206 PROCEEDINGS OF THE ACADEMY OF [March, 



19. Crataegus ruricola n. sp. 



Glabrous with the exception of the hail's on the upper surface 

 of the young leaves. Leaves broad-ovate, acuminate, gradually 

 narrowed and rounded or cuneate at the often unsymmetrical base, 

 coarsely often doubly serrate, with straight glandular teeth, and deeply 

 divided into 4 or 5 pairs of narrow acuminate spreading often recurved 

 lobes; tinged with red when they unfold, about one-third grown when 

 the flowers open early in May and then thin, yellow-green and rough- 

 ened above by short white hairs, and at maturity thin, dark yellow- 

 green and scabrate on the upper surface, paler on the lower surface, 

 5-8 cm. long and 3.5-6 cm. wide, with thin midribs and primary veins; 

 petioles slender, slightly wing-margined at the apex, 2.5-4 cm. in 

 length. Flowers on short stout pedicels, in small compact 4-8-, 

 usually 4 or 5-flowered corymbs, the lower peduncles from the axils 

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

 narrowed from the base, long, slender, acuminate, entire or minutely 

 dentate near the middle, reflexed after anthesis; stamens 8-10; anthers 

 pale pink; styles 3 or 4. Fruit ripening and falling early in October, 

 on long slender pedicels, in few-fruited drooping clusters, obovate, 

 full and rounded at the apex, gradually narrowed to the rounded 

 base, scarlet, about 1.5 cm. long and broad; calyx little enlarged, with 

 a short tube, a deep narrow cavity, and spreading lobes; flesh yellow, 

 juicy; nutlets 3 or 4, broad and rounded at the apex, narrowed and 

 acute at the base, ridged on the back, with a broad groove ridpe, 

 5.5-6 mm. long and about 4 mm. wide. 



A shrub 1.2-1.5 m. high, with small stems, and slender zigzag branch- 

 lets dark orange-green when they first appear, becoming light orange- 

 brown, lustrous and marked by dark lenticels in their first season, 

 and armed with numerous stout or slender straight or slightly curved 

 chestnut brown spines 3.5-5 cm. long. 



Chadsford, Delaware County, B. H. Smith and C. S. Sargent, (No. 

 250 type) October 3, 1904, B. H. Smith, May 6 and September 13, 1905, 

 October 8, 1908. 



20. Crataegus effera n. sp. 



Glabrous with the exception of the hairs on the upper surface 

 of the leaves. Leaves broad-ovate, acute or acuminate, rounded 

 or abruptly cuneate at the wide base, finely often doubly serrate, 

 with straight glandular teeth, and divided usually only above the 

 middle into 3 or 4 pairs of short broad lobes ; nearly half-grown when 

 the flowers open late in May and then yellow-green and roughened 

 above by short white hairs and glabrous below, and at maturity thick, 



