﻿386 BOTANICAL GAZETTE [JUNE 



Forest, May, June and September igor, E, J.Hill\ Thatcher's Park, C. S. 



Sargent, September 1900. 



This species resembles Crataegus pcdicellata Sargent, of the valley of the 

 Genesee river in New York, but differs from it in its much more villose 

 corymbs, stouter pedicels, more numerous stamens, and smaller obovate 

 fruits with small closely appressed not erect and incurved calyx-lobes. This 

 is one of the largest and handsomest thorn trees of the region and may prop- 

 erly help to perpetuate the name of its discoverer, Ellsworth Jerome Hill, 

 who with unfailing energy and through many seasons has studied Crataegus 

 in the neighborhood of Chicago. 



TENUIFOLIAE. 



Anthers pink or rose color. 



Stamens j-io, usually j. 



Crataegus apiomorpha, n. sp. — Leaves oblong-ovate, acumi- 

 nate, rounded or rarely cuneate at the entire often uns^-mmetrical 

 base, finely doubly serrate above, with slender glandular teeth 

 and slightly divided above the middle into 4 or 5 pairs of nearly 

 triangular acute lobes; about half-grov^n when the flowers open 

 and then membranaceous, light yellow-green and tinged with red 

 or bronze color, covered above with short white hairs and pale 

 and glabrous below ; at maturity thick and firm in texture, dark 

 blue-green and smooth and lustrous or sometimes dull and sca- 

 brate on the upper surface, pale blue-green on the lower surface, 

 4-6 or on leading shoots to 8^"^ long, 3-4^"^ wide, with stout 

 midribs deeply impressed on the upper side and primary veins 

 arching obliquely to the points of the lobes ; petioles slender, 

 slightly winged at the apex, grooved, often sparingly glandular, 

 1.5-2.5*^^ in length; stipules linear, acuminate, glandular, cadu- 

 cous. Flowers 1.2-1.8''"^ in diameter on short villose or gla- 

 brous pedicels, in compact, many-flowered usually hairy thin 

 branched compound corymbs ; bracts and bractlets linear to 

 oblong-obovate and rounded at the apex, finely glandular-serrate, 

 with stipitate dark red or purple glands, large, turning red before 

 falling, mostly persistent until after the flowers open; calyx tube 

 narrowly obconic, glabrous, the lobes abruptly narrowed at the 

 base, slender, acuminate, entire or sparingly glandular on the 

 margins, reflexed after anthesis ; stamens 5-10, usually 5 ; 

 anthers pink; styles 3-5, surrounded at the base by tufts of pale 



