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1903] CJ^A TAEGUS IN NORTHEASTERN ILLINOIS 40 ' 



above, light yellow-green below, 4-7''"' long, 3-4""' wide, w^ith 

 stout yellow midribs and thin prominent primary veins extend- 

 ing obliquely to the points of the lobes; petioles stout, grooved, 

 slightly wing-margined at the apex, pubescent on the upper side 

 early in the season, soon glabrous, often tinged with red in the 

 autumn, 1,5-2^"^ in length. Flowers about i"^"" in diameter on 

 long slender pedicels, in broad many-flowered thin-branched 

 very lax villose compound corymbs; bracts and bractlets oblong- 

 obovate to linear, acuminate, glandular, turning red in fading, 

 generally deciduous before the flowers open; calyx tube narrowly 

 obconic, thickly covered with long matted or spreading white 

 hairs, the lobes broad, acuminate, coarsely glandular-serrate, 

 with minute bright red stipitate glands, glabrous on the outer, 

 slightly villose on the inner surface, reflexed after anthesis; 

 .stamens 18-20; anthers small, pale yellow; styles 2. Fruit on 

 elongated slender glabrous pedicels, in long many-fruited grace- 

 fully drooping clusters, subglobose to short-oblong, bright 

 orange-red, lustrous, marked by occasional large pale lenticels, 

 about S"""" in diameter; cavity of the calyx deep and narrow, the 

 lobes early deciduous, leaving a ring-like border to the long 

 tube; flesh thin, yellow, sweet, dry and mealy, hardly becoming 

 soft and succulent; nutlets 2, full and rounded at the ends, 6°" 

 long, 5-6"^"^ wide, prominently grooved on the back, with a wide 

 doubly grooved ridge; ventral cavities very broad and deep, 

 extending nearly the entire length of the nutlet. 



A small tree 3-8"^ high, with slender shghtly zigzag branchlets, light 

 orange-green and glabrous when they first appear, bright red-brown, very 

 lustrous and marked by occasional small dark lenticels at the end of their 

 first season, becoming darker the following year, and armed with numerous 

 slender straight bright purple shining spines 3-4"™ in length. Flowers during 

 the last week of May. Fruit ripens the middle of October. 



Banks of the north branch of Hickory Creek at Marley, September i8q5» 

 May and October 1897; upland pastures, Mokena, September and October 

 1900, May and September 1901, -£*. /. Ilili^ 



Stamens lo orfezver. 



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\ Aiithers pink, 



Crataegus divida, n. sp, — Leaves oblong-ovate, concave- 

 ^ cuneate or rounded at the gradually narrowed entire base, 



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