REPORT OF THE STATE BOTANIST I9I2 75 



ft Stamens 10-20; anthers pink: leaves oblong-obovate ; to- 

 mentose below at maturity; fruit on drooping pedicels, 

 subglobose to short-oblong, crimson. .C. conspicua 

 Iff Stamens 10 or less 



l Anthers rose color or pink ; leaves ovate to obovate ; 

 fruit on drooping pedicels, crimson 

 Young leaves glabrous above ; anthers rose color ; 

 fruit subglobose to obovoid, cavity of the calyx 



deep C. beckiana 



Young leaves covered above by short white hairs ; 

 anthers pale pink ; fruit subglobose, cavity of the 



calyx shallow C. ogdensburgensis 



II Anthers pale yellow 



Fruit on drooping pedicels, subglobose to short-ol)- 

 long; spines stout 

 Leaves rhombic or oval or obovate, short-pointed or 



rounded at the apex C. f e r e n t a r i a 



Leaves broadly ovate to slightly obovate, acute. . . . 



C. h y s t r i c i n a 



Fruit on erect pedicels, subglobose, crimson, not more 



than I cm in diameter; spines long and slender; 



leaves broadly ol)ovate to elliptic or oval 



C. m a c r a c a n t h a 



List of species 



CRUS-GALLI 



Crataegus crus-galli Linnaeus 



Spec. 476 ( 1753). Sargent, Silva N. Am. IV. 91, t. 178 



Near Albany and Hemlock lake region ; not common. 



\'ar. p y r a c a n t h i f o 1 i a Alton, Hort. Kew. 11. 1 70 ( 1 788) 



Rochester, Niagara Falls and La Salle ; not common. 



Var. rubens n. var. 



Anthers white faintly tinged with pink ; flesh of the fruit red, 

 otherwise as in the species. 



On the rich bottom lands bordering the outlet of Canandaigua 

 lake east of the railroad station at Chapin, Ontario county; very 

 common. 



B. H. Slavin (no. 3, type), September 24, 1908, June 14, 1909; 

 (no. 54), September 24, 1908; June 14, 1909. 



