160 Proceedings of Indiana Academy of Science. 
the type of T. Thornberi could be examined. Through the courtesy of Dr. 
Griffiths, two collections of his species, one of which was the type, were 
furnished for study. 
The Iresine smut was found to be very closely related to T. Thornberi 
but to differ in several important respects. The sori, while involving the 
ovaries, are not usually confined to them, as described for 7. Thornberi, 
but are indefinite, involving the ovaries and apparently the parianth of 
single flowers or groups of flowers and also occasionally the rachis. The 
spore balls are much smaller in the species under discussion, measuring 
40-75u in globoid balls, reaching 90u in occasional ellipsoid balls, while in 
T. Thornberi the globoid balls are 80-115u in diameter, reaching 145u in the 
ellipsoid ones. The spores are also somewhat larger and the markings more 
prominent than in 7’. Thornberi. 
In the meantime the species was described as Tolyposporium Tresine 
by Dr. J. A. Elliott (1.¢.), of Fayetteville, Arkansas. from the same material, 
obtaining it through Prof. B. W. Wells to whom Mr. Deam had sent speci- 
mens under the impression that the galls might be caused by inseets. The 
species obviously belongs in Thecaphora rather than in Tolyposporium and 
the transfer was made by the writer in a recent paper (1.e.). 
The second collection made by Mr. Deam in 1920 at the type loeality is 
ample and shows a great variation in the point at which the host is attacked 
and the degree of development (c. f. Fig. 1). 
49. TOLYPOSPORIUM BULLATUM Schrot. Krypt. il. Schles. 3':276. 1887. 
ON POACEAE: 
Echinochloa Crus-galli (1..) Beauy., one mile northwest of Thayer, near 
Kankakee river, Newton Co., Oct. 14, 1920; one-half mile south of Wilders 
Station, Laporte Co., Oct. 5, 1920. 
Echinochloa Walteri (Pursh) Nash, one mile northwest of Thayer, near 
Kankakee river, Newton Co., Oct. 14, 1920. 
The sori of this species occur in occasional ovaries of the grass and are 
ovate, 38-5 mm. in length, and covered by a thin, smooth, greenish membrane. 
The sori rupture irregularly disclosing the granular mass of black spore 
balls. It is not as common as Ustilago sphaerogena Purrill (ec. f. No. 22 of 
1917 list), but may occur with it in the same inflorescence. The two species 
are easily distinguished in the field. In l. sphaerogena the sori are 
usually larger, 5-9 mm. in length and are covered by a tough, hispid, gray- 
ish-green membrane, which on rupturing discloses an agglutinated or dusty 
olive-brown spore mass. 
50. Usritaco HirronyMt Schrot. in P. Henn. Hedwigia 35.:213. 1896. 
On POACEAE: 
Bouteloua curtipendula (Michx.) Torr., Bayles Mill, Wea Creek, Tippe- 
canoe Co., Sept. 15, 1920, with FE. B. Mains. 
This is a common smut west of the Mississippi river, but has not before 
been collected, to our knowledge, so far east. 
51. UsTiiaco resipua Clinton, Jour. Myce. 8:133. 1902. 
ON POACEAE: 
Danthonia spicata (1..) Beauy. In a woods two miles south of Corydon 
Junction, Harrison Co., May 26, 1919, C. C. Deam 27681. 
