1905.] NATURAL SCIENCES OF PHILADELPHIA. 593 



Flowers 1.6-1.7 cm. in diameter, on long densely villose pedicels, in 

 compact 4-6-flowered hairy corymbs, with linear glandular caducous 

 bracts and bractlets; calyx-tube narrowly obconic, glabrous, the lobes 

 elongated, acuminate, entire or sparingly serrate above the middle; 

 stamens 20; anthers pale pink; styles 3-5, surrounded at the base by a 

 narrow ring of pale hairs. Fruit ripening the middle of October, on 

 slender pedicels, in drooping few-fruited clusters, depressed globose, 

 bright green and lustrous until late in the season, finally becoming 

 light cherry red, about 1.6 cm. in diameter and 1.1 cm. in height; calyx 

 little enlarged, without a tube and with a deep narrow cavity and 

 spreading lobes mostly persistent on the ripe fruit; flesh firm, white or 

 yellow; nutlets usually 3 or 4, full and rounded or acute at the apex, 

 broadly ridged on the back, with a high usually grooved ridge, about 

 6 mm. long and 4 mm. wide. 



A broad shrub 3-4 m. high, with numerous stems, and slender zigzag 

 branchlets marked by small pale lenticels, light reddish-brown and 

 pubescent when they first appear, soon glabrous, light reddish-brown 

 and lustrous during their first winter and darker and purplish the fol- 

 lowing year, and armed with numerous slender straight slightly curved 

 purple spines 4-5 cm. in length. 



Philadelphia covmty: Below Gray's Ferry, and Angora, B. H. Smith 

 (No. 241, type!), November 19, 1902, May, 1904. 

 10. Crataegus jejuna n. sp. 



Leaves ovate to oval, acuminate, abruptly or acutely concave-cuneate 

 or rounded at the entire base, finely doubly serrate above, with straight 

 glandular teeth, and slightly divided into numerous short acute lateral 

 lobes, half-grown when the flowers open about the 25th of May and then 

 membranaceous, yellow-green and glabrous with the exception of a few 

 caducous hairs along the upper side of the midribs, and at maturity 

 subcoriaceous to coriaceous, dark blue-green and smooth on the upper, 

 paler on the lower surface, 4.5-5.5 cm. long and 3-4 cm. wide, with 

 stout midribs deeply impressed on the upper side and 4 or 5 pairs of 

 slender primary veins arching obliciuely to the points of the larger lobes ; 

 petioles sparingly villose at first, soon glabrous, stout, grooved on the 

 upper side, slightly wing-margined at the apex, and 2.5-3 cm. long; 

 leaves on vigorous shoots mostly truncate at the broad base, more 

 coarsely serrate and more deeply lobed, often 5 cm. long and broad, 

 with stout conspicuously glandular petioles. Floivers about 1.6 cm. 

 in diameter, on long slender pedicels, in compact usually 5-7-flowered 

 corymbs, with linear glandular bracts and bractlets often deciduous 

 before the flowers open; calyx-tube broadly obconic, the lobes wide, 

 39 



