1905] Sargent, Recently Recognized Species of Crataegus 215 
scarlet, lustrous, marked by small pale dots, 1—1.2 cm. long, 7-8 mm. 
wide; calyx prominent, with a narrow deep cavity, and reflexed 
closely appressed lobes pubescent on the upper side and often decid- 
uous from the ripe fruit; flesh thick, orange color, becoming soft or 
succulent; nutlets usually 2, rounded at the ends or, when 3, acute 
at the apex, ridged on the back, with a high narrow ridge, about 7 
mm. long and 5 mm. wide. 
A shrub 3-5 m. high, with numerous stout ascending stems form- 
ing a broad round-topped head, and slender nearly straight branchlets 
marked by oblong pale lenticels, dark orange color and glabrous or 
slightly villose when they first appear, soon glabrous, bright chestnut- 
brown and lustrous during their first winter and dull gray-brown the 
following year, and armed with stout slightly curved bright chestnut- 
brown shining ultimately dull gray-brown spines 3-3.5 cm. long. 
Low moist pastures, South Lancaster, Massachusetts, Æ. 1. Thayer 
(no. 3, Parker Pasture, type !), September 1902, May and August 1903. 
Crataegus Websteri, n. sp. Leaves oval, or sometimes oblong- 
obovate on vigorous shoots, acute or acuminate, gradually narrowed 
and concave-cuneate at the entire base, finely doubly serrate above, 
with straight glandular teeth, and slightly divided above the middle 
into 3 or 4 pairs of small spreading acuminate lobes, nearly fully 
grown when the flowers open late in May and then thin, light vellow- 
green and roughened above by short white hairs and pale and gla- 
brous below with the exception of a few axillary hairs, and at maturity 
thin but firm in texture, dark yellow-green, nearly smooth on the 
upper and pale yellow-green on the lower surface, 5-6.5 cm. long 
and 3.5-4 cm. wide, with stout yellow midribs and slender conspic- 
uous veins extending obliquely to the points of the lobes; petioles 
slender, slightly wing-margined at the apex, nearly terete, glandular, 
with minute stipitate mostly persistent glands, glabrous, 2—2.5 cm. in 
length. Flowers about r.5 cm. in diameter, on long slender sparingly 
villose pedicels, in broad lax usually 8—14-flowered slightly hairy 
corymbs; calyx-tube narrowly obconic, slightly villose below the 
middle, glabrous above, the lobes gradually narrowed, acuminate, 
glandular serrate near the middle, glabrous on the outer and slightly 
hairy on the inner surface, reflexed after anthesis; stamens 7-10; 
anthers pale pink; styles 3, surrounded at the base by a narrow ring 
of white hairs. Fruit ripening the middle of September, on long 
drooping hairy pedicels, in few-fruited clusters, short-oblong, full and 
rounded at the ends, bright cherry red, lustrous, marked by large 
pale dots, r—r.2 cm. long, 8-10 mm. wide; calyx enlarged, with a 
broad shallow cavity, and spreading slightly serrate lobes red and 
villose on the upper surface; flesh thin, yellow, dry and mealy; nut- 
lets broad and rounded at the base, narrowed and rounded at the 
apex, ridged on the back, with a broad deeply grooved ridge, 6-7 
mm. long and about 4 mm. wide. 
