1905.] NATURAL SCIENCES OF PHILADELPHIA. 637 



with large laciniate glandular-viscid reddish bracts and bractlets per- 

 sistent until the flowers open; calyx-tube broadly obconic, slightly 

 hairy toward the base, the lobes wide, acuminate, laciniately divided 

 and glandular above the middle, glabrous on the outer and villose on 

 the inner surface; stamens 10; anthers light yellow; styles 3 or 4, sur- 

 rounded at the base by a narrow ring of long white hairs. Fruit ripen- 

 ing about the middle of September and remaining on the branches until 

 after the leaves have fallen, on short stout slightly villose pedicels, in 

 erect or spreading few-fruited clusters, subglobose, often slightly longer 

 than wide, greenish-orange and about 1.5 cm. in diameter; calyx en- 

 larged, with a broad shallow cavity, and foliaceous coarsely serrate 

 lobes conspicuous on the half-grown fruit but mostly deciduous before 

 its maturity; flesh thin, hard and green; nutlets usually 3, full and 

 rounded at the ends, ridged on the back with a broad high deeply 

 grooved ridge, reddish-brown, about 7 cm. long and 5 cm. wide. 



A shrub 1-2 m. high, spreading into broad thickets, with slender 

 slightly zigzag branchlets marked by occasional oblong pale lenticels 

 light orange color and slightly villose when they first appear, bright 

 chestnut-brown or purplish and very lustrous during their first winter 

 and dark dull brown tinged with red the following year, and armed with 

 numerous slender nearly straight purplish or red-brown shining spines 

 2.5-5 cm. long. 



Bucks county: Roadside at Pleasant Spring bridge, Hilltop near 

 Sellersville, C. D. Fretz (No. 108, type!), June and October, 1899, and 

 1901 ; near Perkasie, C. D. Fretz (No. 157), June and October, 1901. 

 3. Crataegus bartoniana n. sp. 



Leaves ovate to oval, acute, concave-cuneate at the glandular base, 

 coarsely doubly serrate above, with straight glandular teeth, and 

 deeply divided above the middle into 3 or 4 pairs of broad acute or 

 acuminate lobes, nearly fully grown when the flowers open during the 

 last week in May and then membranaceous, light yellow-green and 

 roughened above by minute short white hairs and pale and glabrous 

 below, and at maturity thick and firm in texture, dark bluish-green and 

 scabrate on the upper and pale on the lower surface, 5-6.5 cm. long and 

 3.5-5 cm. wide, with stout midribs and thin primary veins arching 

 obliquely to the points of the lobes, turning dull orange-red in the 

 autumn before falling; petioles slender, grooved on the upper side, 

 more or less wing-margined toward the apex, glandular while young, 

 with mostly deciduous glands, reddish in the autumn, and 1.5-2 cm. 

 in length; stipules linear, acuminate, glandular, generally deciduous 

 before the flowers open ; leaves on vigorous shoots broadly ovate, some- 



