Ustilaginales of Indiana. IT. 159 
’ According to this treatment, the smut on Liliaceous hosts belonging to 
the tribe Scilleae, including besides the American Quamasia, species of 
Muscaria, Ornithogalum and Scilla in Europe, would be assigned to U. Orni- 
thogali, while U. Colchici would include the European form on Colchicwmn 
autumnale. The writer is not able to express an opinion as to whether the 
form on Conyallariaceae in Europe and America is properly assigned to 
either of the above species, as sufficient material has not been available for 
study. Clinton (Bost. Soc. Nat. Hist. Proc. 31:452. 1904; N. Am. Flora 
7:57. 1906) has assigned specimens on Salamonia and Vagnera, collected 
in Iowa and Montana, somewhat doubtfully to U. Colchici. 
U. Ornithogali differs from U. Colchici chiefly in the widely different 
character of the sorus, the size of the spores, and the character and wall 
color of the surrounding layer of sterile cells. In the former the sori are 
elliptical, commonly half as broad as long, the spore balls consist usually 
of one, rarely two spores, which are 18-22 u in diameter, and the sterile 
eélls form a firmly united unbroken spore covering, the walls of which are 
cinnamon-brown. In the latter the sori are linear, often ten or more times 
as long as broad; the spore balls consist of one to two, rarely three spores, 
which are 14-20u in diameter; the sterile cells with light cinnamon-brown 
walls form a loose often interrupted layer over the spores. 
SPECIES NEW TO INDIANA. 
USTILAGINACEAE, 
48. THECAPHORA IRESINE (Elliott) Jackson, Mycologia 12:154. 1920. 
Tolyposporium Tresine J. A. Elliott; Mycologia 11:88. 1919. 
Sori localized in the inflorescence, involving the ovaries. and parianth of 
one or a group of flowers, often involving the rachis and rarely occurring on 
the stem or leaves, forming irregular compound galls 0.3-3.5 em. long, en- 
closed by a firm, grayish-green membrane, which ruptures irregularly ex- 
posing the reddish-brown spore mass; spore balls solid, subsphaeroid, 40-70u 
or ellipsoid, 50-70 by 60-90u, light chestnut-brown, composed of many, 15-70, 
spores; spores variable in shape, irregularly polyhedral, prismatic or ob- 
long, 12-20 by 25-82u; inner wall thin, 1-1.5u, colorless or pale cinnamon- 
brown, smooth, exposed wall 2-4u thick, darker in color with prominent 
verrucose-rugose markings. 
On AMARANTHACEAE: 
Tresine paniculata (L.) Kuntze. Ina dried up wooded slough, about one- 
half mile south of Half Moon pond, ten miles southwest of Mount Vernon, 
Posey Co., Sept. 21, 1918, C. C. Deam 26651 (type) ; Sept. 26, 1920, C. C. 
Deam 33041. 
This remarkable smut was sent to the writer among other parasitic fungi 
in the fall of 1918 by Mr. Deam. It was at once recognized as a species of 
Thecaphora and an examination of the literature revealed that only one 
species of this genus was known in North America on Amaranthaceae, 
namely, Thecaphora Thornberi Griffiths (Bull. Torrey Club 31:88. 1904). 
The specimen on Iresine while agreeing in general with the deseription of 
that species seemed to differ in important characters. <A definite decision 
with reference to the relation of the two forms was therefore reserved until 
