CRATAEGUS IN MISSOURI. 93 



4. Crataegus calliantha, n, sp. 



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



ovate, acuminate, rounded or subcordate at the broad entire base, sharply 

 often doubly serrate above, with straight glandular teeth, and slightly 

 divided usually only above the middle into 3 or 4 pairs of small acuminate 

 spreading lobes; about half-grown when the flowers open in the last week 

 of April and then thin, dark yellow-green, smooth, lustrous and slightly 

 hairy on the upper side of the midribs and pale bluish green below, and at 

 maturity thick, yellow-green, smooth and lustrous on the upper surface, 

 paler on the lower surface, 4-5 cm. long and 3-3.5 cm. wide, with slender 

 midribs, and thin primary veins arching obliquely to the points of the lobes; 

 petioles slender, slightly wdng-margined at the apex, sparingly villose on the 

 upper side while young, soon glabrous, occasionally glandular, with minute 

 mostly deciduous glands, 2-2.5 cm. in length; leaves on vigorous shoots 

 broadly ovate, rounded or cordate at the base, often 6-7 cm. long and 

 6-6.5 cm. wide, with stout rose-colored midribs and more prominent veins. 

 Flow^ers 2.2-2.5 cm. in diameter, on slender pedicels, in compact mostly 

 5-7-flowered corymbs, with conspicuous oblong-obovate to linear glandu- 

 lar dark rose-colored bracts and bractlets persistent until the flowers ox)en, 

 the long lower peduncles from the axils of upper leaves; calyx- tube 

 narrowly obconic, the lobes gradually narrowed from the base, long, 

 broad, acuminate, coarsely glandular-serrate near the middle, reflexed 

 after anthcsis; stamens 20; anthers pale pink; styles 2-4, surrounded at 

 the base by a broad ring of pale tomentum. Fruit broader than high, 

 angled, pink, very pruinose, about 1 cm. in diameter; calyx prominent, 

 with a short tube, a broad deep cavity wide and tomentose in the bottom, 

 and small spreading lobes; flesh thin, pale yellow, dry and mealy; nutlets 

 usually 4, gradually narrowed and rounded at the ends, ridged on the 

 back, with a broad low shghtly grooved ridge, 6-7.5 mm. long, and 4-4.5 

 mm. wide. 



A shrub 1-1.5 dm. high, with small erect stems covered 

 with dark rough bark, and slender nearly straight branchlets 

 dark orange-green when they first appear, becoming light 

 orange-brown very lustrous and marked by numerous small 

 pale lenticels in their first season and dark chestnut-brown 

 and lustrous the following year, and armed with numerous 

 stout nearly straight dark chestnut-brown shining spines 3-4 

 cm. long. 



Limestone hills, AUenton, St. Louis County, and Paci- 

 fic, Franklin County, common; Swceney^s Hill, Allen- 

 ton, /. H. Kellogg (no number, flowers), April 25, 1905; 

 Pacific, J\ H. Kellogg, (No. 100, fruit), September 29, 

 1907. 



