I06 NEW YORK STATE MUSEUM 



A shrub about i m high, with small intricately branched erect 

 stems, and slender nearly straight branchlets deeply tinged with red 

 when they first appear, becoming bright chestnut-brown,, lustrous, 

 and marked by small pale lenticels in their first season and dull 

 red brown the following year, and armed with very numerous 

 slender nearly straight chestnut-brown shining spines 5.5-6 cm long. 



Moist hillsides, Coopers Plains, C. H. Peck (^67, type), June 2 

 and September 21, 1906. v 



I am glad to associate with this distinct and pretty species the 

 name of the industrious and careful student of the thorns which 

 cover the hills surrounding his home. 



Crataegus modesta Sargent 



Rhodora III. 28 (1901); Acad. Sci. Phila. Proc. 635 (1905). 



Moist hillsides. Coopers Plains, G. D. Cornell (^39), September 

 21, 1905, June 2, 1906; also western Vermont and eastern New 

 York to eastern Pennsylvania. 



AIVOMAL.AE. 



Stamens 10 or less ; anthers rose color 



Crataegus singularis n. sp. 



Leaves ovate to oval, long-pointed and acuminate at the apex, 

 gradually or abruptly narrowed to the concave-cuneate or rounded 

 entire base, coarsely often doubly serrate above with straight glan- 

 dular teeth, and slightly divided usually only above the middle into 

 5 or 6 pairs of small acuminate spreading lobes ; nearly half grown 

 when the flowers open about the 20th of May and then very thin, 

 convex, dark yellow-green and strigose above and pale yellow-green 

 and slightly villose along the priniary veins below, and at maturity 

 thin, glabrous, dark yellow-green and scabrate on the upper sur- 

 face, light yellow-green and glabrous on the lower surface, 6-7 

 cm long and 4-4.5 cm wide, with slender yellow midribs and 

 primary veins; turning yellow in the autumn before falling; petioles 

 slender, slightly wing- margined at the apex, sparingly hairy on 

 the upper side while young, soon becoming glabrous, glandular, 

 with minute dark glands, often rose color in the autumn, 2-3 cm 

 in length ; leaves on vigorous shoots long-pointed, narrowed and 

 rounded at the base, more coarsely serrate, deeply lobed, with 

 slender acuminate lobes, often 6-y cm long and 5.5-6 cm wide. 

 Flowers 1.5-1.9 cm in diameter, on long slender slightly villose 



