2 JOURNAL OF THE ARNOLD ARBORETUM [vol. vi 



Crataegus sordida var. villosa, n. var. 



XXXIII 



M 



at Pleasant Grove, is quite glabrous with the exception of a few scattered 

 hairs on the young branches and inflorescence which become glabrous 

 before autumn, but two trees discovered by Palmer growing together on 

 the border of upland woods near Fulton in southern Arkansas in 1914, 

 differ so distinctly in their densely villose young branches, corymbs and 

 calyx with matted hairs more or less persistent during the season that 

 it seems necessary to consider these trees as representing a variety for 

 which I propose the name villosa. As the type of this variety may be 

 taken Palmer's Nos. 20,709 and 22,266, collected April 5 and October 11, 

 1922. To this variety should also be referred specimens from Williams- 

 ville, Missouri, collected first by B. F. Bush, April 25 and October 10, 

 1912 (Nos. 6649, 6941) and by Palmer, June 30, 1914 (No. 6147), April 

 20 and October 9, 1920 (Nos. 17,204, 17,245, 19,413, 19,414). 



Crataegus furcata Sargent (in Rep. Mo. Bot. Gard. xix. 86 [1908] ) 

 was based on a shrub forming thickets on limestone hills near Carterville 

 and Webb City in southwestern Missouri. It has since been found by 

 Mr. Palmer, who has seen many thousands of these plants, that when it 

 descends into valleys along streams in that part of the state it then grows 

 as a tree indistinguishable from the widely distributed C. viridis Linnaeus 

 of which C. furcata must be considered a synonym. 



Crataegus ignava has been used for two different plants, first by Beadle 

 in 1901 for a species of the Flavae group and second by Sargent in 1910 

 (in Proc. Acad. Nat. Sci. Phila. lxii. 228) for a handsome shrubby species 

 of the Pruinosae group first collected in 1909 near Bedford Springs, Bed- 

 ford County, Pennsylvania, by the late Benjamin H. Smith of Philadelphia, 

 for w r hich I now propose the name of Crataegus neosmithii. 



The name of Crataegus ampla has been given by Sargent to two different 

 plants, the first a species of Tenuifoliae from Kutztown, Pennsylvania, 

 published in September, 1905, and the second a species of Coccineae 

 from Lancsboro, Massachusetts, published in November, 1905 (in Rhodora, 

 vn. 208). For the Massachusetts species the name C. neofaxonii is now 

 proposed, this plant having been discovered in 1899 by the late Charles 

 E. Faxon. 



Crataegus Ridgwayi, n. sp. 



Leaves ovate, acute or acuminate at apex, broad and rounded or slightly 

 cordate or occasionally cuneate at base, usually slightly lobed with acujni- 

 nate lobes, and sharply often doubly serrate, scabrate above early in 

 the season by short early deciduous hairs and villose below, especially 

 on the midrib and veins, dark green on the upper surface, rather paler 

 on the lower surface, 4.5-8 cm. long and 3.5-8 cm. wide; petioles slender, 



