78 Rhodora [APRIL 
CRATAEGUS MACRACANTHA, Lindley, 7. G. Jack, Adirondack Junc- 
tion, October, 1899, La Tortue, September, 1899, Rockfield, Chateau- 
gay, Isle of Orleans, May and September, 1900, Caughnawaga, May, 
1900. 
CRATAEGUS SUCCULENTA, Link, 7. G. Jack, Montreal West, Sep- 
tember, 1899, Adirondack Junction, October, 1899, May, 1900, 
Caughnawaga, 1899, Rockfield, September, 1900; also near Tor- 
onto, D. W. Beadle, 1899. 
Crataegus integriloba. Leaves broadly obovate to oval, cune- 
ate, decurrent and entire at the base, irregularly laciniate above 
the middle with short acute lobes, coarsely doubly serrate with spread- 
ing glandular teeth; in early spring coated with soft pale caducous 
hairs and at maturity glabrous, thin but firm in texture, dark green 
and lustrous on the upper surface, pale yellow-green on the lower 
surface, 14 to 3 in. long, 14 to 2 in. wide, with slender midribs and 
numerous straight primary veins deeply impressed above; petioles 
stout, grooved, more or less broadly winged above, often bright red 
on the lower side like the base of the midribs ; stipules linear, finely 
glandular-serrate, villose, light red, # to 1 in. long, caducous. 
Flowers 3 in. in diameter, in compound thin-branched many-flowered 
villose cymes; bracts and bractlets linear, glandular-serrate, cadu- 
cous; calyx-tube broadly obconic, coated towards the base with long mat- 
ted white hairs, glabrous above, the lobes linear-lanceolate, elongated, 
entire or very rarely furnished with an occasional caducous gland; 
stamens 10; filaments rather short; anthers large, rose-color; styles 
2 or 3, surrounded at the base by a narrow ring of soft white hairs. 
Fruit in erect or drooping broad loose slightly villose clusters, sub- 
globose, bright scarlet, lustrous, marked by occasional large pale 
lenticles from } to J in. in diameter ; calyx prominent with a compara- 
tively broad deep cavity, the lobes elongated, entire, dark red on the 
upper side at the base, strongly reflexed, presistent ; flesh thin, yel- 
low, soft, sweet and pulpy; nutlets 2 or 3, about 4 in. long, thick 
and broad, prominently often doubly ridged on the back, penetrated 
on the inner faces by two broad deep lateral grooves. 
A tree from 12 to 18 feet in height with a straight erect stem 6 or 
8 inches in diameter, wide-spreading or erect branches forming an 
open irregular head and stout only slightly zigzag glabrous branch- 
lets marked by occasional small pale lenticels, very lustrous and red- 
brown or orange-brown during their first season, later becoming 
dull ashy gray, and armed with stout usually straight spines varying 
from 14 to 24 in, in length. 
Flowers during the first week in June. Fruit ripens at the end of 
September or early in October. 
Low limestone rocky ridges, 7. G. Jack, Beauharnois, August 24, 
1899, Caughnawaga, August 29, 1899, May and October, 1900, 
