Crataegus Rosaceae 545 



14. Crataegus macrosperma Ashe. (Deam. Trees of Indiana, ed. 2. pi. 

 89. 1932.) (Crataegus bella Sarg., Crataegus colorata Sarg., Crataegus 

 ignea Sarg., Crataegus sextilis Sarg., Crataegus Egani Ashe, Crataegus 

 otiosa Ashe, Crataegus tenera Ashe, and Crataegus uber Ashe.) Map 

 1114. Leaves ovate, mostly 3-7 cm long, 2.5-5 cm wide, acute or acuminate 

 at the apex, obtuse, rounded or subcordate at the base, sharply serrate 

 nearly to the base, usually incised on the upper half or two thirds of the 

 blades with 2-4 pairs of triangular lobes terminating in acuminate, spread- 

 ing or reflexed teeth, thin, finely scabrate on the upper surface when young, 

 otherwise glabrous ; petioles slender, eglandular or with a few small glands ; 

 flowers 15-18 mm in diameter, in usually 5-10-flowered, glabrous corymbs ; 

 stamens generally 5-10 ; anthers pink or rose color ; calyx lobes entire or 

 slightly serrate toward the base ; fruit obovoid, ellipsoid or nearly globose, 

 7-12 mm thick, 8-14 mm long, bright red and succulent at maturity, often 

 slightly glaucous ; calyx small and sessile ; nutlets 3-5. 



A small tree up to 7-8 m high, or sometimes lower and shrubby, with 

 gray, slightly scaly bark, stiff, erect or spreading branches, and stout, often 

 flexuous branchlets, armed with stout, curved thorns. 



General but not common in Indiana, growing in pastures, thickets, and 

 open woods, preferring well drained soils near streams. 



Se. Canada to 111., southw. to N. C. and the mts. of Ky. and Tenn. 



15. Crataegus pruinosa (Wendl.) K. Koch. (Crataegus conjuncta Sarg., 

 Crataegus vatrum Sarg., and Crataegus palustris Ashe?.) Map 1115. 

 Leaves ovate or elliptic, mostly 4-8 cm long, 2.5-5 cm wide, pointed or 

 short-acuminate at the apex, abruptly contracted, rounded, or subcordate 

 at the base, sharply or coarsely serrate nearly to the base, usually incised 

 with 2-4 pairs of shallow, triangular lobes, firm in texture, glabrous, 

 usually bluish green ; petioles slender, a third to half as long as the blades, 

 eglandular or with a few small glands; flowers 18-22 mm in diameter, 

 usually 6-10, in glabrous, nearly simple or somewhat branched corymbs ; 

 stamens usually about 20 ; anthers pink or sometimes pale yellow ; calyx 

 lobes lanceolate or narrowly deltoid from a broad base, entire or with a 

 few shallow teeth toward the base; fruit subglobose, depressed-globose, 

 or somewhat pyriform with an attenuate base, often 5-angled, 10-16 mm 

 in diameter, with a broad, shallow, elevated calyx, dull or rarely bright 

 crimson at maturity, or sometimes remaining green with dark dots and 

 blotches, usually with a bloom ; flesh thin, remaining hard and dry ; nut- 

 lets usually 4-5, relatively large. 



Sometimes a small tree up to 6-7 m high, or more often an arborescent 

 shrub, with dark gray, scaly bark and intricate ascending or finally spread- 

 ing branches ; the branchlets slender, glabrous, usually armed with many, 

 long, slender or stoutish thorns. 



Common and general in Indiana, growing in pastures, thickets, or 

 borders of woods, preferring dry soils along or near streams. 



Que. to Man., southw. to N. C. and Ark. 



