68 NEW YORK STATE MUSEUM 



tending obliquely to the points of the lobes; petioles slender, 

 narrowly wing-margined at the apex, slightly hairy on the upper side 

 while young, soon glabrous, occasionally minutely glandular, 1.5-2.5 



j cm in length ; leaves on vigorous shoots more deeply lobed and often 



8-9 cm long and 6-6.5 ^^^^ wide. Flowers 1.8 cm in diameter, on 



j long slender slightly hairy pedicels, in mostly 8-io-flowered compact 



thin-branched corymbs, the lower peduncles from the axils of upper 

 leaves; calyx-tube narrowly obconic, glabrous, the lobes slender, 

 elongated, minutely glandular-dentate, glabrous on the outer, pubes- 

 cent on the inner surface, reflexed after anthesis; stamens 20-25; 

 anthers red; styles 2-4, surrounded at the base by a narrow ring of 

 pale tomentum. Fruit ripening the end of September, on stout 

 nearly glabrous reddish pedicels, in few-fruited drooping clusters, 

 short-oblong, full and rounded at the ends, crimson, lustrous, marked 

 by large pale dots, 1-1.2 cm long and 8-10 mm wide; calyx little 

 enlarged, with a deep narrow cavity, and spreading reflexed lobes 



I red below the middle on the upper side and often deciduous from the 



ripe fruit; flesh thick, yellow, sweet and succulent; nutlets 2, nar- 

 rowed and rounded at the ends or acute at the apex, ridged on the 

 back, with a high often doubly grooved ridge, about 7 mm long, and 

 4 mm wide. 



An arborescent shrub 5-7 m high, with widespreading stems 

 often 2 dm in diameter and i m long covered with gray scaly bark, 

 small drooping- branches, forming a wide irregular open head, and 

 slender zigzag glabrous branchlets dark orange-yellow and marked 

 by pale lenticels when they first appear, becoming light chestnut- 

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

 the following year, and armed with few slender slightly curved chest- 

 nut-brown shining spines 3-4 cm long. 



In the dense shade of thick woods, Hagaman's swamp near Roch- 

 ester, J. Dunbar (-^QQ), October 12, 1901, September 26, 1903, 

 May 19 and September 26, 1902. 



Crataegus letchworthiana n. sp. 



Leaves ovate, acute or acuminate, concave-cuneate or rounded at 

 the broad entire base, finely doubly serrate above, with straight 

 glandular teeth, and slightly divided usually only above the middle 

 into 3 or 4 pairs of small spreading acuminate lobes ; slightly tinged 

 with red when they unfold, nearly half grown when the flowers 

 open at the end of May and then thin, yellow-green and covered 

 above by soft white hairs and pale and slightly villose along the 

 midribs and veins below, and at maturity thin but firm in texture, 



I 



