1905.] NATURAL SCIENCES OF PHILADELPHIA. 625 



pale lenticels, light red-brown and slightly puberulous when they first 

 appear, soon glabrous, dark red-brown and rather lustrous during their 

 first winter and light gray-brown the following season, and armed with 

 slender slightly curved red-brown lustrous spines often 4 cm. long on 

 young branches, and on old stems very stout, gray-brown and frequently 

 not more than 3 cm. in length. 



Bucks county: Meadow^s near the brook, in low moist soil, at 

 Pleasant Spring, Hilltop near Sellersville, Fretz and Sargent (No. 109, 

 type!) September, 1899; C. D. Fretz, May, 1900. Rare. 

 18. Crataegus vittata Ashe. 



Jour. Elisha Mitchell Sci. Soc, Vol. XX, p. 50, 1904. 



Leaves ovate to oblong-ovate, acuminate and often long-pointed at 

 the apex, rounded, truncate or rarely cuneate at the broad entire or 

 crenate base, sharply double serrate above, with straight glandular 

 teeth, and more or less divided into 3 or 4 pairs of broad acuminate 

 lobes ; nearly half-grown when the flowers open during the first week 

 of May and then membranaceous, light yellow-green and glabrous or 

 sparingly villose especially on the midribs above, pale and glabrous 

 below, and at maturity thin, dark yellow-green and lustrous on the 

 upper, pale on the lower surface, 7-8 cm. long and 5.5-6.5 cm. wide, 

 with stout midribs, and conspicuous primary veins arching obliquely 

 to the points of the lobes ; petioles stout, furnished with occasional dark 

 glands, glabrous, and 3-4 cm. in length; stipules lanceolate sometimes 

 falcate, glandular, caducous. Flowers 1.5-2 cm. in diameter, on stout 

 elongated glabrous pedicels, in broad lax, usually 7-r2-flowered 

 corymbs, with linear glandular caducous bracts and bractlets; calyx- 

 tube broadly ol)conic, the lobes short, slender, entire or sinuate-toothed 

 near the middle, reflexed after anthesis; stamens 5-10, generally 8-10; 

 anthers reddish-purple; styles 3-5, mostly 3 or 4, surrounded at the 

 base by a ring of long white hairs. Fruit ripening early in September 

 and falling gradually before the leaves, on elongated pedicels, in droop- 

 ing few-fruited clusters, depressed-globose to short-oblong, scarlet, usu- 

 ally blotched with green, covered with a slight glaucous bloom, 1.3-1.5 

 cm. in diameter; calyx enlarged, with a broad shallow cavity, and 

 spreading lobes mostly deciduous from the ripe fruit; flesh thick and 

 pulpy, acid, yellow-orange, sweetish; nutlets 3 or 4, narrowed and 

 rounded at the base, acute at the apex, prominently ridged on the 

 back, with a high grooved ridge, 6-7 mm. long and 4 mm. wide. 



A tree-like shrub 2-3 m. high, with a short stem covered with dark 

 gray scaly bark, small branches forming a broad round-topped head, 

 and stout nearly straight branchlets marked by small pale lenticels, 

 41 



