236 
Journal of Mycology 
[Vol. 12 
(3-4 /x difference). As the writer sees it, R mexicana, R. mimosae- 
sensitivae and R. inconspicua are all one and the same plant. 
There are four other species so closely related that they should 
be considered as one species, viz., R. expansa, Diet. & Holw., R. 
fragrans Long, R. humphreyana P. Henn., and R. pulcherrima 
Arthur, while the last two are undoubtedly identical, even to the 
peculiar colored paraphyses. 
R. expansa and R. fragrans differ mainly in the shape of their 
paraphyses, but the writer has found varying shades of these on 
the different hosts in Holway’s collection; the other characters of 
the two are practically identical; the papillae on some heads of 
R. fragrans are more pronounced than on R. expansa, while on 
others they are of the same size; R. humphreyana differs from 
both in the intense wine-colored heads of its paraphyses, but the 
shape is the same as R. expansa; this color is probably due to the 
host; the III heads of R. humphreyana have slightly less prom¬ 
inent papillae or warts; if the paraphyses are disregarded, then 
the four species are the same. No. 5359 of E. W. D. Holway is 
R. indica and not R. cassiaecola; Nos. 5324, 5328, 5326, 5263 are 
R. expansa all of Holway’s collection, “Leguminous Rusts from 
Mexico,” Bot. Gazette 39:392, June, 1905. 
Denton, Texas. 
a 
A NEW ENTOLOMA FROM CENTRAL OHIO. 
BY GEORGE F. ATKINSON. 
Specimens, notes and photograph of a fungus that proves to 
be new were received from Prof. W. A. Kellerman. The follow¬ 
ing diagnosis is given: 
Entoloma subcostatum Atkinson n. sp. 
2I 54 2 - Photogr. Coll. 
On grassy ground, Campus, Ohio State University, Colum¬ 
bus, Ohio. Coll, R. A. Young, Com. W. A. Kellerman. No. 
4930. Received Nov. 1, 1906. 
Plants gregarious or in troops or clusters, 6-8 cm high; 
pileus 4-8 cm. broad; stems 1-1.5 cm. thick. 
Pileus dark gray to hair brown or olive brown, often sub- 
virgate with darker lines; gills light salmon color, becoming dull; 
