Il8 NEW YORK STATE MUSEUM 



Crataegus spinifera Sargent 

 N Y. State Mus. Bui. 122. 118 (1908). 

 Canandaigua, Coopers Plains and Hemlock lake. 



Crataegus menandiana Sargent 

 N. Y. State Mus. Bui. 105. 68 (1906). 

 Albany. 



Crataegus structilis Ashe 



Jour. Elisha Mitchell Sci. Soc. XIX. 12 (1903). Sargent, N. Y. State 

 Mus. Bui. 122. ^^ (1908). 



Chapinville, Rochester, Hemlock lake, Coopers Plains, Sala- 

 manca; also in eastern Pennsylvania, southern Ontario and in 

 Michigan. 



Crataegus comans .Sargent 

 N. Y. State Mus. Bui. 122 112 (1908). 

 Coopers Plains. 



Crataegus truculenta n. sp. 

 Leaves obovate, acuminate, gradually narrowed to the entire base, 

 finely doubly serrate above with straight glandular teeth, and divided 

 above the middle into four to six pairs of small broad acute lobes; 

 nearly fully grown when the flowers open the first week of June 

 and then yellow-green and scabrate above, paler and soft pubescent 

 below, and at maturity thick, dark yellow-green and nearly smooth 

 on the upper surface, pale yellow-green and slightly villose along 

 the thin midribs and primary veins on the lower surface, 5.5 to 6 cm 

 long and 3.5 to 4 cm wide ; petioles slender, wing-margined at the 

 apex, villose on the upper side early in the season, becoming glab- 

 rous, I to 1.2 cm in length; leaves on vigorous shoots broadly ovate 

 to elliptical, acuminate, gradually narrowed and rounded or cuneate 

 at the base, more coarsely serrate and more deeply lobed, and 6.5 

 to 8 cm long and 6 to 6.5 cm wide, their petioles stout, broadly wing- 

 margined to below the middle, i to 1.2 cm in length. Flowers 1.2 

 to 1.4 cm in diameter, on long slender villose pedicels, in wide 

 20-25-flowered corymbs, the much elongated lower peduncles from 

 the axils of upper leaves ; calyx-tube narrowly obconic, coated at 

 the base with long white hairs, the lobes long, broad, acuminate, 

 laciniately divided, glabrous on the outer surface, slightly villose 

 on the inner surface, reflexed after anthesis ; stamens twenty; 

 anthers yellow ; styles two or three. Fruit on erect nearly glabrous 



