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CRATAEGUS IN MISSOURI.—II. 75 
VIRIDES: anthers yellow. 
Crataegus lutensis, n. sp. 
Glabrous with the exception of the hairs on the young petioles and 
in the axillary tufts. Leaves obovate or rarely oval or ovate, acumi- 
nate and long-pointed at the apex, gradually narrowed and cuneate at 
the base, doubly serrate above, with straight or incurved glandular 
teeth, and mostly 3-lobed at the apex or above the middle; nearly fully 
grown when the flowers open early in May, and at maturity;thin, dark 
yellow-green and lustrous on the upper surface, dull green and fur- 
nished below with small tufts of axillary hairs, 4-5 cm. long and 3-4 
cm. wide, with thin midribs, and slender veins extending to the points 
of the lobes; petioles slender, slightly wing-margined at the apex, 
covered on the upper side when they first appear with long pale hairs, 
becoming glabrous, 1.5-2 cm. in length; leaves on vigorous shoots 
ovate, acuminate, abruptly cuneate or occasionally rounded at the 
broad base, coarsely serrate, deeply divided into wide acuminate lobes, 
often 6-7 cm. long and 6 cm. wide, with prominent midribs and prim- 
ary veins. Flowers 1.5 cm. in diameter, on slender pedicels, in mostly 
10-15-flowered corymbs, their lower peduncles from the axils of upper 
leaves; calyx-tube narrowly obconic, the lobes long, slender, acuminate, 
entire, reflexed after anthesis; stamens 20; anthers yellow; styles 3-5, 
surrounded at the base by a narrowring of pale hairs. Fruit ripening in 
October, on long drooping stalks, in few-fruited clusters, short-oblong, 
rounded at the ends, orange-red, marked by small dark dots, about 
6 mm. long and 4.5 mm. wide; calyx enlarged and prominent, with a 
wide deep cavity, and closely appressed lobes; flesh thin, yellow, dry 
and mealy; nutlets 3-5, rounded at the apex, narrowed at the base, 
slightly grooved on the back, 3.5 mm. long and 2.5 mm. wide. 
_ A tree sometimes 4 m. high, with a slender trunk, small 
ascending branches and slender slightly zigzag branchlets 
dark orange-green when they first appear, becoming dull 
red-brown and marked by pale lenticels in their first sea- 
son and dull gray-brown the following year, and unarmed 
or occasionally furnished with straight slender chestnut 
brown spines 3.5-4 cm. long. 
~ In low wet bottom-lands of Shoal Creek, Reading’s Mill, 
Newton County, common (LE. J. Palmer, 37, type, Septem- 
ber 26 and 30, 1908, May 8, 1909). 
To be distinguished from C. viridis Linnaeus by the shape 
of the thinner leaves, especially those of vigorous shoots, 
and by the short-oblong fruits. 
