234 PROCEEDINGS OF THE ACADEMY OF [March, 



light chestnut brown and lustrous in their first season and dull gray- 

 brown the following year, and armed with numerous slender straight 

 chestnut brown spines 3.5-5 cm. long and often pointing toward the 

 base of the branch. 



Preston Run Barrens, Newtown, Delaware County, B. H. Smith, 

 (No 246 type) May 27 and September 28, 1904, May 19 and September 

 29, 1909. " 



5. Crataegus Kinzeras n. sp. 



Glabrous. Leaves oblong-ovate, acuminate, gradually or abruptly 

 narrowed to the cuneate base, sharply often doubly serrate, with 

 straight glandular teeth, and deeply divided into 4 or 5 pairs of narrow 

 acuminate spreading lateral lobes ; about half-grown when the flowers 

 open in the first week of June and then very thin, yellow-green and 

 smooth above, paler below, and at maturity thin, dark yellow-green 

 and lustrous on the upper surface, pale on the lower surface, 3.5-5 cm. 

 long and 2.5-3.5 cm. wide, with slender midribs and primary veins; 

 petioles slender, slightly wing-margined at the apex, glandular, with 

 minute persistent glands, 1.2 cm. in length; leaves on vigorous shoots 

 thin, rounded or abruptly cuneate at the broad base, more coarsely 

 serrate, deeply lobed, and often 7-8 cm. long and 5-6 cm. wide. Flowers 

 1.5-1.8 cm. in diameter, on long slender pedicels, in small rather lax 

 mostly 5-7-flowered corymbs, with conspicuous oblong-obovate to 

 linear glandular-serrate bracts and bractlets fading brown and per- 

 sistent until the petals have fallen, the long lower peduncles from the 

 axils of upper leaves ; calyx-tube narrowly obconic, the lobes gradually 

 narrowed from the base, short, slender, acuminate, laciniateby glandu- 

 lar-serrate above the middle, reflexed after anthesis; stamens 8-10, 

 usually 10; anthers large, creamy white; styles 2-4, usually 3, sur- 

 rounded at the base by a narrow ring of short white hairs. Fruit 

 ripening and falling early in October, on slender erect or spreading 

 pedicels, in few-fruited clusters, oblong-obovate, full and rounded 

 at the apex, gradually narrowed to the long slender base, russet-green 

 to russet-orange with a dark red cheek, 1.2-1.4 cm. long and 1-1.2 

 cm. in diameter; calyx little enlarged, with a wide shallow cavity 

 hairy in the bottom, and small spreading and appressed persistent 

 lobes; flesh thin, hard, becoming succulent when fully ripe, light 

 greenish yellow ; nutlets 2-4, usually 2 or 3, broad and rounded at the 

 ends, or, when 2, narrowed and rounded at the ends and rather broader 

 at the base than at the apex, ridged on the back, with a broad low 

 slightly grooved ridge, 6.5-7 mm. long and 4-4.5 mm. wide. 



An intricately branched shrub 2-3 m. high, with small spreading 



