REPORT OF THE STATE BOTANIST I912 8I 



Crataegus pallescens n. sp. 



Glabrous with the exception of the hairs on the young leaves and 

 calyx-lobes. Leaves ovate, acuminate, rounded or .abruptly cuneate 

 at the broad base, sharply and often doubly serrate with straight 

 glandular teeth, and divided into five or six pairs of short acuminate 

 spreading lobes ; more than half-grown when the flowers open the 

 middle of June and then thin, yellow-green, and covered above by 

 short white hairs and glabrous and glaucescent below, and at matur- 

 ity thin, glabrous, dark yellow-green on the upper surface and pale 

 on the lower surface, 6.5 to 8.5 cm long and 6 to 8 cm wide, with 

 thick midribs and thin primary veins arching obliquely to the points 

 of the lobes ; petioles slender, broadly wing-margined at the apex, 

 glandular with conspicuous occasionally persistent glands, 2.5 to 3.5 

 cm in length ; stipules strap-shaped, acute, bright rose color, conspicu- 

 ously glandular, often persistent until the flowers open ; leaves on 

 vigorous shoots abruptly cuneate at the base, more coarsely ser- 

 rate and more deeply lobed, and sometimes 9 to 10 cm long and 

 broad. Flowers 2.5 cm in diameter on long slender pedicels, in 

 compact mostly ten- to fifteen-flowered corymbs, the lower peduncles 

 from the axils of upper leaves ; calyx-tube broadly obconic, the lobes 

 separated by wide sinuses, long, wide, acuminate, conspicuously 

 glandular-serrate, slightly villose on the inner surface, reflexed after 

 anthesis ; stamens ten ; anthers deep red ; styles four or five. Fruit 

 ripening early in October on drooping red pedicels, short-oblong, 

 rounded at the ends, cardinal-red, marked by occasional large pale 

 dots, pruinose, i to 1.2 cm in diameter; calyx prominent, with a 

 short tube, a wide, deep cavity pointed in the bottom, and spreading 

 prominent lobes ; flesh thin, yellow, dry and mealy ; nutlets four or 

 five, gradually narrowed to the ends," rather broader at the apex than 

 at the base, irregularly ridged on the back with a high narrow ridge, 

 7 to 8 mm long and 4 to 4.5 mm wide, the broad hypostyle extend- 

 ing one-third the length of the nutlet. 



An arborescent shrub 6 to 7 m tall, with stems sometimes 3 cm in 

 diameter at the base, covered with dull ashy gray bark, ascending 

 and spreading branches forming a thin open head, and stout slightly 

 zigzag branchlets dark orange-green and marked by pale lenticels 

 when they first appear, becoiiimg pale chestnut-brown and lustrous 

 at the end of their first season and armed with occasional stout 

 slightly curved chestnut-brown shining spines 4 to 5 cm long and 

 sometimes persistent and compound on old stems and branches. 



Open damp woods near Ogdensburg, John Dunbar (no. 45, 

 type), June 12 and September 28, 1907; June 5, 1908. 



