CRATAEGUS IN MISSOURI.—II. TT 
small spines which are much less numerous than those of 
most species of the Crus-galli Group; and it is a pleasure 
to associate it with the name of Miss E. J. Park, assistant 
librarian of Drury College at Springfield, who at different 
times has sent me specimens with important notes on some 
of the thorns which grow in the vicinity of Springfield. 
CRUS-GALLI: stamens 15-20: anthers white. 
Crataegus effulgens, n. sp. 
Leaves oblong-obovate, acute, acuminate and rounded at the apex, 
gradually narrowed to the long cuneate entire base and finely serrate 
above, with straight glandular teeth; nearly fully grown when the 
flowers open in the first week of May and then yellow and lustrous 
above and pale below, and at maturity thin but firm, very lustrous, 
5-5.5 em. long and 2.5-3 cm. wide, with thin prominent midribs and 
primary veins; petioles slender, narrowly wing-margined nearly to the 
middle, 1-1.5 cm. in length; leaves on vigorous shoots oval to obovate, 
short-pointed at the apex, cuneate at the base, more coarsely serrate, 
often 5.5-6 cm. long and 4-4.5 cm. wide, with short stout petioles and 
thick midribs, their stipules foliaceous, obovate-falcate, glandular-ser- 
rate, deciduous. Flowers 1.5 cm. in diameter, on long slender pedicels, 
in wide mostly 12-16-flowered corymbs, the lower peduncles from the 
axils of upper leaves; calyx-tube narrowly obconic, the lobes slightly 
narrowed from wide bases, acuminate, entire, reflexed after anthesis; 
stamens 15 or 16; anthers white; styles 2, surrounded at the base by a 
ring of long white hairs. Fruit ripening at the end of September, on 
long slender drooping stalks, short-oblong, rounded at the ends, scar- 
let, lustrous, marked by large pale dots, 1.2-1.4 em. long and 1-1.2 
em, wide; calyx little enlarged, with a broad deep cavity rounded in 
the bottom, and closely appressed lobes; flesh thin, dry and mealy; 
nutlets 2, rounded at the ends, broader at the apex than at the base, 
rounded and slightly ridged on the back, 7-8 mm. long and about 4 mm. 
wide. 
A shrub with small stems sometimes 10 cm. in diameter 
forming large clumps, and slender branchlets dark orange- 
brown when they first appear, becoming reddish brown and 
lustrous at the end of their first season and dull gray-brown 
the following year, and armed with numerous slender 
straight or slightly curved chestnut brown spines, 3.5-10 
em. long and persistent on the old stems. 
Brookline, Greene County (J. H. Kellogg, 125, type, May 
7 and September 24, 1908). 
