ROSACES 443 



*Stamens 20. 



75. Crataegus Neo-Londinensis, Sarg., n. sp. 



Leaves ovate, acute or acuminate, full and rounded, truncate or broadly concave- 

 cuneate at the wide entire or glandular base, sharply often doubly serrate above, 

 with straight glandular teeth, and divided into numerous short narrow acuminate 

 lateral lobes, about half grown when the flowers open the middle of May and 



then very thin, light yellow-green and roughened above by short white rigid hairs 

 and paler and sparingly hairy below, and at maturity membranaceous, lax and 

 spreading, dull yellow-green and scabrate on the upper surface, pale green and gla- 

 brous below, or occasionally slightly hairy along the under side of the stout yellow 

 midribs and thin remote primary veins arching to the points of the lobes, 3'-4' long, 

 2'-3' wide, and only slightly larger on vigorous shoots; their petioles slender, 

 nearly terete, glandular, at first slightly hairy, becoming glabrous and purplish 

 toward the base, l'-2' long. Flowers l'-l' in diameter, on slender sparingly villose 

 pedicels, in lax slightly drooping usually 5-12-flowered villose or nearly glabrous 

 corymbs, with linear often slightly falcate glandular bracts and bractlets, persistent 

 until after the flowers open; calyx-tube narrowly obconic, covered with short matted 

 pale hairs, the lobes gradually narrowed from broad bases, acuminate, coarsely 

 glandular-serrate below the middle, glabrous on the outer, villose on the inner sur- 

 face; stamens 17-21, usually 20; anthers -deep rose-purple; styles 4 or 5, usually 5, 

 surrounded at the base by a narrow ring of pale tomentum. Fruit ripening and 

 beginning to fall early in September, on stout villose or glabrous pedicels, in large 

 drooping few-fruited clusters, obovate or short-oblong, bright red, often slightly pru- 

 inose, marked by numerous minute pale dots, $' f' long, ^' f' wide; calyx enlarged, 

 prominent, with spreading or erect and incurved coarsely serrate persistent lobes, 

 their upper surface bright red below the middle and covered above with soft white 

 hairs; flesh thick, orange-yellow, soft, juicy and acidulous; nutlets 4 or 5, thin, nar- 

 rowed at the ends, acute at the base, rounded at the apex, rounded and sometimes 

 broadly grooved on the back, about fy' long and T 5 ff ' high. 



A tree, often 20 high, with a tall trunk 8'-10' in diameter, covered with light 

 grayish brown slightly fissured bark, large spreading and drooping branches forming 



