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CRATAEGUS IN MISSOURI.—II. 
BY CHARLES SPRAGUE SARGENT. 
Since the publication in the Nineteenth Report of the 
Garden of my paper on Crataegus in Missouri, in July, 
1908, the genus has received further attention by Mr. E. J. 
Palmer, of Webb City, by Mr. B. F. Bush, who has found 
a few interesting species at Noel in Jasper County, and by 
Mr. E. J. Kellogg, who, in 1908, made large collections near 
Springfield. The Reverend John Davis, of Hannibal, a 
new collector in an entirely new field, has made known the 
presence of a number of interesting forms in the Viridis 
Group and has shown that plants of this Group extend 
further north than was suspected before Mr. Davis’s inves- 
tigations began. 
A few of the recent discoveries are described in this pa- 
per which is far from completing the account of Crataegus 
found in Missouri. With the exception of the immediate 
neighborhood of Hannibal on the Mississippi River, all that 
part of the state which lies north of the Missouri River 
is still unexplored, and there are indications in the mass 
of incomplete material which has been sent to me that 
there are still a number of distinct and interesting species 
in the southern counties requiring further investigation. 
CRUS-GALLI: stamens 10: anthers pink. 
Crataegus calophylia, n. sp. 
Glabrous with the exception of the hairs on young leaves. Leaves 
oblong-obovate, acute, apiculate or rarely rounded at the apex, grad- 
ually narrowed and cuneate at the entire base, finely glandular-serrate 
above the middle, with incurved or near the apex with straight teeth; 
tinged with red and furnished with occasional hairs on the upper side 
of the midribs when they unfold, nearly fully grown when the flowers 
open the first of May and then thin, glabrous, yellow-green above and 
paler below, and at maturity thin but firm, lustrous on the upper sur- 
face, dull on the lower surface, 5-6 cm. long and 2.5-3 em. wide, with 
slender midribs, and thin primary veins partly within the parenchyma; 
petioles narrowly wing-margined to below the middle, 8-10 mm. in 
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