124 ROCHESTER ACADEMY OF SCIENCE. 



large, usually persistent until after the flowers open ; calyx-tube 

 narrowly obconic, bright red, like the slender elongated acuminate 

 entire or slightly serrate lobes, tipped with large dark red glands, 

 reflexed after anthesis ; stamens lo ; anthers small, dark rose color ; 

 styles 3 or 4. Fruit on elongated slender reddish pedicels, in few- 

 fruited drooping clusters, obovate, crimson, lustrous, marked by small 

 pale dots, usually i. 2-1.5 cm. long and 1.2 cm. wide; calyx promi- 

 nent, with a broad deep cavity and spreading entire or slightly serrate 

 lobes bright red on the upper side below the middle and usually 

 persistent on the ripe fruit ; flesh thin, yellow, soft and succulent ; 

 nutlets 3 or 4, broad, full and rounded at the apex, gradually narrowed 

 to the acute base, ridged on the back, with a high rounded ridge, 

 7 mm. long. 



A shrub 3 or 4 m. in height with numerous intricately branched 

 stems, branches furnished with many short spine-like lateral branch- 

 lets, the lower horizontal and spreading, the upper ascending, and 

 slender very zigzag terminal branchlets, bright red when they first 

 appear, red brown, lustrous and marked by numerous small pale 

 lenticels at the end of their first season and dark red-brown the follow- 

 ing year, and armed with numerous stout or slender straight or occa- 

 sionally slighdy curved dull chestnut-brown spines 3-3.5 cm. in length. 

 Flowers from the 20th to the end of May. Fruit ripens at the end of 

 September and falls gradually through October. 



Rochester ; common in the Genesee Valley, John Dunbar and 

 H. T Brozun, 1900, Jolvi Dunbar, May, September and October, 

 1901, C. S. Sargent, September, 1902 ; Murray, New York, M. S. 

 Baxter, October 11, 1902; Buffalo, October 6, 1902; Chippewa, 

 Ontario, October 7, 1902, John Dunbar, near Toronto, Ontario, 

 D. IV. Beadle, May 20, 1902. 



Crataegus Beckwithae, n. sp. 



Leaves ovate, acute or acuminate, rounded, truncate, rarely 

 cuneate, or on leading shoots subcordate at the wide entire or glandu- 

 lar base, sharply doubly serrate above, with gland-tipped teeth, and 

 slightly divided into 3 or 4 pairs of short acuminate lateral lobes ; 

 more than half grown when the flowers open and then membranaceous, 

 light yellow-green, roughened above by short white hairs and glabrous 

 below ; at maturity thin but firm in texture, dull dark bluish green, 

 glabrous and smooth on the upper surface, pale bluish green on the 

 lower surface, 4-6 cm. long and wide and often wider than long, 



