1905.] NATURAL SCIENCES OF PHILADELPHIA. 635 



Fruit red or orange-red; leaves blue-green, 7. C. foetida. 



Fruit oblong-obovate, green, more or less blotched with 



red; leaves oblong to oval, smooth, yellow-green, 



8. C. apposita. 

 Stamens 10-18 ; corymbs and pedicels glabrous ; leaves oval to ovate ; 

 fruit globose to depressed-globose, dark red, . . 9. C. reses. 

 Anthers pale pink or rose color. 



Stamens 10 or less (rarely 13 in No. 10). 

 Fruit subglobose to short-oblong. 

 Leaves yellow-green. 

 Leaves ovate to oval. 



Leaves gradually narrowed into a long cuneate base; 

 stamens 8-13, usually 10; fruit green-bronze to red- 

 bronze color, 1.2-1.4 cm. in diameter, 10. C. inducta. 

 Leaves full and rounded at the broad base; stamens 6-8; 

 fruit green or bronze-yellow, about 1 cm. in diameter, 



11. C. definita. 

 Leaves oval to obovate or rhombic; stamens 8-10; fruit 



orange or orange-red, 12. C. painter iana. 



Leaves blue-green, oval ; fruit orange-red or red-bronze color, 



13. C. fulva. 

 Fruit obovate. 



Fruit dark crimson; leaves oval, usually lobed only on 

 vigorous shoots; anthers cream color faintly tinged with 



pink, 14. C. pygnma. 



Fruit reddish-orange color; leaves oval to oblong-ovate, more 



or less lobed ; anthers light purple, ... 15. C. infera. 



Anthers red; stamens 10; fruit oblong, dark red; leaves rhombic to 



obovate, yellow-green, 16. C. schweinitziana. 



Flowers unknown; fruit short-oblong to depressed -globose, bright 

 canary yellow; leaves oblong-ovate, . . 17. C. darlingtoniana. 

 1. Crataegus modesta Sargent. 



llhodora, III, No. 26, 28 (1901). 



Cratcegus premora Ashe, Ann. Carnegie Mus., I, pt. 3 (1902). Gruber, 



Proc. Berks County Nat. Sci. Club, I, 3 (Crataegus in Berks County, II). 



Leaves ovate-oblong, acute, cuneate, rounded or on leading shoots 

 truncate or slightly cordate or abruptly narrowed at the base, sharply 

 doubly serrate, with minute glandular spreading teeth, and divided into 

 numerous short broad acute lobes or occasionally 3-lobed by the greater 

 development of the lowest pair, in the early spring bronze color, hirsute 

 above, with short white hairs and villose below, and at maturity thick 

 and firm in texture, dark yellow-green and scabrous on the upper sur- 

 face, pale and pubescent below along the slender often light-red mid- 

 ribs and 2 or 3 pairs of prominent veins, or scabrous over the lower 

 surface of the leaves of vigorous shoots, 5-7 cm. long and 3.5-6 cm. 

 wide; petioles more or less winged above, villose, glandular, often red, 

 and 2-3 cm. in length. Flowers opening late in May, 1.8-2.5 cm. in 



