200 i Rhodora [NOVEMBER 
A shrub 3-4 m. high, with long slender much branched stems form- 
ing an open irregular head, and slender nearly straight branchlets 
marked by crowded pale lenticels, dark green tinged with red when 
they first appear, becoming purple and rather lustrous during their 
first season and dull reddish brown the following year, and armed 
with short purplish shining ultimately gray spines 3—4 cm. long and 
persistent on the old branches and stems. 
Rich moist hillsides, Shirley, Middlesex County, Massachusetts, 
C. S. Sargent (no. 5 type!), September 1902, Æ. F. Thayer, Septem- 
ber 1904, May and June 1905. Zhayer and Sargent, September 1905. 
Crataegus Damei, n. sp. Leaves oblong-ovate or rarely oval, 
long-pointed and acuminate at the apex, rounded or cuneate at the 
entire base, sharply doubly serrate above, with slender glandular 
teeth, and divided into 5 or 6 pairs of narrow acuminate lobes usually 
pointing forward, deeply tinged with red when they unfold, nearly 
fully grown when the flowers open the middle of May and then mem- 
branaceous, yellow-green and roughened above by short rigid hairs 
and pale or glaucous and glabrous below, and at maturity very thin, 
dark blue-green and smooth or slightly roughened above and pale 
below, 4.5-5.5 cm. long and 3.5-4 cm. wide, with slender yellow mid- 
ribs, and thin primary veins arching obliquely to the points of the 
lobes ; petioles slender, grooved on the upper side, glabrous, 2-2.5 
cm. in length; leaves on vigorous shoots broader in proportion to 
their length and often truncate at the base. Flowers about 1.5 cm. 
in diameter, on slender elongated glabrous pedicels, in compact usu- 
ally 5-7-flowered corymbs ; calyx-tube narrowly obconic, glabrous, the 
lobes slender, entire, acuminate, red and glandular at the acuminate 
apex, glabrous on the outer, slightly villose on the inner surface, 
reflexed after anthesis ; stamens 10; anthers light pink; styles 2-4, 
surrounded at the base by a narrow ring of pale hairs. Fruit ripen- 
ing at the end of September, on long slender drooping pedicels, in 
many-fruited clusters, oblong to obovate, gradually narrowed at the 
base, full and rounded at the apex, bright cherry red and lustrous, 
marked by numerous minute dots, 1.3-1.5 cm. long, about 8 mm. 
wide ; calyx small, with a deep narrow cavity, and slender entire lobes 
red on the upper side below the middle and spreading or incurved ; 
flesh thin, yellow, rather juicy; nutlets 2-4, narrowed and rounded 
at the base, acute at the apex, ridged on the back, with a high nar- 
row ridge, about 7 mm. long and 4 mm. wide. 
A shrub 4-5 m. high, with numerous slender spreading stems form- 
ing a wide open head, and very slender nearly straight branchlets 
marked by small dark lenticels, light orange-green and glabrous when 
they first appear, becoming chestnut-brown and somewhat lustrous 
during their first winter, dull reddish brown the following year, ulti- 
