50 NEW YORK STATE MUSEUM 



Crataegus contigua Sarg. 



Contiguous thorn 

 Rhodora, o : 115 



Bhrub G-10 feet tall with spreading or ascending branches; 

 leaves thin, ovate, acute or acuminate at the apex, rounded or 

 broadly cuneate at the base, serrate, with 4-5 distinct, sharp 

 pointed or acuminate lobes each side, at flowering time pale green 

 and clothed above with short appressed whitish hairs, glabrous 

 below, when mature, firm, dark green above, paler below, 1.5-2.5 

 inches long, 1-2 broad, petioles slender, glabrous, slightly glandu- 

 lar, 6-12 lines long; flowers on slender glabrous peduncles, calyx 

 lobes abruptly narrowed from broad bases, linear, entire or with 

 occasional glands toward the base, stamens 20, anthers purple or 

 pinkish purple; fruit erect or drooping, subglobose or oblong, 

 scarlet, flesh yellow, nutlets 4-5. 



Shaly soil near Lansingburg. Flowers open about the middle 

 of May, fruit ripens early in September and soon falls. In our 

 plants the flowers open and the fruit ripens two or three weeks 

 earlier than in the type and the number of stamens ranges from 

 12-19. In no case have I found a flower with 20 stamens. Never- 

 theless these variations do not seem to be of sufficient importance 

 to warrant a separation of the plants. The unfolding leaves are 

 tinged with brownish red. 



Crataegus irrasa Sarg. 



TJnpolislied thorn 

 Rhodora, 5 : 116 

 Shrub G-12 feet tall with numerous slender spreading or ascend- 

 ing branches; leaves thin, ovate or oval, acute at the apex, cuneate 

 at the base, laciniate serrate, when young clothed .above with 

 appressed whitish hairs, villose below on the midrib and principal 

 veins, when mature firm, dark green and shining above, paler or 

 yellowish green below, petioles 6-12 lines long, slender, slightly 

 margined at the apex, sparingly glandular ; flowers 6-7 lines broad, 

 supported on villose peduncles, calyx tube densely villose, its lobes 

 lanceolate, glandular serrate, villose, reflexed, appressed, stamens 

 20, anthers pale yellow ; fruit subglobose or oblong, dark red, nut-^ 

 lets 4-5. 



