1905.] NATURAL SCIENCES OF PHILADELPHIA. 639 



petioles stout, deeply grooved on the upper side, wing-margined some- 

 times nearly to the middle, glandular, 1.5-2 cm. in length; leaves on 

 vigorous shoots broadly ovate, full and rounded at the wide base, 

 coarsely serrate, more deeply lobed, 7-8 cm. long and 6-7 cm. wide, 

 with stout broadly winged conspicuously glandular petioles. Flowers 

 1.5-1.7 cm. in diameter, on slender glabrous pedicels, in few rarely 

 more than 5-flowered corymbs, with linear conspicuously glandular 

 bracts and bractlets, fading brown and mostly persistent until after 

 the petals have fallen; calyx-tube narrowly obconic, glabrous, the lobes 

 gradually narrowed from the base, acuminate, coarsely glandular- 

 serrate above the middle, glabrous on the outer and sparingly villose 

 on the inner surface near the apex; stamens 10; anthers pale yellow; 

 styles 5. Fruit ripening toward the middle of October and soon falling, 

 on long stout erect pedicels, globose to short-oblong, flattened at the 

 ends, somewhat angled, dull orange to reddish-orange color, marked by 

 numerous large dark dots 1.2-1.5 cm. in diameter; calyx only slightly 

 enlarged, with a narrow deep cavity and closely appressed lobes 

 coarsely glandular-serrate above the middle and mostly persistent on 

 the ripe fruit; flesh thick, green, dry and mealy; nutlets 5, full and 

 rounded at the base, narrow and rounded at the apex, ridged on the 

 back, with a broad high rounded ridge, about 7 mm. long and 5 mm. 

 wide. 



A shrub, with small spreading stems 1-3 m. high, and slender nearly 

 straight branchlets marked by numerous large pale lenticels, dark 

 orange color when they first appear and light reddish-brown during 

 their first year, later becoming dark gray-brown, and armed with slen- 

 der nearly straight bright purplish shining spines 2.5-4 cm. long. 



Monroe county: Hillside between Stroudsburg and Tannersville, 

 W. M. Canby, June 2, 1900; Canby and Sargent, October 12, 1900; 

 W. M. Canby, May 30, 1902. 

 5. Crataegus nemoralis Sargent. 



Bot. Gazette, XXXV, 104 (Crataegus in New Castle County, Delaware) (190.3). 



Leaves ovate to oval, acute, gradually or abruptly narrowed to the 

 cuneate entire base, sharply mostly doubly serrate above, with incurved 

 glandular teeth, and slightly divided above the middle into acute lobes, 

 tinged with red when they unfold, and covered with long pale caducous 

 hairs on the upper and pale blue-green and sparingly villose on the 

 lower surface, glabrous when the flowers open about the middle of May, 

 and at maturity thick and firm, dark yellow-green above, paler below, 

 4-5 cm. long and 3-4 cm. wide; petioles slender, slightly grooved, at 

 first villose-pubescent, soon glabrous, glandular, with small scattered 



