REPORT OP THE STATE BOTANIST 1903 47 



Clayey sioil. Albany and Albia, Rensselaer co. 



When in flower the colored anthers easily separate this species 

 from the preceding one, later it may be recognized by the con- 

 vexity of many of the leaves. The young unfolding leaves are 

 sometimes tinged with red. On vigorous young shoots the leaves 

 often have the basal pair of lobes somewhat enlarged and more 

 distinct than the others. 



Crataegus exclusa Sarg. 

 Excluded thorn 

 Rhodora, 5 : 108 

 Shrub 8-12 feet tall, with widely spreading or ascending 

 branches ; leaves similar to those of the preceding species but with- 

 out the convexity seen in them ; flowers similar but the calyx and 

 peduncles more densely villose or tomentose, the calyx lobes more 

 narrow, elongated and hairy on both surfaces; fruit longer and 

 more narrowed toward the base. 



Clayey soil. Cro^Ti Point and Fort Ann. May, September. 

 Formerly united with C. p r i n g 1 e i but separated from it 

 because of its more shrubby habit, more hairy inflorescence and 

 longer fruit. 



DILATATAE 



Fruit medium or large, subglobose, bright red or scarlet, nutlets 

 5, ridged on the back ; flowers having 20 stamens with rose colored 

 anthers; leaves broad, thin. 



Crataegus dilatata Sarg. 

 Broad leaved thorn 

 Bot Gaz. 31 : 9. Silva N. A. 13 : 113, t 673 

 Tree or large shrub 10-20 feet tall with widely spreading or 

 ascending branches and a broad rounded head ; leaves thin, ovate 

 or deltoid ovate, acute at the apex, subtruncate or slightly cordate 

 at the base, with 4-6 short, acute or sharp pointed lobes each side, 

 serrate with unequal sharp pointed teeth, when young minutely 

 pubescent above with short, stiff, appressed, whitish hairs, gla- 

 brous below or with a few hairs on the midrib and in the axils 

 of the principal veins, 1.5-3 inches long when mature, nearly as 

 broad, those of vigorous young shoots often with the basal pair 



