CRATAEGUS IN MISSOURI.—II. 69 
leaves on vigorous shoots oval to slightly obovate, abruptly acuminate 
at the apex, cuneate at the base, foliaceous, coarsely serrate, 5-6 cm. 
long and 3-4 cm. wide. Flowers 2 cm. in diameter, on long slender 
slightly villose pedicels in mostly 8-12-flowered glabrous or slightly 
hairy corymbs, the long lower peduncles from the axils of upper 
leaves; calyx-tube narrowly obconic, glabrous, the lobes long, slender, 
acuminate, entire or minutely dentate near the base, glabrous, re- 
flexed after anthesis; stamens 10; anthers yellow; styles 2 or 8. Fruit 
ripening in October, on slender glabrous pedicels, in drooping clusters, 
ovoid, narrowed and rounded at the ends, red marked by occasional 
dark dots, 8-10 mm. long and 6-7 mm. wide; calyx prominent, with a 
shallow cavity, and coarsely spreading persistent lobes; flesh thin, 
dry and mealy; nutlets 2 or 3, usually 2, rounded at the ends, rounded 
and ridged on the back with a low broad ridge, about 6 mm. long 
and 3-3.5 mm. wide, the broad hypostyle extending to the middle of 
the nutlet. 
An arborescent shrub 2-3 m. high, with stems covered 
with dark gray scaly bark, stout ascending branches and 
thick zigzag branchlets light orange-green and loosely cov- 
ered with long white hairs when they first appear, still 
villose or nearly glabrous, dark red-brown and marked by 
pale lenticels at the end of their first season and dull red- 
brown the following year, and armed with a few stout straight 
spines 3-4 cm. in length. 
Upland thickets in dry limestone barrens or in low 
moist soil near the banks of small streams. Joplin, Joplin 
County (E. J. Palmer, 11, type, May 8 and September 27, 
1908 ; 77A, September 27, 1908) ; Webb City, Joplin County 
(E. J. Palmer, 45, 45A, 45B, May and September, 1909). 
From all the other Crus-galli species with 10 stamens 
and yellow anthers of southern Missouri, where these spe- 
cies abound, Crataegus paradoxa differs in the presence of 
hairs on the leaves, corymbs and young branches. From 
Crataegus Palmeri Sargent, which is common in the same 
region and is entirely glabrous, it differs also in the shape 
of the leaves, especially those on vigorous shoots; these are 
pointed and without lobes, while those of Crataegus Palmeri 
are usually broad at the apex and often lobed. It differs, 
too, from that species in its longer ovoid, not subglobose or 
short-oblong, fruits. 
