66 NEW YORK STATE MUSEUM 



thin, coarsely serrate, deeply lobed, with narrow acuminate lobes, 

 often 8-10 cm long and 6-8 cm wide, with short broadly winged 

 petioles and foliaceous lunate serrate stipules. Flowers not seen. 

 Fruit ripening late in August and early in September, on slender 

 sparingly hairy pedicels, in few-fruited erect or spreading clusters, 

 oval to subglobose, bright cherry -red, lustrous, slightly hairy at the 

 ends, 8-10 mm long and 7-8 mm wide; calyx prominent, with a 

 broad deep cavity, and small acuminate reflexed and closely ap- 

 pressed nearly entire lobes slightly villose on the upper side and 

 persistent on the ripe fruit; flesh thin, greenish yellow, dry and 

 mealy; nutlets three or four, acute at the ends, ridged on the back, 

 with a high narrow often grooved ridge, 6-7 mm long and 4-5 mm 

 wide. 



A round topped compact shrub 2-3 m tall, with numerous slender 

 erect stems covered below with dark brown scaly bark and pale 

 above, and slender slightly zigzag light orange-brown branchlets, 

 armed with many slender straight or slightly curved bright 

 chestnut-brown shining spines 3-4 cm long. 



Dense thickets on rich bottom lands close to the banks of the 

 Hudson river, North Greenbush, Peck and Sargent (# 72 ng, 

 type), August 17, 1905; North Albany, Charles H. Peck, Sep- 

 tember 1905. 



Stamens 10-18 



Crataegus divergens n. sp. Sarg. 



Crataegus irrasa var. divergens Peck, N. Y. State Mus. 

 Bui. 75. p. 51. 1904. 



Leaves oblong obovate to rhombic, acuminate, gradually nar- 

 rowed and concave cuneate at the entire glandular base, finely 

 crenately serrate above, with gland-tipped teeth, and divided above 

 the middle into four or five pairs of slender acuminate lobes point- 

 ing toward the apex of the leaf, nearly fully grown when the flowers 

 open about the 10th of May and then thin, yellow green, lustrous 

 and sparingly hairy above, pale and slightly villose along the midribs 

 and veins below, with short hairs persistent through the season, at 

 maturity thin but firm in texture, dark yellow green, glabrous and 

 very lustrous on the upper and pale on the lower surface, 4-6 cm 

 long and 3.5-4 cm wide, with slender yelow m drib , and thin veins 

 arching obliquely to the points f the lobes; petioles slender, wing- 

 margined at the apex, grooved on the upper side, villose-pubescent 

 when they first appear, becoming glabrous, glandular toward the 



