CRATAEGUS IN MISSOURI.—II. 73 
PUNCTATAE. 
Crataegus latebrosa, n. sp. 
Leaves oval to ovate or rarely slightly obovate, acuminate or short- 
pointed at the apex, abruptly cuneate or rounded at the base, sharply 
often doubly serrate, and only occasionally slightly and irregularly 
lobed above the middle; when they unfold thickly covered on the 
upper surface with short white hairs and on the lower surface with 
hoary tomentum, more than half-grown when the flowers open in the 
third week of April and then thin, yellow-green and roughened above 
by short white hairs, and villose below especially on the midribs and 
veins, and at maturity thin, yellow-green, lustrous and smooth on the 
upper surface, villose on the lower surface, 5-6 cm. long and 3.5-3.8 
cm. wide, with prominent midribs and primary veins; petioles slender, 
slightly wing-margined at the apex, coated early in the season with 
long scattered white hairs, later becoming sparingly hairy, 1.3-1.5 cm. 
in length; leaves on vigorous shoots acuminate, rounded or slightly 
cordate at the broad base, often 6-7 cm. long and 4-5 cm. wide, with 
thick prominent midribs and veins. Flowers 2 cm. in diameter, on 
short slender densely villose pedicels, in compact mostly 6-12-flowered 
corymbs, their bracts and bractlets linear, scarious, glandular, often 
persistent until the petals fall, the lower peduncles from the axils of 
upper leaves; calyx-tube narrowly obconic, thickly clothed with white 
hairs, the lobes separated by wide sinuses, acuminate, glandular-ser- 
rate, with bright red glands, villose; stamens 10; anthers yellow; styles 
3-5. Fruit (gathered in August and probably not fully grown) on 
erect slender villose pedicels, in few-fruited clusters, short-oblong, 
rounded at the apex, slightly narrowed at the base, pubescent at the 
ends, 1 cm. in diameter; calyx little enlarged, with a wide shallow 
cavity and closely appressed villose lobes; flesh thin; nutlets 8-5, 
rounded at the ends, thicker at the apex than at the base, rounded 
and slightly ridged on the back, about 7 mm. long and 4 mm. wide, 
the narrow hypostyle prominent and extending to below the middle of 
the nutlets. 
Woods, Noel, Joplin County (B. F. Bush, 1, type, Au- 
gust 7, 1908, April 24, 1909). 
I have no notes on the habit, size, character of the bark, 
etc., of this plant which is readily distinguished by the 
shape of the leaves and by the small compact corymbs from 
the other species of Punctatae which are such an interest- 
ing feature of the Crataegus flora of southern Missouri. 
The branchlets are stout, nearly straight, coated when 
they first appear with long matted hairs, becoming light 
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