158 Proceedings of Indiana Academy of Science. 
The host has recently been determined by Mrs. Agnes Chase as H. cilianensis 
(All.) Link. 
299 UsTiLAGO SPHAEROGENA Burrill. 
On POACEAE: 
Echinochloa Walteri (Pursh) Nash, one mile northwest of Thayer, New- 
ton Co., Oct. 14, 1920. 
This was collected in small amount on the same plants that bore Toly- 
posporum bullatum Sehrot. (c. f. 49). 
24. USTILAGO STRIAEFORMIS (West.) Niessl. 
ON POACEAE: 
Elymus virginicus L., one-half mile south of Wilders Station, Laporte Co., 
Oct. 5, 1920. 
25. USsTILAGO UTRICULOSA (Nees) Tul. 
ON POLYGONACEAE: 
Persicaria hydropiperoides (Michx.) Small, one-half mile south of Bol- 
ivar, Wabash Co., Sept. 15, 1919, C. C. Deam 380028; one mile northwest of 
Thayer, Newton Co., Oct. 19, 1920. 
Persicaria lapathifolia (.) S. F. Gray, Bluffton, Wells Co., Aug., 1905, 
C. C. Deam (spec. in herb. U. 8S. Dept. Agr.). 
Persicaria Persicaria (.) Small, four miles northwest of Patoka, Gibson 
Co., Oct. 6, 1917, C. C. Deam 24185. 
48. Urocystis AGRopyriI (Preuss.) Schrot. 
ON POACEAE: 
Elymus canadensis L., south of West Lafayette, Tippecanoe Co., Aug. 9, 
1918. 
45. UROCYSTIS CEPULAE Frost. 
On ALLIACEAE: 
Allium cepa I. 
In the previous report it was stated that no specimens of this smut had 
been seen. It has since been found to be common and to cause a serious 
disease of onion sets in certain sections of Lake county. An ample collection 
was made near Hammond, July 27, 1920. It has also been observed com- 
monly on onion sets on the market in Lafayette. The source of these, 
however, is unknown. A fine specimen collected at Crawfordsville, Mont- 
gomery Co., Aug. 10, 1907, by M. B. Thomas, is in the herbarium of the 
Missouri Botanical Garden, No. 13283. 
46. Urocystis ORNITHOGALI Koern.; Fisch. de Waldh. Apercu Syst. Ust. 41. 
1877. 
Specimens of Urocystis on Quamasia hyacinthina (Raf.) Britton were 
referred in the 1917 list under this number to U. Colchici (Schlecht.) Rab. 
A more careful study has led to the conclusion that they are more properly 
referred to U. Ornithogali. This species has been commonly considered 
identical with U. Colchici but is treated separately by Schellenberg in his 
excellent monograph of the smuts of Switzerland (Beitriige Krypt. Schweiz 
3°:139. 1911). After studying all the Kuropean material available the 
writer is inclined to agree with this view. 
