REPORT OF THE STATE BOTANIST I904 23 



J. Dunbar. In this and the preceding species the flowers have 20 

 stamens with red anthers and the fruit is longer than broad. 



Crataegus leiophylla Sarg. 

 Seneca park, Rochester. This thorn takes its specific name from 

 the smoothness of its leaves. Its flowers have 20 stamens but the 

 anthers are pale yellow. Its fruit remains green and pruinose late 

 in the season, ripening in November. 



Crataegus formosa Sarg. 

 Seneca park, Rochester. It has been reported from Buffalo by 

 Mr Dunbar. Its stamens are 20 and the anthers pale yellow. Its 

 fruit also is longer than broad. The tips of the calyx lobes are 

 often deciduous from the ripe fruit. 



Crataegus compta Sarg. 

 Seneca park and Genesee Valley park, Rochester. It has also 

 been found at Rush, Monroe co. and Avon, Livingston co. by Mr 

 Baxter and at Buffalo by Mr Dunbar. Its stamens are 10 and the 

 fruit is generally longer than broad, and is often somewhat pointed 

 at the base. It is peculiar in having a bitter taste. The mature 

 leaves are dark bluish green on the upper surface. 



Crataegus diffusa Sarg. 

 Seneca park, Rochester. Niagara Falls. C. S. Sargent. A 

 shrub with numerous stems and widespreading branches. Its 10 

 stamens with purple anthers constitute one of its peculiar features. 

 On vigorous young shoots the leaves are sometimes as broad as 

 they are long and they have petioles shorter than those of the 

 leaves on lateral or fertile branches. The fruit is similar in size 

 and shape to that of C. compta. 



Crataegus opulens Sarg. 

 Eastern bank of the Genesee river in the northern part of Roches- 

 ter. The opulent thorn is a rare but w^ell marked species. In the 

 leaves of young and vigorous shoots the basal pair of lobes is 

 enlarged and distinctly separated from the pair above by deep clefts 

 in the margins of the leaf. This gives a three lobed appearance to 

 the leaf. Sometimes the basal lobes are themselves slightly lobed. 

 The fruit is either globose or depressed globose. 



Crataegus maineana Sarg. 

 West side of Seneca park, Rochester. Near Portage, Livingston 

 CO. Also found at Adams Basin by Mr Baxter and at Buffalo by 



