CRATAEGUS IN MISSOURI. 49 



mostly within the parenchyma; petioles stout, slightly wing-margined, 

 often rose color in the autumn, 4-5 mm. in length; leaves on vigorous 

 shoots oval to slightly obovate, rounded and short-pointed at the apex, 

 abruptly concave-cuneate at the base, 3-4 cm. long and 2-2.5 cm. wide, 

 with stouter rose-colored midribs, and more prominent primary veins. 

 Flowers about 1 cm. in diameter, on long slender glabrous pedicels, in 

 mostly 4-7-flowered simple corymbs; calyx-tube narrowly obconic, the 

 lobes gradually narrowed from the base, broad, short, acuminate and 

 glandular at the apex, entire or minutely and irregularly glandular- 

 dentate, reflexed after anthesis; stamens 10; anthers pink; styles 2, 

 Fruit ripening in October, on slender erect pedicels, in few usually 1- or 

 2-fruited clusters, oval to ovate, dull green, with a reddish cheek, marked 

 by large pale dots, 9-10 mm. long and 6-7 mm. in diameter; calyx prom- 

 inent, with a short tube, a deep narrow cavity, and large spreading and 

 erect persistent lobes; flesh green, thin, dry and hard; nutlets 2, obtuse 



6-6.5 mm 



4.5-5 mm. wide. 



A tree sometimes 7 m. high, with a tall trunk 2-2.5 dm. in 

 diameter, covered with very dark scaly bark, small spreading 

 branches forming an oblong round-topped head, and very 

 slender nearly straight glabrous branchlets light reddish 

 brown and marked by pale lenticcls when they first appear^ 

 becoming light chestnut-brown and lustrous in their first sea- 

 son and dull gray the following year, and armed with numer- 

 ous slender nearly straight purple shining spines 3-4 cm. long. 



Pacific, Frankhn County, /. H. Kellogg (No. 7 type), May 2, 

 1905, J. H. Kellogg and C. S. Sargent, September 29, 1907. 



9. Crataegus tantula, n. sp. 



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and branchlots. Leaves oval to rhombic or to ovate or occasionally obovate, 

 acuminate, gradually narrowed to the concave-cuneate entire base, and 

 finely serrate above, with straight or incurved glandular teeth; nearly half- 

 grown when the flowers open about the 20th of May and then thin and yel- 

 low-green, villose above along the midribs, with long white deciduous hairs, 

 and slightly hairy in the axils of the veins below, and at maturity sub- 

 coriaceous, dark green and very lustrous on the upper surface, pale yellow- 

 green on the lower surface, 3-4 cm. long and 1.5-2 cm. wide, with slender 

 yellow midribs, and obscure primary veins within the parenchyma; pet- 

 ioles slender, slightly wing-margined at the apex, sparingly villose wliile 

 young, becoming glabrous, often rose color in the autumn, 5-7 mm. in 

 length. Flowers 1.2-1.3 cm. in diameter, on long slender glabrous pedi- 



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irymbi 



4 



