70 * MISSOURI BOTANICAL GARDEN 



Low 



J. H. Kellogg 

 los. 4. 5 and G 



October 



33. Crataegus acutifolia Sargent, Bot. Gazette, xxxi. 217 



(1901); Silva N. Am. xiii. 51, t, 643; Manual, 375, 



f. 294. 



bottoms, Carondelet, St 



34. Crataegus rubrisepala, n. sp. 



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

 rhombic to oval or slightly obovatc, acute at the apex, concave-cuneate at 

 the entire base, and finely often doubly serrate above, with straight 

 glandular teeth; nearly fully grown when the flowers open at the end of 

 April and then thin, yellow-green and slightly hairy along the midribs 

 above and pale and glabrous below, and at maturity thm, yellow-green 

 and lustrous on the upper surface, dull yellow-green on tlic lower surface, 

 3-4 cm long and 2.5-3 cm. wide, with slender yellow midribs, and thm 

 prominent primary veins; petioles slender, narrow-wing-margined nearly 



autumn 



vigorous shoots oval to obovatc, more coarsely serrate, often 5-6 cm long 

 and 3 5-4 cm. wide. Flowers 1.2-1.4 cm. in diameter, on long slender 



10-15-flowered corymbs 



peduncl 



-lyx 



the lobes long, slender, acuminate, enwre or Mi^jutij^ ^.a^v^v. ^^.^^^ 



near the apex, bright rose color, reflcxed after anthesis; stamens 10; 

 anthers pale yellow; styles usually 3, surrounded at the base by a nng 

 of pale tomentum. Fruit ripening the middle of October, on long slender 

 red drooping pedicels, in few-fruited clusters, subglobose to short-oblong. 



lyx 



pom 



and erect and incurved persistent lobes; flesh thin, dry and mealy; nutlets 

 2 or 3 rounded at the apex, narrowed and acute at the base, rounded and 

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



A shrub 3-4 m. high, with intricately branched stems cov- 

 ered with dark gray scaly bark and forming an ii-regular 

 round-topped head, and stout zigzag branchlets green more 

 or less tinged with red when they first appear, bccommg light 

 chestnut-brown, lustrous and marked by large Icnticels m 

 their first season and dull reddish brown the followmg year, 

 and armed with numerous stout nearly straight dark purple 



shining spines 3.5-4.5 cm. long. 



