6 BOTANICAL GAZETTE [JANUARY 
nearly white firm flesh; nutlets two, or rarely three, thick, 
prominently ridged, about ¥% in. long. 
A tree 20 or 25 feet in height with a trunk sometimes a 
foot in diameter covered with dark brown scaly bark, stout 
spreading branches forming a broad flat-topped head, and 
slightly zigzag, glabrous branchlets green when they first 
appear, orange-brown and lustrous during their first season, 
growing lighter during their second year, and armed with 
straight or slightly curved very slender dull chestnut-brown 
spines 2 to 24% in. long. Flowers from the middle to the end 
of May. Fruit ripens early in October but when gathered 
retains its shape and color until December. 
In open woods along the moist borders of streams or depres- 
sions in the prairie and on hillsides in clay soil. Short and 
Peoria counties, Illinois, where it was discovered by Mr. Vir- 
ginius H. Chase of Wady Petra, Illinois, September 1897 (nos. 
48, 446, 449, 481, 485). 
Crataegus pratensis, n. sp.—Leaves obovate-oblong, pointed 
or rounded at the apex, gradually tapering below and decurrent 
nearly to the base of the short slender petioles, sharply and 
often doubly serrate usually only above the middle with teeth 
tipped with minute dark red caducous glands, more or less 
deeply divided above into short broad acute lobes, with slender 
midribs and narrow oblique primary veins deeply impressed on 
the upper side and raised and prominent below, bright bronze- 
yellow and coated on both surfaces with short pale hairs when 
unfolding; at maturity glabrous, thick and firm, dark green and 
lustrous on the upper surface, pale on the lower surface, % to 2 
in. long, I to 1% in. broad, and on vigorous shoots often 3 in. 
long and 2% in. broad; stipules lunate, stalked, coarsely 
_ glandular-serrate, on vigorous shoots often 1 in. in length. 
Flowers % in. in diameter, in broad loose thin-branched many- 
flowered compound pubescent ultimately glabrous cymes; calyx 
coated on the outer surface with matted white hairs, the cavity 
deep and narrow; calyx-lobes acute, coarsely glandular-serrate, 
spreading or more or less reflexed at anthesis, often deciduous 
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