CRATAEGUS IN ROCHESTER, NEW YORK. II5 



as figured in The Silva of North America in its sometimes slightly 

 hairy corymbs, in its rather larger flowers and in its later-ripening and 

 longer-hanging fruits. (See Sargent, Rhodora, v. 112 [1903] ). 



Rochester ; C. S. Sa7'gent, October 19, 1902, John Dnnbar, 

 May and September, 1901, September, 1902, C. C. Laney, May and 

 September, 1901, M. S. Baxter^ May and September, 1901 ; Ogden, 

 N. Y., Henry T. Brown, October loth, 1902. 



Crataegus acclivis, n. sp. 



Leaves ovate-oblong, acuminate, broadly cuneate or rounded at 

 the entire base, coarsely doubly serrate above, with straight gland- 

 tipped teeth, and deeply divided into numerous wide-spreading acumi- 

 nate lateral lobes ; when they unfold tinged with red, densely villose 

 on the upper surface and pubescent along the midribs and veins below, 

 and about half grown when the flowers open and then light yellow- 

 green, slightly roughened above by short white hairs and pubescent 

 along the midribs and veins below ; at maturity membranaceous, dark 

 yellow-green and nearly smooth above, pale yellow-green and glab- 

 rous below, 6-7.5 f^n""- long, 4.5-6 cm. wide, with stout yellow midribs 

 and 5 or 6 pairs of thin primary \'eins extending obliquely to the 

 points of the lobes ; petioles slender, slightly wing-margined at the 

 apex, grooved, glandular, with numerous small dark glands, densely 

 villose early in the season, becoming puberulous or glabrous in the 

 autumn, 3.5-5 cm. in length ; stipules linear, acuminate, glandular, 

 mostly deciduous before the flowers open; on vigorous leading shoots 

 leaves broadly ovate, acuminate, cordate at the wide base, deeply 

 divided into wide acute lateral lobes often 10- 11 cm. long and wide, 

 their stipules foliaceous, lunate, coarsely glandular-serrate, 1-1.5 cm. 

 wide, persistent through the season. Flowers about 1.6 cm. in 

 diameter on slender densely villose pedicels, in broad lax many- 

 flowered long-branched hairy compound corymbs, the lower peduncles 

 from the axils of the upper leaves and often several-flowered ; bracts 

 and bractlets lanceolate, glandular, large and conspicuous, persistent 

 until after the flowers open ; calyx narrowly obconic, covered with a 

 thick coat of long matted hairs, the lobes slender, elongated, acuminate, 

 serrate, with occasional large gland-tipped teeth, glabrous on the outer, 

 slightly villose on the inner surface, reflexed after anthesis ; stamens 

 usually 5 ; anthers pink ; styles mostly 5. Fruit hanging on long 

 slender slightly hairy pedicels, in many-fruited drooping clusters, 

 short-oblong, full and rounded at the ends, yellowish red, glaucous, 



