1910.] NATURAL SCIENCES OF PHILADELPHIA. 181 



brown the following year, and armed with very numerous slender 

 straight or slightly curved chestnut brown shining spines 3.5-5 cm. 

 long. 



Edges of meadows in Edgmont Township, above Castle Rock, 

 Delaware County, B. H. Smith, (No. 239 type) May 20 and October 

 6, 1904, May 19, 1909. 

 18. Crataegus latifrons n. sp. 



Glabrous with the exception of the hairs on the young leaves 

 Leaves broadly ovate, acuminate, abruptly concave-cuneate or rounded 

 at the wide base, finely often doubly serrate, with straight glandular 

 teeth, and slightly divided above the middle into 3 or 4 pairs of small 

 acuminate spreading lobes; more than half-grown when the flowers 

 open the middle of May and then thin, yellow-green, smooth, lustrous 

 and glabrous above with the exception of a few hairs on the upper 

 side of the midribs near their base, and pale below, and at maturity 

 thin, dark yellow-green and lustrous on the upper surface, pale on the 

 lower surface, 4-5 cm. long and 3.5-5 cm. wide, with thin midribs 

 and primary veins; petioles slender, glandular, with persistent glands, 

 slightly hairy on the upper side while young, soon becoming glabrous, 

 2-3 cm. in length. Flowers 1.6 cm. in diameter, on long slender 

 pedicels, in small compact mostly 4-6-flowered corymbs, the long 

 lower peduncles from the axils of upper leaves; calyx-tube broadly 

 obconic, the lobes gradually narrowed from the base, short, slender, 

 acuminate, entire or minutely dentate, reflexed after anthesis; stamens 

 18-20; anthers cream color; styles 2-4, surrounded at the base by a 

 narrow ring of pale tomentum. Fruit ripening in October, on slender 

 drooping red pedicels, in few-fruited clusters, subglobose to short- 

 oblong, full and rounded at the ends, dark red blotched with green, 

 marked by large dark dots, 1.4-1.5 cm. in diameter; calyx prominent, 

 with a broad shallow cavity, and spreading persistent lobes dark red 

 on the upper side below the middle; nutlets 2-4, broad and rounded 

 at the base, gradually narrowed and acute or rounded at the apex, 

 ridged on the back, with a broad low grooved ridge 6.5-7 mm. long 

 and 4.5-5 mm. wide. 



A shrub 5-6 m. high, with stems sometimes 1.5-2 dm. in diameter, 

 stout straight branches, and slender slightly zigzag branchlets dark 

 orange-green tinged with red and marked by numerous pale lenticels 

 when they first appear, becoming light chestnut brown and lustrous 

 in their first season and dull reddish brown the following year, and 

 armed with few stout straight or slightly curved purple shining spines 

 2.5-3.5 cm. long. 



