168 PROCEEDINGS OF THE ACADEMY OF [March, 



5, rounded at the apex, sometimes narrowed at the base, slightly 

 ridged on the back, about 5 mm. long and 3-3.5 mm. wide. 



A tree 3-4 m. high, with a trunk 1.7-2 dm. in diameter, covered 

 with dark scaly bark, long yellowish green smooth branches wide- 

 spreading below, ascending near the top of the tree, and forming a 

 round-topped head, and stout only slightly zigzag branchlets, dark 

 orange-green when they first appear, becoming dull orange-brown and 

 marked by dull lenticels in their first season and dark red-brown the 

 following year, and armed with numerous stout curved and reflexed 

 purple shining spines 4.5-5 cm. long and occasionally persistent and 

 branched on old stems. 



Forbes and Woodlawn Streets, Pittsburg, Allegheny County, O. E. 

 Jennings, (No. 96 type tree = J. A. Shafer, No. 5) June 10 and October 

 3,1908, May 9, 1909; Schenley Park, Pittsburg, Allegheny County, 

 O. E. Jennings, (No. 55) May 29, 1907, O. E. Jennings and B. H. 

 •Smith, October 5, 1907. 

 3. Crataegus wilmorensis n. sp. 



Glabrous with the exception of a few hairs on the young leaves 

 and petioles. Leaves ovate to oval, acuminate, concave-cuneate at 

 the often unsymmetrical entire base, sharply often doubly serrate 

 above, with straight glandular teeth, and usually slightly divided 

 into 3 or 4 pairs of small acuminate spreading lobes; nearly fully 

 grown when the flowers open at the end of May and then very thin, 

 light yellow-green, lustrous and slightly hairy on the midribs above 

 and pale and glabrous below, and at maturity thin, dark bluish green 

 on the upper surface, light bluish green on the lower surface, 4-5 cm. 

 long and 3-4 cm. wide, with thin midribs and primary veins ; petioles 

 slender, sparingly hairy on the upper side while young, soon glabrous, 

 1.5-2.5 cm. in length. Flowers on slender pedicels, in compact mostly 

 7-9-flowered corymbs, with linear-obovate to linear finely glandular- 

 serrate bracts and bractlets often persistent until the flowers open, the 

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

 obconic, the lobes long, slender, acuminate, entire or minutely glandular- 

 dentate, reflexed after anthesis ; stamens 20 ; anthers rose-color (in the 

 bud) ; styles 5. Fruit ripening early in October, on short stout spreading 

 pedicels, in few-fruited clusters, subglobose to short-oblong, full and 

 rounded at the ends, green becoming reddish at maturity, about 1.2 

 cm. in diameter ; calyx little enlarged, with a short tube, and reflexed 

 and appressed persistent lobes dark red on the upper side; flesh thin, 

 green and hard; nutlets 5, gradually narrowed and acute or rounded 

 at the ends, often rather broader at the base than at the apex, ridged 



