Sept. 1906 ] Two New Species op Naucoria and Stropharia 193 
seedlings of the previous spring’s sowing encounter the first pro¬ 
longed hot spells of summer. At this time the disease usually 
attacks the petioles. This appears to be the period of greatest 
injury. The other period of special susceptibility is during the 
ripening of the seed, when the severest attacks are on the stems 
just at or slightly below the surface of the ground. Many 
flower heads are also killed about flowering time by attacks just 
below, but the host plant as a whole appears usually to sur¬ 
vive. These statements are only general in character, however, 
for the plant may succumb to the disease at any time during 
the summer or early fall. 
We have named the species Colletotrichum trifolii, and ap¬ 
pend the following description: 
Colletotrichum trifolii Bain sp. nov.—Maculis atris vel fus- 
cis, saepe depressis; acervulis erumpentibus, sparsis vel gre- 
gariis; basidiis hyalinis, cylindricis vel fusoideis, conidiis prope 
aequalibus; conidiis hyalinis, rectis, utrinque rotundatis, 3-4 x 
11-13/x; setulis cum conidiis, continuis vel uniseptatis, paucis vel 
numerosis, fuligineis, ad apicem pallidioribus, 4-7 x 39-62^, saepe 
sinuosis vel nodulosis. 
Habitat in vivis caulibus et petiolis, rarissime in foliis Tri¬ 
folii pratensis et Medicaginis sativae, Tennessee, Kentucky, Ar¬ 
kansas; Virginia (J. M. Westgate) ; West Virginia, Ohio 
(Yearbook U. S. Department of Agriculture, 1905, p. 609). 
University of Tennessee, Knoxville. 
TWO NEW SPECIES BELONGING TO NAUCORIA AND 
STROPHARIA. 
GEO. F. ATKINSON. 
Material received from Prof. W. A. Kellerman and Supt. 
M. E. Hard, Central Ohio, prove to be undescribed species of 
fungi. The diagnoses of these two forms are given below; the 
first is also illustrated by a half-tone from photograph made by 
the collector. 
Naucoria paludosella Atkinson n. sp. 
20076. Photographed Coll. 
Growing on living sphagnum, other mosses and on rotten 
wood, Sphagnum moor, Buckeye Lake (Cranberry Island), Ohio, 
W. A. Kellerman 4464, Sept. 1905, and M. E. Hard and W. A. 
Kellerman, Oct. 1906. (4916, W. A. K.) 
Plants 6-8 cm. high; pileus 2J-3 cm. broad; stems 3-4 mm. 
thick. 
