I 



\ 



CRATAEGUS IN MISSOUKI. 51 



entire or occasionally minutely dentate near the middle, glabrous on the 

 outer, sparingly villose on the inner surface, reflexed after anthesis; 

 stamens 10; anthers pale yellow; styles 2 or 3. Fruit ripening and falling 

 late in September, on slender drooping pedicels,, in few-fruited clusters, 

 Bubglobose to slightly obovate, dull red or bronze color, marked by small 

 pale dots, 1-1.2 cm. in diameter; calyx little enlarged, with a deep narrow 

 cavity tomentose in the bottom, and small spreading lobes mostly de- 

 ciduous from the ripe fruit; flesh thin, dry, green and hard; nutlets 

 2 or 3, gradually narrowed and rounded at the ends, irregularly ridged on 

 the back, with a liigh broadly grooved ridge, 7-7,5 mm. long, and about 

 4 mm. wide. 



A shrub 3 or 4 m 



and spreading branches 



forming a narrow open head, and slend 



more 



marked by pale Icnticels when they first appear, bccom 



and 



ig year, and armed with sto 

 curved, dark chestnut-brown 



3-4 



White Oak woods 



H 



H. Kellogg 



28, 1907. 



11. Crataegus efferta, n. sp. 



Glabrous witli the exception of the hairs on the upper surface of the young 

 leaves and on the calyx-lobes. Leaves oblong-obovate, acute or rounded 

 at the apex, gradually narrowed to the slender concave-cuneate entire base, 

 and finely serrate above the middle, with incurved glandular teeth; nearly 

 fully grown when the flowers open in the first week of May and then very 

 thin, dark yellow-green and slightly hairy on the midribs above and pale 

 bluish green below, and at maturity thick to subcoriaceous, dark yellow- 

 green and very lustrous on the upper surface and pale bluish green on the 

 lower surface, 4-5 cm. long and 2-3 cm. wide, with slender yellow midribs, 

 and thin primary veins within the parenchyma; petioles stout, wing- 

 margined to below the middle, often rose color in the autumn, 6-7 mm. 

 in length. Flowers 1,4-1.5 cm. in diameter, on long slender pedicels, 

 in wide mostly 10- to 12-flowered corymbs, the elongated lower peduncles 

 from the axils of upper leaves; calyx-tube narrowly obconic, glabrous, the 

 lobes gradually narrowed from the base, wide, long, green and acuminate 

 at the apex, irregularly glandular-dentate, glabrous on the outer, slightly 

 villose on the inner surface, reflexed after anthesis; stamens 10; anthers 



