1905.] NATURAL SCIENCES OF PHILADELPHIA. 657 



lets 2, rounded and obtuse at the ends, obscurely ridged on the broad 

 rounded back, penetrated on the inner face by wide grooves, 5-6 mm. 

 long and about 4 mm. wide. 



A tree 5-6 m. high, with a tall slender stem covered with dark gray 

 scaly bark, spreading or ascending branches forming a broad round- 

 topped head, and slender nearly straight branchlets marked by many 

 large pale lenticels, dark orange color and hoary-tomentose when they 

 first appear, bright chestnut-brown and puberulous during their first 

 winter and dark gray-brown the following year, and sparingly armed 

 with slender dark gray spines 2-5 cm. long, becoming elongated and 

 much-branched on old stems and branches. 



Berks county: Banks of Sacony Creek, near Kutztown, C. L. Gruber 

 (No. 24), June and October, 1903. Bucks county: Near Sellersville, 

 C. D. Frctz (No. 21), June and October, 1903. 



3. Crataegus succulenta Link. 



Handb., II, 78 (1S31). Sargent, Silva N. Am., XIII, 139, t. 131: Man. 



497, f. 411. 



Berks county: Near Kutztown, C. L. Griiber (No. 166), May and 

 September, 1903. Bucks county: Near Sellersville, C. D. Freiz (Nos. 19 

 and 20), May, 1899, May and October, 1901. Delaware county: Crum 

 Creek, below Castle Rock Park, B. H. Smith (No. 190), May and July, 

 1900, September, 1903 ; Smith and Sargent, September, 1902. North- 

 ampton county: Easton, T. C. Porter, June, 1893. 



4. Crataegus radiosa n. sp. 



Leaves rhombic to obovate, acute, acuminate or rarely rounded at 

 the apex, gradually tapering and concave-cuneate at the entire base, 

 finely often doubly serrate above, with straight glandular teeth, and 

 divided above the middle into several short broad lobes, nearly fully 

 grown when the flowers open from the 15th to the 20th of Ma}^ and 

 then membranaceous, light yellow-green and sparingly villose along 

 the midribs and veins above, and pale and slightly hairy on the midribs 

 and in the axils of the primary veins below, and at maturity subcori- 

 aceous to coriaceous, dark green and lustrous on the upper and pale 

 and still hairy on the lower surface, 5-8 cm. long and 4-5 cm. wide; 

 petioles stout , wing-margined toward the apex, puberulous while young 

 along the deep groove on their upper side, without glands, 1-2.5 cm. 

 in length; stipules linear, acuminate, fading brown, caducous. Flow- 

 ers about 1.5 cm. in diameter, on slender elongated glabrous pedicels, 

 in wide many-flowered glabrous corymbs, with oblong-obovate to linear 

 serrate bracts and bractlets mostly deciduous before the flowers open; 

 calyic-tube narrowly obconic, the lobes foliaceous, acuminate, deeply 

 43 



