orm, rounded and obtuse or rarely acute 



at the apex, coriaceous, glabrate or slightly scabrous above ; fruit subglobose, 



orange or yellow, with a red cheek. 19. C. edura (C). 



Leaves oblong to obovate-cuneif orm, rounded or acute at the apex, subcoriaceous, 



glabrous or glabrate above, pale below ; fruit oval to short-oblong, yellow. 



20: C. crocina (C). 

 Leaves oblong to obovate-cuneifonn, rounded or obtuse or rarely truncate at the 



apex, coriaceous, scabrate above ; fruit globose to subglobose, bright red or 



scarlet. 21. C. fera (C). 



Leaves obovate, acute, thin to subcoriaceous ; fruit subglobose to short-oblong, 



somewhat flattened at the apex, bright orange-red. 22. C. Mohri (C). 



1. Glabrous at maturity. 

 *Stamens 10. 



- Anthers rose color or purple. 



1. Crataegus Crus-galli, L. Cock-spur Thorn. 



Leaves glabrous, obovate, acute or rounded at the apex, cuneate and gradually 

 narrowed to the slender entire base, sharply serrate above, with minute appressed 



usually gland-tipped teeth, when they unfold tinged with red, membranaceous and 

 nearly fully grown when the flowers open about the 1st of June, and at maturity 

 thick and coriaceous, dark green and lustrous above, pale below, reticulate-veined, 

 1/-4' long, \'-V wide, with slender midribs, and primary veins within the parenchyma, 

 turning bright orange and scarlet in the autumn before falling; their petioles 

 stout, wing-margined toward the apex, '-f long; on vigorous shoots acute or accu- 

 minate, coarsely serrate, often 5'-6' long. Flowers J' in diameter, on slender 

 pedicels, in many-flowered glabrous corymbs; calyx-tube narrowly obconic, glabrous, 

 the lobes linear-lanceolate, entire or minutely glandular-serrate; stamens 10; anthers 

 rose color; styles usually 2, surrounded at the base by tufts of pale hairs. Fruit 



