68 MISSOURI BOTANICAL GARDEN. 
length; leaves on vigorous shoots oval to slightly obovate, acuminate 
and abruptly short-pointed at the apex, cuneate at the base, coarsely 
serrate, often 7 cm. long and 3.5-4 cm. wide, their stipules linear, 
glandular-serrate, often falcate. Flowers 1.2-1.3 cm. in diameter, on 
long slender pedicels in wide compact mostly 12-20-flowered corymbs, 
the lower peduncles from the axils of upper leaves; calyx-tube nar- 
rowly obconic, the lobes long, slender, acuminate, entire, reflexed 
after anthesis; stamens 10; anthers pale pink; styles 1 or 2. Fruit 
ripening late in September, on long drooping stems, short-oblong or 
slightly ovate, rounded at the ends, orange-red marked by large dark 
dots, about 1 cm. long and 8-9 mm. wide; calyx prominent, with a 
short tube, a deep narrow cavity rounded in the bottom, and reflexed 
lobes; flesh thin, dry and mealy; nutlet 1, slightly narrowed and 
rounded at the ends, slightly and irregularly ridged, 7-8 mm. long and 
5 mm. in diameter, or when 2 about 3 mm. wide, the narrow hypostyle 
extending to below the middle of the nutlets. 
A tree sometimes 7 or 8 m. high, with a tall trunk 15- 
18 cm. in diameter, covered with rough gray bark, spread- 
ing branches forming a wide round-topped head, and slen- 
der zigzag branchlets dark orange-green when they first 
appear, becoming light orange-brown at the end of their 
first season and dull gray-brown the following year, and 
armed with numerous stout nearly straight chestnut brown 
spines 5-9 cm. long, persistent and becoming branched on 
old stems. 
Near Springfield, Greene County (J. H. Kellogg, 123, 
type, May 3 and September 19, 1908; 722, May 2 and Sep- 
tember 24, 1908; 122, with 10-14 stamens, May 2 and Sep- 
tember 24, 1908). 
CRUS-GALLI: stamens 10: anthers yellow or white. 
Crataegus paradoxa, n. sp. 
Leaves oblong-obovate, acute, acuminate, or rarely rounded at the 
apex, gradually narrowed and concave-cuneate at the entire base, and 
finely often doubly serrate above with straight or incurved glandular 
teeth, nearly fully grown when the flowers open in the first week of 
May and then thin, covered above by short white hairs and villose on 
the midribs and veins below, and at maturity thick, yellow-green, lus- 
trous and glabrous on the upper surface, paler on the lower surface, 
and still villose on the prominent midribs and slender primary veins, 
3.5-4 cm. long and 1.5-2 cm. wide; petioles slender, slightly wing-mar- 
gined at the apex, densely villose early in the season, becoming spar- 
ingly villose or nearly glabrous before autumn, 8-12 mm. in length; 
