CHECK LIST OF FOREST TREES 147 



Crataegus holmesiana Ashe. 82 



Range. — Quebec (vicinity of Montreal) and southern Ontario to southern 

 Maine (coast), central and western Massachusetts, western New York, Rhode 

 Island, and eastern Pennsylvania. 



Crataegus holmesiana villipes (Ashe) Sargent. 

 Range. — Pennsylvania (Bucks County). 



Crataegus holmesiana tardipes Sargent. 



Range. — Quebec, Ontario, and central and western New York. 



Note on nomenclature. — Formerly designated as Crataegus tardipes Sargent. 



Crataegus acclivis Sargent. 



Range. — New York (Genesee River at Rochester and Niagara River at 

 Niagara Falls; Erie County). 



Crataegus delecta Sargent. 



Range. — Northeastern Illinois (Wauconda, Fort Sheridan, Deerfield, Lake 

 Forest, and Lockport). 



Crataegus sertata Sargent. 



Range. — Northeastern Illinois (Will, Dupage, Cook, and Lake Counties). 



Crataegus eamesii Sargent. 



Range. — Connecticut (Stratford and Ansonia). 



GROUP 11: DILATATA Sargent 



Crataegus dilatata Sargent. 63 



Range. — Eastern Massachusetts (Ipswich to Somerset); Rhode Island, Mount 

 Hope Bay at Tiverton); western Vermont; New York (vicinity of Albany); 

 Quebec (vicinity of Montreal). 



Crataegus suborbiculata Sargent. 



Range. — Quebec (Caughnawaga Indian Reservation, 64 on ridges near the 

 south border of St. Lawrence River opposite Lachine and on the Island of Mont- 

 real); Ontario (vicinity of Cornwall). 



Crataegus hudsonica Sargent. 



Range. — New York (Hudson River Valley in the vicinity of Albany). 



Crataegus coccinioides Ashe. 65 



Range. — Missouri (vicinity fo St. Louis) ; eastern Kansas; northwest Arkansas. 



« Britton and Shafer (op. cit., 466) have replaced this name with Cratxgus ienuifolia Britton, the judg- 

 ment of these authors being that Crataegus holmesiana Ashe is antedated by Cratngus holmesii Lesquereux. 

 However, we are maintaining as tenable Acer saccharum Marshall and Acer saccharinum Linnaeus. 



« Britton and Shafer (op. cit., 468) consider this species an eastern form only of Crataegus coccinioides 

 Ashe. In the writer's opinion, however, it seems advisable to maintain them as separate species. 



84 Fide Britton and Shafer (op. cit., 454). 



« Britton and Shafer (op. cit., 467) extend the range of this species to the vicinity of Montreal, Quebec. 

 It seems probable that this extension of range should apply to Crataegus dilatata Sargent. 





