Crataegus 



Rosace ae 541 



as well as the shape and texture of the leaves, suggest that Crataegus 

 regalis may be one of the parents. 

 Ohio to 111. 



8. Crataegus disperma Ashe. (Crataegus cuneiformis of Eggleston in 

 part, perhaps not Mespilus cuneiformis Marsh., Crataegus pausiaca Ashe, 

 Crataegus peoriensis Sarg., and Crataegus praestans Sarg.) Map 1108. 

 Leaves obovate or lance-obovate, mostly 2.5-6 cm long, 1.5-4 cm wide, 

 usually pointed or acuminate at the apex, attenuate at the base into slender, 

 winged petioles, sharply serrate on the upper part of the blades or some- 

 times nearly to the base, otherwise entire or with small, cuneate or 

 spinulose lobes on shoots, rather thin but firm, glabrous or nearly so, bright 

 green and slightly glossy above, veins moderately impressed; flowers 15-18 

 mm in diameter, in few-flowered or sometimes many-flowered, glabrous 

 corymbs ; stamens about 10 or sometimes 12-15 ; anthers pink ; fruit obovoid 

 or ellipsoid, 9-12 mm in diameter, 12-14 mm long, dark red, flesh thin, 

 becoming mellow but dry ; nutlets usually 2. 



A small tree 6-8 m high, with gray, furrowed bark on the trunk and with 

 numerous, ascending or finally spreading, horizontal branches and slender 

 branchlets usually armed with numerous, slender thorns. 



The leaves, flowers, and fruit of this species resemble somewhat more 

 closely those of Crataegus crus-galli than do those of Crataegus grandis. 



General but scattered in Indiana in open woodland, mostly along streams. 



Pa. to 111. 



9. Crataegus viridis L. (Deam. Trees of Indiana, ed. 2, pi. 87. 1932.) 

 (Crataegus nitida of Eggleston in part, not of Sarg. in Deam, Trees of 

 Indiana, pi. 88. 1932.) Map 1109. Leaves extremely variable, elliptic, 

 oblong-lanceolate, rhombic, or sometimes ovate on shoots, mostly 2-6 cm 

 long, 1.5-4.5 cm wide, usually pointed or acuminate at the apex and cuneate 

 and attenuate at the base into slender (1-2 cm) petioles, coarsely serrate 

 on the upper two thirds or sometimes nearly to the base, undivided or 

 sometimes with small irregular lobes, or deeply incised on shoots, thin, 

 dark green and somewhat lustrous above, glabrous at maturity except for 

 tufts of tomentum in the axils of the veins beneath ; flowers 10-12 mm in 

 diameter, in glabrous, many-flowered, compound corymbs; stamens about 

 20 ; anthers cream white or rarely pink ; calyx lobes linear, usually entire ; 

 fruit subglobose, 5-8 mm in diameter, becoming bright red or orange red, 

 sometimes slightly pruinose ; nutlets 4-5, usually 5. 



A tree sometimes 8-10 m high with a conical or depressed crown and 

 with ascending or wide-spreading branches, pale gray bark, scaly in large, 

 thin flakes from a cinnamon color inner layer, and slender branchlets 

 often unarmed or sparingly armed with slender spines. 



In Indiana found only in the southwestern part in alluvial bottoms. 



Va. to Mo., southw. to Fla. and e. Tex. 



10. Crataegus Margaretta Ashe. (Deam. Trees of Indiana, ed. 2. pi. 

 81. 1932.) (Includes Crataegus chrysocarpa of Eggleston, not of Ashe in 

 Deam, Trees of Indiana, ed. 2. pi. 86. 1932, and Crataegus Broivnei Britt.) 



