124 NEW YORK STATE MUSEUM 



Spreading often deciduous lobes ; flesh thin, yellow ; nutlets usually 

 3, acute at the base, thicker and rounded at the apex, ridged on the 

 back, with a low doubly grooved ridge, 6.5-7 """" lo"g' and 3.5-4 

 mm wide. 



A shrub or small tree 2-4 m high, with a stem sometimes 5 dm 

 in diameter and like the long slender mostly erect branches covered 

 with dark brown verrucose bark, and slender glabrous branchlets 

 yellow-green and marked by pale lenticels when they first appear, 

 becoming light chestnut-brown and lustrous in their first season 

 and dark red-brown the following year, and armed with numerous 

 slout straight light chestnut-brown shining spines 3.5-4 cm long. 



Adirondack region, common; C. H. Peck (;^ifc, type), June 18 

 and October i, 1907. 



Related to Crataegus praecoqua Sargent, Crataegus 

 verru calls may be distinguished from that species by its smaller 

 leaves and flower clusters, fewer stamens and styles, by its smaller 

 and late hanging fruit, and by the peculiar wartlike excrescences on 

 the bark. 



Crataegus harryi n. sp. 



Glabrous with the exception of the hairs on the upper surface of 

 the young leaves and on the calyx-lobes. Leaves obovate, gradually 

 narrowed and acute or acuminate at the apex, concave-cuneate at 

 the entire base, or occasionally oval and acuminate at the ends, 

 sharply doubly serrate, with straight glandular teeth, and divided 

 above the middle into numerous short slender acuminate lobes ; 

 nearly fully grown when the flowers open the last of May and 

 then very thin, dark yellow-green and covered above by soft white 

 hairs and paler below, and at maturity thin, dull light yellow-green 

 and scabrate on the upper surface and yellow-green and lustrous 

 on the lower surface, 6-7 cm long and 4-4.5 cm wide, with slender 

 yellow midribs and primary veins ; petioles slender, slightly wing- 

 margined at the apex, 1.5-3 cm in length; leaves on vigorous shoots 

 thicker, deeply lobed, more coarsely serrate, and often 12-14 cm 

 long and 8-9 cm wide. Flowers 1.3-1.5 cm in diameter, on slender 

 pedicels, in wide mostly 7-15-flowered corymbs, the long lower 

 peduncles from the axils of upper leaves ; calyx-tube very narrow, 

 obconic, the lobes long, slender, acuminate, minutely glandular 

 dentate, glabrous on the outer, villose on the inner surface, reflexed 

 after anthesis ; stamens 5 or 6 ; anthers pink ; styles 2-4. Fruit 

 ripening and falling early in October, on slender reddish pedicels, 

 in few-fruited spreading clusters, short-oblong to slightly obovate, 



