94 NEW 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 curved 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 1, 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. Bul. 122. 59 (1908). 
Clayton, Ithaca, Frankfort, East Aurora, Buffalo, Niagara Falls, 
Hemlock lake, Coopers Plains, Salamanca, Cattaraugus creek. 
Crataegus boothiana Sargent 
N. Y. State Mus. Bul. 122. 58 (10908). 
Rochester, Monroe, Fillmore, Tuscarora, Almond. 
Crataegus: slavinii Sargent 
N. Y. State Mus. Bul. 122. 57 (1908). 
Brighton, Hemlock lake, Almond and Salamanca. 
Crataegus ascendens Sargent 
Rhodora V. 141 (1903); N. Y. State Mus. Bul. r05. 57 (1906). 
Thompsons lake near Albany; also in western Vermont. 
Crataegus acuminata Sargent 
N. Y. State Mus. Bul. 105. 56 (1906). 
Near Albany and Herkimer. 
