120 NEW YORK STATE MUSEUM 



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

 gray bark, ascending and drooping tortuous 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 ^^ long. 



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

 Livingston co., New York, Henry T. Brown {^21, 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 ^"^^ vvide, 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 



