122 NEW YORK STATE MUSEUM 



yellow ; nutlets 4 or 5, gradually narrowed and rounded at the base, 

 thicker and rounded at the apex, ridged on the back, with a broad 

 low deeply grooved ridge, 7-9 mm long, and 3.5-4 mm wide. 



An arborescent shrub or tree 7-8 m high, with stout slightly 

 zigzag glabrous branchlets, dark green and marked by pale lenticels 

 when they first appear, becoming orange-brown or chestnut-brown 

 in their first season and dull gray-brown the following year, and 

 armed with very numerous stout straight or slightly curved light 

 chestnut-brown shining spines 4-7 cm long. 



Near Chateaugay lake, Franklin co., J. G. Jack (;^i, type), Sep- 

 tember 15, 1903, June 8, 1905. 



Crataegus spissa n. sp. 



Leaves ovate, acuminate, gradually narrowed and concave-cuneate 

 at the entire base, sharply doubly serrate above, with straight glandu- 

 lar teeth, and divided usually only above the middle into 4 or 5 

 pairs of small acuminate lobes ; tinged with red and covered with 

 long white hairs when they unfold, nearly half grown when the 

 flowers open at the end of May and then thin, yellow-green and 

 roughened above by short hairs and paler and glabrous below, and 

 at maturity thin, dark yellow-green, smooth, glabrous and lustrous 

 on the upper surface, pale yellow-green on the lower surface, 4-5 

 cm long and 3.-4 cm wide, with slender yellow midribs, and thin 

 primary veins arching obliquely to the points of the lobes; petioles 

 slender, wing-margined at the apex, sparingly villose on the upper 

 side while young, soon becoming glabrous, glandular with often 

 persistent glands, 1.2-2 cm in length; leaves on vigorous shoots 

 thicker, often rounded or truncate at the broad base, more coarsely 

 serrate and more deeply lobed, 7-9 cm long and 7-8 cm wide, with 

 broadly winged glandular petioles. Flowers 1.2-1.3 cm in diameter, 

 on short glabrous. or slightly hairy pedicels, in small very com.pact 

 5-10-flowered corymbs, the lower peduncles from the axils of upper 

 leaves; calyx-tube narrowly obconic, glabrous, the lobes gradually 

 narrowed from broad bases, acuminate, glandular dentate usually 

 only above the middle, glabrous on the outer, villose on the inner 

 surface, reflexed after anthesis ; stamens 10; anthers pink or pur- 

 plish red ; styles 3 or 4, surrounded at the base by a narrow ring of 

 pale tomentum. Fruit ripening the middle of September, on short 

 drooping pedicels, in few-fruited clusters, subglobose to oval, scarlet, 

 lustrous, marked by small pale dots ; calyx little enlarged, with a 

 wide shallow cavity, and small spreading serrate lobes, their tips 



