438 TREES OF NORTH AMERICA 



Anthers yellow. 



Leaves cuneate at base; calyx-tube glabrous. 



Leaves lanceolate to oblong-obovate, acuminate; fruit short-oblong, dull brick 



red covered with a glaucous bloom. 48. C. nitida (A). 



Leaves obovate to oval or rhombic, acute or rarely rounded at apex; fruit subglo- 



bose to short-oblong, dark crimson. 49. C. mitis (A). 



Leaves, broad and rounded at base, ovate, acute; calyx-tube villose; fruit subglo- 



bose to short-oblong, dark red. 50. C. atrorubens (A). 



Anthers rose color; corymbs villose; fruit red. 



Leaves obovate, oval or ovate, acute, scabrate above; fruit globose to subglobose, 



anthers deep rose color. 51. C. ingens (C). 



Leaves broadly obovate, oval or ovate, acute or acuminate, smooth above; fruit 



globose or depressed-globose; anthers pale rose color. 52. C. penita (C). 



Stamens usually 10; occasionally 12-20; anthers bright red; leaves oblong-obovate to oval, 



usually acute or acuminate; fruit subglobose to short-oblong, bright orange-red. 



53. C. micracantha (C). 



41. Crataegus viridis L. 

 Cratasgus Davisii Sarg. 



Leaves ovate to oblong-obovate or oval, acute or acuminate or rarely rounded at apex, 

 gradually narrowed to the cuneate base, finely serrate above with incurved glandular 



Fig. 393 



teeth, and sometimes slightly 3-lobed toward the apex, tinged with red and slightly hairy 

 above when they unfold, nearly fully grown w r hen the flowers open in April and May, and 

 at maturity membranaceous to subcoriaceous, dark green and lustrous on the upper sur- 

 face, paler on the lower surface, with large axillary tufts of pale hairs, l'-2' long, and 

 2'-!' wide, with a thick midrib and conspicuous primary veins; often turning brilliant 

 scarlet late in the autumn before falling; petioles slender, I'-l?' in length; leaves at the 

 end of vigorous shoots often deeply laterally lobed with narrow acuminate lobes, and 2f '-4' 

 long, and l'-2' wide. Flowers f ' in diameter, on long slender pedicels, in many-flowered 

 corymbs; calyx-tube narrowly obconic, glabrous, the lobes lanceolate, entire; stamens 20; 

 anthers pale yellow; styles 2-5, usually 5, surrounded at base by conspicuous tufts of pale 

 hairs. Fruit ripening in the autumn and mostly persistent on the branches through the 

 winter, on long slender pedicels, in drooping many-fruited clusters, depressed-globose, 

 bright scarlet or orange, $'-J' in diameter; calyx little enlarged, the lobes often deciduous 



