﻿1903] THE GENUS CRATAEGUS IN DELAWARE 109 



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

 rounded, truncate or sometimes slightly cordate at the broad 

 base, more or less deeply divided into four or five pairs of acute 

 or acuminate lobes, coarsely and often doubly serrate, with 

 straight or incuived glandular teeth; as they unfold suffused 

 with red and villose above, with long pale caducous hairs; at 

 maturity thin but firm in texture, glabrous, dark yellow-green on 

 the upper surface, pale on the lower surface, 4.5-6''"' 5<^"g"» 3-4^"^ 



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wide, with slender midribs slightly impressed above and 4 or 5 

 pairs of remote primary veins extending to the points of the 

 lobes; petioles slender, slightly grooved, at first glandular, with 

 numerous small dark deciduous glands, often red belowthe middle, 

 1.5-2*^™ long; stipules linear, acuminate, finely serrate, bright red, 

 caducous. Flowers 1.5 ^"^ in diameter, in compact mostly 5-fO- 

 flowered thin-branched glabrous compound corymbs ; bracts and 

 bractlets oblong-obovate to linear, acuminate, finely glandular- 

 serrate, bright red, caducous; calyx-tube narrowly obconic, the 

 lobes acuminate, entire or slightly serrate toward the apex, often 

 * red toward the base, reflexed after anthesis ; stamens 5-7; anthers 



i small, dark red tinged with purple ; styles 3 or 4, surrounded at 



the base by a narrow ring of pale tomentum. Fruit in few- 

 fruited drooping clusters, usually on short pedicels, short-oblong 

 to subglobose, scarlet, lustrous, i-i.i """^ long; calyx cavity broad 

 and shallow, the lobes gradually narrowed from broad bases, 

 acuminate, mostly entire or sparingly serrate, red on the upper 

 side toward the base, closely appressed; flesh yellow, thick and 

 * succulent; nutlets 3 or 4, thick, narrow and acute at the ends, 

 prominently ridged on the back, with a thin high ridge, 7-8"^°" 

 long. 



A shrub 2-3 "^ tall, with numerous stems spreading into broad thickets 

 and slender slightly zigzag branchlets olive-green tinged with red when they 

 first appear, dull red-hrown during their first and olive-green during their 

 second year, and armed with numerous stout shghtly grooved bright chestnut- 

 brown spines 3-5^"^ long. Flowers from the loth to the middle of May. 

 Fruit ripens early in September and soon falls. 



Rocky hillsides and the borders of swamps in rich moist soil. Between 

 Newport and Stanton, May and September 1899; Clayton street and Delaware 



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