CRATAEGUS IN MISSOURI. 79 



short white hairs on the upper surface and hoary-tomcntose on the lower 

 surface, about half-grown when the flowers open from the middle to the 

 end of May and then thin, roughened above by short white hairs and 

 sparingly villose below, and at maturity thin but firm in texture, yellow- 

 green, smooth, lustrous and glabrous on the upper surface, paler and 



3-4 



midribs 



petioles 



below the middle, tomentose while young, becoming nearly glabrous, 

 5-6 mm. in length; leaves on vigorous shoots rather thicker, more coarsely 

 serrate, occasionally slightly lobed, 4-5 cm. long and 2.5-3 cm. wide. 

 Flowers 1.2 cm. in diameter, on long slender sUghtly villose pedicels, 

 in narrow 4-7-, mostly 4- or 5-, flowered corymbs, the long lower peduncle 

 from the axil of the upper leaf; calyx-tube narrowly obconic, covered with 

 short matted pale hairs, the lobes slender, acuminate, finely glandular- 

 serrate, pubescent on the outer, densely villose on the inner surface, reflexed 

 after anthesis ; stamens 20; anthers pale yellow; styles 5. Fruit ripening 

 early in October, on long slender sUghtly hairy drooping pedicels, in few- 

 fruited clusters, subglobose, orange-red, lustrous, 7-9 mm. in diameter; calyx 

 little enlarged, with a wide deep cavity pointed in the bottom, and long 

 spreading and appressed often deciduous lobes; flesh thin, yellow-green, 

 dry and hard; nutlets 5, gradually narrowed and acute at the ends, rounded 

 and shghtly grooved on the back, 5-5.5 mm. long, and about 3 mm. wide. 



A tree 5 or G m 



in diameter, covered with dark red-brown bark broken into 

 small closely appressed scales, large branches spreading be- 

 low and ascending above and forming a broad rather open 

 round-topped symmetrical head, and slender nearly straight 

 branchlets orange-green and covered with pale hairs when 

 they first appear, becoming dull chestnut-red, puberulous and 

 marked by pale lenticcls in their first season and reddish 

 brown the following year, and armed with slender straight 

 or slightly curved purple shining spines 4-6 cm. long. 



Tops of dry limestone hills, Pacific, Franklin County, C. S. 

 Sargent, (No. C type) October 1, 1901, J. H. Kellogg, May 1, 

 1902, April 16, 1905; Allenton, St. Louis County, G. W. Let- 

 terman, May 1883; near St. Louis (without locality), H. 



Egged, 1886. 



The following specimens without floral notes and without 



fruit probably belong to tms species. 



Williamsville, Wayne County, B. F. Bush, (No 1470) April 

 29, 1902; Bismarck, St. Frangois County, /. B. S. Norton, 



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