CRATAEGUS IN MISSOURI.—II. 79 
ters, subglobose, often slightly broader than high, orange-red, 8-9 mm. 
in diameter; calyx inconspicuous, with a narrow deep cavity, the lobes 
usually deciduous from the ripe fruit; flesh thin, dry and mealy; nut- 
lets 5, acute at the apex, broader and rounded at the base, rounded 
and slightly grooved on the back, 4-5 mm. long and 2.5-3 mm. wide. 
A narrow arborescent shrub with small erect stems and 
branches, and slender nearly straight glabrous branchlets 
dark orange-green when they first appear, light orange-brown 
and lustrous in their first season, darker-colored in their sec- 
ond year, and finally dull gray-brown, and unarmed or fur- 
nished with occasional slender straight spines 3-4 cm. in 
length. 
Riverview Park on dry rocky hills in sterile soil above 
the bluffs of the Mississippi River near Hannibal, Marion 
County (J. Davis, 56, type, May 18, 1909, October 6, 1911). 
From Crataegus Davisii this species is distinct in habit, 
in the shape of the leaves, in the smaller flowers and in 
the calyx of the fruit which has a deep narrow cavity, while 
in the fruit of Crataegus Davisii the cavity is broad and 
shallow. 
The only publication devoted to the flora of northeastern 
Missouri appeared in a list of the plants growing at Louisi- 
ana, on the Mississippi River not far below Hannibal, in 
a “Catalogue of the United States Plants in the Department 
of Agriculture” issued for exchange purposes by Isaac 
Newton—then Commissioner, in 1866, the authorship of 
which has been ascribed to Mr. F. Pech, and it is fitting that 
his name should be associated with one of the thorns of 
this part of the state. 
PRUINOSAE. 
Crataegus seducta, n. sp. 
Glabrous with the exception of the hairs on the calyx-lobes. 
Leaves ovate, acuminate, rounded, truncate, slightly cordate or 
abruptly cuneate at the broad base, coarsely doubly serrate, with 
straight glandular teeth, and divided into 4 or 5 pairs of short broad 
lateral lobes; nearly one-third grown when the flowers open about the 
20th of April and then thin, yellow-green and pale below, and at 
maturity thick, dark blue-green on the upper surface, pale blue-green 
on the lower surface, 6.5-8 em. long and 6-7 em. wide, with slender 
midribs, and 4or 5 pairs of thin primary veins remote from each other 
