﻿1903] CRATAEGUS IN NORTHEASTERN ILLINOIS 381 



dark red-brown shining spines about 4.5 *="^ long. Flowers about the 20th of 

 May. Fruit ripens the middle of September, 



Daerfield, Willia)n C. Egan, May 21, 1902, E. J. Hill, September 10, 

 1902. 



Well distinguished from the other described species of this group by the 

 few-flowered corymbs, the long narrow small fruits, and the small leaves. 



Crataegus sertata, n. sp.^ — Leaves oblong-ovate, acuminate at 

 the apex, rounded, truncate, subcordate or rarely cuneate at the 

 broad base, finely and often doubly serrate, with straight gland- 

 tipped teeth, and deeply divided into five or six pairs of wide 

 acuminate lobes; thickly coated on the upper surface when they 

 unfold with short pale hairs and villose below along the mid- 

 ribs and veins, and about half-grown and villose when the flowers 

 open ; at maturit}- membranaceous, dark yellow-green and scabrate 

 above, pale yellows-green and glabrous below, 6-7*^"^ long, 4.5- 

 6.5^"^ wide, w^ith thin yellow midribs and slender primary veins 



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

 slightly grooved, villose early in the season, ultimately glabrous, 

 sparingly glandular, 1.5-3^™ in length; stipules linear to lanceo- 

 late, finely glandular-serrate, caducous. Flowers 2-2.5 "^"^ ^" 

 diameter, in broad 10-15 -flowered compound densely villose 

 corymbs ; bracts and bractlets linear to linear-obov^ate, glandular, 

 large and conspicuous, caducous ; calyx tube broadly obconic, 

 glabrous above, villose below like the slender pedicel, the lobes 

 abruptly narrowed from the base, broad, acuminate, tipped with 

 small red glands, coarsely glandular-serrate, glabrate on the outer, 

 pubescent on the inner surface, reflexed after anthesis ; stamens 

 5-10, usually 5 ; anthers pale rose color; styles 3-5, surrounded 

 at the base by tufts of pale hairs. Fruit on slender villose- 

 pubescent pedicels, in drooping many-fruited clusters, subglo- 

 bose to slightly obovate, full and rounded at the ends, bright 

 red and lustrous, becoming darker or crimson when fully ripe, 

 marked by occasional large pale dots, 1.1-1.5^^ long, from 

 1-1.4^"^ wide; calyx sessile, with a broad deep cavity and 

 enlarged mostly erect and incurved serrate lobes; flesh thin, 

 yellow, aromatic, pleasantly acid; nutlets 3-5, usually 4, thin, 

 narrowed and acute at the ends, slightly ridged on the back, 

 with a wide or narrow ridge, 8™"" in length. 



rf 1.1 _z. 



