1903] Sargent,— Recently Recognized Species of Crataegus 183 
MaINnE: middle Penobscot valley, river banks in rich alluvial soil, 
Orono, M. L. Fernald, May, June and September 1901. 
To be distinguished from the closely related Crataegus succulenta, 
Link, by its thinner leaves, larger flowers, fewer stamens, erect caiyx- 
lobes of the fruit, and usually stouter spines, 
Crataegus dumicola, n. sp. Leaves oval to obovate, rounded 
and short-pointed or acute at the apex, concave-cuneate or rounded 
at the entire base, coarsely doubly serrate above, with glandular 
teeth, and slightly divided into numerous small acuminate lateral 
lobes; tinged. with red and coated above with pale hairs as they 
unfold, more than half grown when the flowers open and then thin, 
dull yellow-green and sparingly villose on the upper surface, pale 
and glabrous on the lower surface; at maturity thin but firm in tex- 
di dark yellow-green, lustrous, and scabrate above, pale below, 6—7 
. long, 4-4.5 cm. wide, with slender yellow midribs and 4 or 5 
an of thin primary veins arching obliquely to the points of the 
lobes; petioles stout, wing-margined often to the middle, villose at 
first, glabrous in the autumn, 9-14 mm. in length; stipules linear, 
acuminate, sometimes falcate, glandular, small, caducous. Flowers 
about 1.5 cm. in diameter on long slender slightly villose pedicels, 
in broad many-flowered thin-branched usually glabrous compound 
corymbs ; bracts and bractlets linear, slightly glandular, small, mostly 
deciduous before the flowers open; calyx-tube broadly obconic, gla- 
brous, the lobes abruptly narrowed from the base, slender, acuminate, 
finely glandular-serrate,:villose on the inner surface, reflexed after 
anthesis; stamens 7—10, usually 8; anthers pink; styles 3. Fruit on 
rigid glabrous pedicels, in erect few-fruited clusters, subglobose, dark 
red marked by many small pale dots, about 1 cm. in diameter; calyx 
small, sessile, with a narrow shallow cavity and spreading lobes 
generally deciduous from the ripe fruit; flesh very thin and dry; 
nutlets 3, about 8 mm. in length, broad, rounded at the ends, ridged 
on the back, with a broad rounded ridge, the ventral cavities shallow, 
irregular, often obscure. 
A shrub 2-3 m. in height with many small nearly erect branches, 
and stout nearly straight branchlets marked by few oblong pale lenti- 
cels, dark orange-green when they appear, orange-red and lustrous 
during the first season, becoming light red-brown the following year 
and ultimately ashy gray, and armed with stout nearly straight bright 
chestnut-brown shining spines 3.5-7 cm. long. Flowers during the 
first week of June. Fruit ripens about the middle of September 
and mostly falls before the end of the month. 
MAINE: river thickets, Fort Fairfield, at the mouth of the Aroos- 
took, M. L. Fernald, June and September rgor. 
Crataegus rhombifolia, n. sp. Leaves broadly rhombic to 
obovate or rarely ovate on leading shoots, acute or acuminate, gradu- 
