﻿39 S BOTANICAL GAZETTE \]\3^^ 



slightly zigzag branchlets light yellow-green when they first appear, rather 

 light red-brown, lustrous, and marked by many large pale lenticels at the end 

 of their first season, becoming lighter-colored the following year and unarmed 

 or armed with occasional straight slender dark purple shining spines 3-4*^"^ 

 in length. Flowers at the end of May. Fruit ripens from the middle to the 



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end of September, 



' Open pastures, Milton Township, Du Page county. B. T, Gattlt, May and 

 September 1902; Glen EUyn, June 1902, bluff-like banks of Hickory creek, 

 Mokena, E, J. Hill, October 1900, May and June igoi. 



Specimens collected by Dr. Hill at Mokena have smaller and rounder 

 leaves, glabrous on the lower surface when the flowers open but otherwise 

 very similar to those gathered by Mr. Gault in Milton which must be con- 

 sidered the type of this species. 



Crataegus longispina, n. sp. — Leaves ovate to rhombic, acute 

 or acuminate, gradually narrowed and cuneate at the entire base, 

 coarsely and doubly serrate above, with straight gland-tipped 

 teeth, and irregularly divided above the middle into short broad 

 acute lobes ; when the flowers open membranaceous, dark yellow- 

 green, lustrous, and covered above with soft pale hairs, lighter- 

 colored and slightly hair}^ along the midribs and. veins below, at 

 maturity very thick and coriaceous, dark yellow-green, lustrous, 

 smooth and glabrous on the upper surface, light yellow-green 

 and still slightly pubescent on the lower surface along the thick 

 yellow midribs and 5 or 6 pairs of slender prominent primary 

 veins, 6-8*'"' l<^"g» 4-6''™ wide; petioles stout, wing-margined at 

 the apex by the decurrent base of the leaf-blades, grooved, vil- 

 lose on the upper side, becoming glabrous, usually tinged with 

 purple in the autumn like the lower part of the midribs; stipules 

 linear, acuminate, glandular, small, caducous. Flowers about 

 1.2*^"^ in diameter on very long slender slightly hairy pedicels, 

 in broad many-flowered thin branched villose compound corymbs; 

 bracts and bractlets linear to linear-obovate, acuminate, elon- 

 gated glandular with minute dark red stipitate glands, conspicu- 

 ous, generally persistent until the flowers open; calyx tube 

 narrowly obconic, villose toward the base, glabrous above, the 

 lobes narrow, acuminate, coarsely glandular-serrate, glabrous on 



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the outer, sparingly villose on the inner surface; stamens 20; 

 anthers pale pink ; styles 2 or 3. Fruit on stout glabrous red 

 pedicels, in large many-fruited drooping clusters, subglobose, 



