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1903] CRATAEGUS IN NORTHEASTERN ILLINOIS 3S9 



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\ rarely subcordate at the entire base, sharply often doubly serrate 



above, with straight glandular teeth, and slightly divided above 

 the middle into short acuminate spreading lobes ; nearly half- 

 grown when the flowers open and then dark blue-green tinged 

 with red and roughened on the upper surface by short rigid white 

 hairs and glabrous to the lower surface; at maturity very thin^ 



I dull bluish green and scabrate above, pale bluish green below, 



5-6.5'^"' long, 3.5-5*^"' wide, often nearly as broad as long, with 

 thin midribs and very slender primary veins extending obliquely 

 to the points of the lobes; petioles slender, grooved, villose on 



• the upper side early in the season, becoming glabrous, glandular, 



with small red stalked glands, mostly deciduous before autumn; 



J stipules linear, acuminate, often somewhat falcate, glandular, 



turning reddish before falling, caducous. Flowers 1.8^"" in 

 diameter on long slender pedicels, in broad many-flowered thin- 

 branched compound corymbs ; bracts and bractlets linear to 

 lanceolate, glandular, turning red in fading, mostly persistent 

 until after the flowers open ; calyx tube broadly obconic, gla- 

 brous, the lobes slender, acuminate, coarsely glandular-serrate, 

 usually only below the middle, glabrous on the outer, villose on 

 the inner surface, reflexed after anthesis; stamens 5-7, generally 

 5; anthers pale pink; styles 4 or 5. Fruit drooping on long 

 slender pedicels, in few-fruited clusters, obovate, full and' rounded 

 at the apex, gradually narrowed to the base, and often furnished 

 on one side with a basal protuberance, crimson, lustrous, marked 

 by small pale dots, i.s-i.Q'^"' long and 1.2-1.5^"' wide ; calyx 

 sessile with a narrow shallow cavity and enlarged coarsely ser- 

 rate spreading and incurved lobes bright red on the upper side 

 below the middle, often deciduous from the ripe fruit ; flesh thin, 

 nearly white, acidulous, juicy; nutlets 4 or 5, thin, acute at the 

 ends, irregularly ridged and often grooved on the back, about 7 

 long. 



A tree 5"^ in height with a trunk 2"> long and 1.5^'" in diameter covered 

 with close dark gray bark divided by narrow fissures into numerous thin plate- 

 like scales, ascending branches forming a narrow oblong head, and slender 

 zigzag branchlets, dark orange color and marked by numerous small pale 

 lenticels when they first appear, light orange-brown and very lustrous at the 

 end of their first season, light gray-brown the following year, ultimately ashy 



mm. 



