638 PROCEEDINGS OF THE ACADEMY OF [Sept., 



times rounded or almost truncate at the broad Ijase, more deeply lobed 

 and more coarsely serrate and often 6 cm. long and wide, with stout 

 broad-winged petioles. Flowers 1.5-1.7 cm. in diameter, on stout 

 elongated glabrous pedicels, in 4-7-flowered simple corymbs, with large 

 oblong-obovate to lanceolate glandular bracts and bractlets persistent 

 until after the petals have fallen; calyx-tube broadly obconic, the 

 lobes slender, acuminate, separated by wide sinuses, minutely glandular- 

 serrate and reflexed after anthesis ; stamens 10; anthers yellow; styles 

 3 or 4. Fruit ripening early in October, on stout elongated erect pedi- 

 cels, solitary or in few-fruited clusters, subglobose to short-oblong, full 

 and rounded at the ends, dark crimson often blotched with green, 1-1.2 

 cm. in diameter; calyx little enlarged, with a wide deep cavity, and 

 spreading appressed lobes mostly persistent on the ripe fruit; flesh thin, 

 green, dry and mealy; nutlets 3 or 4, full and rounded at the ends, 

 ridged on the back, with a broad often doubly grooved ridge, about 

 7 mm. long and 4-5 mm, wide. 



A shrub 1.5-2 m. high and rather broader than high, with stout 

 intricately branched stems, and slender nearly straight branchlets dark 

 orange color when they first appear, and dark reddish-brown or pur- 

 plish and lustrous during their first winter, becoming dark red-brown 

 the following year, and armed with stout straight purplish spines 

 3-4 cm. in length. 



Philadelphia county: Gray's Ferry, on the Schuylkill river, B. H. 

 Smith (No. 242, type!). May, 1904; Smith and Sargent, October 5, 1904; 

 slope to the Schuylkill river, West Fairmount Park, Smith and Sargent, 

 October, 1904. 



This species is named in memory of Benjamin Smith Barton (1776- 

 1815), and of his nephew, W. P. C. Barton (1786-1856), distinguished 

 Philadelphia botanists. 

 4. Crataegus neo-canbyi n. sp. 



Leaves oval to ovate, acute or acuminate, concave-cuneate at the 

 ent.re or glandular base, finely often doubly serrate above, with in- 

 curved or straight gland-tipped teeth, and slightly divided above the 

 middle into 2 or 3 pairs of short broad acute lobes, about half-grown 

 when the flowers open during the last week of May and then membrana- 

 ceous, glabrous with the exception of a few short hairs on the upper side 

 of the midiibs, light yellow-green and very smooth above and pale 

 below, and at maturity thick to subcoriaceous, glabrous, dark yellow- 

 green on the upper and pale or glaucous on the lower surface, 6-7 cm. 

 long and 4-5 cm. wide, with stout orange-colored midribs and slender 

 p}-iinary veins, turning deep orange color in the autumn before falling; 



