1910.] NATURAL SCIENCES OF PHILADELPHIA. 241 



entire or glandular-serrate near the apex, glabrous on the outer sur- 

 face, furnished on the inner surface with a few pale hairs, reflexed 

 after anthesis; stamens 6-10; anthers light pink; styles 3. Fruit 

 ripening early in October, on short stout erect pedicels, in few-fruited 

 clusters, subglobose to slightly obovate, light canary yellow, 1-1.2 cm. 

 long, 8-10 mm. in diameter, calyx little enlarged, with a short tube, 

 a deep narrow cavity, and deciduous lobes; flesh green, dry and hard; 

 nutlets 3, rounded at the ends, slightly ridged on the back, about 

 6 mm. long and 3.5-4 mm. wide. 



A shrub 2-3 m. high, with small spreading stems covered with 

 dark gray bark scaly near the ground, small spreading branches, and 

 slender nearly straight branchlets dark orange-green and marked by 

 pale lenticels when they first appear, becoming bright chestnut brown 

 and lustrous in their first season and dull red-brown the following 

 year, and armed with slender straight chestnut brown shining spines 

 1.5-2.5 cm. long. 



Hillsides, very common; Orbisonia, Huntingdon County, B. H. 

 Smith, (No. 304 type) May 19 and 20, 1906, October 8, 1907. 



14. Crataegus Jenningsii n. sp. 



Glabrous. Leaves ovate, acute or aguminate, gradually or abruptly 

 narrowed and concave-cuneate, or broad and rounded at the base» 

 coarsely often doubly serrate, with short glandular teeth, and slightly 

 divided into 4 or 5 pairs of short acuminate lateral lobes ; about one- 

 third grown when the flowers open late in May and then very thin, light 

 yellow-green and smooth above and pale bluish green below, and 

 at maturity thick, dark blue-green and lustrous on the upper surface, 

 paler on the lower surface, 5-7 cm. long and 4.5-5 cm. wide, with 

 stout midribs, and thin primary veins arching obliquely to the 

 points of the lobes; petioles slender, narrowly wing-margined to 

 below the middle, glandular with persistent glands, often rose color 

 in the autumn, 1.5-2 cm. in length; leaves on vigorous shoots usually 

 concave-cuneate at the broad base, coarsely serrate and often 8-9 cm. 

 long and 7-8 cm. wide, with prominent midribs and primary veins and 

 stout rose-colored conspicuously glandular petioles. Flowers 1.8-2 

 cm. in diameter, on long slender pedicels, in small mostly 5-9-flowered 

 corymbs, with small linear-obovate to linear glandular bracts and 

 bractlets fading brown and generally deciduous before the petals 

 fall, the lower peduncles from the axils of upper leaves; calyx-tube 

 narrowly obconic, the lobes gradually narrowed from the base, slender, 

 coarsely glandular-serrate at the acuminate apex, reflexed after 

 16 



