120 NEW YORK STATE MUSEUM 



A shrub sometimes 6 m high, with small stems covered with pale 

 gray bark, ascending and drooping tortuons branches, and slender 

 branchlets deeply tinged with red and marked by pale lenticels 

 when they first appear, becoming dark chestnut-brown and lustrous 

 in their first season and dark dull gray-brown the following year, 

 and armed with stout slightly curved or straight dull chestnut-brown 

 spines 2.5-3 ^^ lo^g- 



Thickets in moist soil, near the eastern bank of Hemlock lake, 

 Livingston co., New York, Henry T. Brown (;^2i, type). May 28 

 and October 4, 1906. 



Crataegus claytoniana n. sp. 



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

 Leaves oblong-ovate, acuminate, rounded or abruptly cuneate at the 

 base, finely often doubly serrate above, with straight or incurved 

 glandular teeth, and divided into 4 or 5 pairs of slender spreading 

 acuminate lateral lobes; bronze-red and covered above by short 

 white hairs when they unfold, more than half grown when the 

 flowers open about the loth of June and then thin, light yellow- 

 green and still hairy above and pale and glabrous below, and at 

 maturity thin, dark yellow-green and slightly roughened on the 

 upper surface, light yellow-green on the lower surface, 3-4.5 cm 

 long and 2.5-3 ^"^ wide, with thin midribs and primary veins; 

 petioles slender, slightly wing-margined at the apex, glandular, with 

 occasional persistent glands, 1.5-2.5 cm in length; leaves on vigor- 

 ous shoots thicker, long-pointed, rounded or truncate at the broad 

 base, more coarsely serrate and more deeply lobed, and often 5-6 

 cm long and 4-5 cm wide, with stout rose colored midribs, and con- 

 spicuously glandular petioles. Flowers 1-1.2 cm in diameter, on 

 slender pedicels, in small lax 5-10-flowered corymbs, the lower 

 peduncles from the axils of upper leaves; calyx-tube narrowly 

 obconic, the lobes slender, acuminate and red at the apex, entire 

 or occasionally minutely glandular dentate, reflexed after anthesis; 

 stamens 5-8; anthers red; styles 2 or 3. Fruit ripening the end 

 of September, on short drooping pedicels, in 1-3-fruited clusters, 

 subglobose to short-oblong, scarlet, lustrous, 1-1.2 cm long, about 

 I cm' in diameter ; calyx little enlarged, with a wide shallow cavity, 

 and spreading mostly persistent lobes bright red on the upper side 

 below the middle; flesh thick, rather juicy, yellow slightly tinged 

 with red ; nutlets 2 or 3, narrowed and rounded at the ends, ridged 



