'^ 



CRATAEGUS IN MISSOURI. 55 



narrowed and rounded at the ends, prominently ridged on the back, 

 with a broad high deeply grooved ridge, 8-8.5 mm. long, and 4.5-5 mm. 

 wide. 



A tree 5 or 6 m. high, with a tall trunk 1.5-2 dm. in diam- 

 eter, covered with pale gray scaly bark, small short spread- 

 ing branches forming a narrow round-topped head, and 

 slender nearly straight branchlets light orange-green and 

 marked by pale lenticels when they first appear, becoming 

 light reddish brown and lustrous in their first season and dull 

 red-brown the following year, and armed with many slender 

 slightly curved chestnut-brown spines 4-7 cm. long. 



Low moist soil, Osage, Cole County, J. H, Kellogg, (No. 7 

 tvue). Mav 5. 1905. Mav 6 and October 1, 1907. 



1 



15. Crataegus candens, n. sp. 



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

 oblong-obovate, acuminate or rarely rounded at the apex, gradually 

 narrowed to the long entire cuneate base, and finely serrate usually only 

 above the middle, with straight glandular teeth; tinged w^itli red when they 

 unfold, more than half grown when the flowers open the middle of May 

 and then thin, dark yellow-green, very lustrous and sparingly villose along 

 the midribs above and paler and glabrous below, and at maturity sub- 

 coriaceous, glabrous, dark green and lustrous on the upper surface, pale 

 bluish green on the lower surface, 4.5-6 cm. long and 2.5-3.5 cm. wide, 

 with thin midribs, and slender primary veins within the parenchyma; 



petioles 



nearly to the base, occasionally 



glandular, with minute deciduous glands, 7-8 mm. in length; leaves on 

 vigorous shoots thicker, more coarsely serrate, and often 7-8 cm. long and 

 3.5-4 cm. wide, with stout midribs and prominent primary veins. Flowers 

 1.2-1.4 cm. in diameter, on long slender pedicels, in wndc lax mostly 

 12-16-flowered corymbs, the elongated lower peduncles from the axils of 

 upper leaves; calyx-tube narrowly obconic, the lobes gradually narrowed 

 from the base, long, slender, acuminate and glandular at the apex, entire 

 or occasionally dentate below the middle, reflexed after anthesis; stamens 

 5-8, usually 5 or 6; anthers pale yellow; styles 1 or 2. Fruit ripening 

 early in October, on slender drooping pedicels, in few-fruited clusters, and 

 usually persistent longer than the leaves, short-oblong, full and rounded 

 at the ends, dark red, marked by numerous large pale dots, 1.2-1,5 cm. 

 long and 1-1.2 cm. in diameter; calyx little enlarged, with a narrow 

 deep cavity, and small spreading appressed lobes; flesh thin, green, dry 

 and hard; nutlets 1 or 2, slightly narrowed and rounded at the apex, 

 obtuse and rounded at the base, ridged on the back, with a broad low 

 slightly grooved ridge, 7-8 mm. long, and 4-4.5 mm. wide, or when 1, 

 6-6.5 mm. in diameter. 



t 



