94 ^'EW YORK STATE MUSEUM 



mm long and 4 to 5 mm wide, the narrow hypostyle extending nearly 

 to the base of the nutlet. 



A shrub with stout, slightly zigzag glabrous branchlets light 

 orange-green and marked by numerous orange colored lenticels 

 when they first appear, becoming light chestnut-brown and lustrous 

 at the end of their first season and dull red-brown the following 

 year, and armed with stout curv-ed chestnut-brown shining spines 

 3 to 3.5 cm long. 



Rocky hilltops north of the Mohawk river, Beaver brook valley, 

 three miles east of Herkimer, J. V. Haberer (no. 2444, type), Oc- 

 tober 1907, May 28 and October i, 1912. 



This handsome and distinct plant is named in memory of James 

 Hadley M.D. (1785-1869), professor of chemistry and natural 

 sciences in the Fairfield Medical College of Physicians and Surgeons 

 at Fairfield, Herkimer county, and later professor of chemistry and 

 natural sciences in Hamilton College, an active and successful 

 student of the plants of central New York and at Fairfield in- 

 structor in botany of Asa Gray. 



Crataegus suavis Sargent 

 N. Y. State Mus. Bui. 122. 59 (1908). 

 Clayton, Ithaca, Frankfort, East Aurora, Bufifalo, Niagara Falls, 

 Hemlock lake. Coopers Plains, Salamanca, Cattaraugus creek. 



Crataegus boothiana Sargent 



N. Y. State Mus. Bui. 122. 58 (1908). 

 Rochester, Monroe, Fillmore, Tuscarora, Almond. 



Crataegus slavinii Sargent 

 N. Y. State Mus. Bui. 122. 57 (1908). 

 Brighton, Hemlock lake. Almond and Salamanca. 



Crataegus ascendens Sargent 

 Rhodora V. 141 (1903) ; N. Y. State Mus. Bui. 105. 57 (1906). 

 Thompsons lake near Albany ; also in western Vermont. 



Crataegus acuminata Sargent 



N. Y. State Mus. Bui. 105. 56 (1906). 

 Near Albanv and Herkimer. 



