58 Rhodora [FEBRUARY 
branchlets, light yellow-green when they first appear, becoming bright 
chestnut or orange-brown and marked by numerous small oblong 
pale lenticels during their first season, and ashy gray or pale gray- 
brown the following year, and armed with many stout nearly straight 
lustrous chestnut-brown ultimately gray spines 2.5-5 cm. long and 
often pointed toward the base of the branch. Flowers late in May 
or during the first week of June. Fruit ripens early in October and 
falls gradually. 
MassACHUSETTs:; Somerset, Miss L. H. Handy, 1900; Topsfield, 
T. E. Proctor, October 1900, June 1901; upland pastures, Boylston 
and Lancaster, 7. G. Jack, Mrs. J. E. Thayer,and C. S. Sargent, 1899 
to 1902. Connecticut: Oxford, Æ. B. Harger, May and September 
1900 and 1901. 
Crataegus cognata, n. sp. Glabrous. Leaves ovate, acute or 
acuminate, rounded or broadly concave-cuneate at the entire base, 
sharply and often doubly glandular-serrate above and divided into 3 
or 4 pairs of short acute lateral lobes; nearly fully grown when tne 
flowers open and then thin, dark blue-green on the upper surface, 
pale on the lower surface; at maturity coriaceous, dull blue-green 
above, pale yellow-green below, 6-6.7 cm. long, 3.5-5.5 cm. wide, 
with thin yellow midribs deeply impressed above and slender primary 
veins extending to the points of the lobes; petioles slender, slightly 
winged at the apex, grooved, glandular, with small dark glands, 2-3 
cm. long; stipules linear, acuminate, glandular-serrate, caducous ; 
on vigorous shoots leaves often oblong-ovate, acuminate, subcordate 
at the base, coarsely serrate, deeply 3-lobed, the lateral lobes acute 
and much smaller than the terminal lobe, 8—9 cm. long, 7—7.5 cm. wide, 
their petioles stout, 2-3 cm. long, broadly wing-margined nearly to 
the base, conspicuously glandular. Flowers about 2 cm. in diameter 
on long slender pedicels, in broad lax thin-branched 5-7-flowered 
compound corymbs; bracts and bractlets small linear-obovate, acu- 
minate, glandular-serrate, turning red before falling, caducous ; calyx- 
tube broadly obconic, the lobes gradually narrowed from broad bases, 
elongated entire or sparingly glandular-serrate, tipped with minute 
red glands, reflexed after anthesis; stamens 20; anthers pale yellow ; 
styles 3 or 4, rarely 5. Fruit in few-fruited erect or drooping clusters, 
pyriform or when fully ripe sometimes oblong, pruinose, green or 
green tinged with red until late in the autumn, becoming dull crimson 
at maturity, about 1 cm. long, 1.8-1.9 cm. wide; calyx enlarged, with 
a short tube, a broad deep cavity, and reflexed appressed lobes, often 
deciduous from the ripe fruit; flesh thin, dry and mealy, greenish 
yellow; nuttles usually 3 or 4, thick, full and rounded at the ends, 
prominently ridged on the broad rounded back, with a high rounded 
ridge, 6-7 mm. long. 
