79 
beginning of September, while on all the other plots the vines were 
completely dried up. Where the soda solution had been used the leaves 
and stems appeared large and fine; where the copper lime mixture had 
been used the leaves and stems were considerably smaller. 
The harvest gave the following results: 
Plot 1 (Bordeaux mixtures).—Three-fourths average yield of sound 
tubers. The tubers were small but solid. Few were diseased. 
Plot 2 (Copper-soda solutions).—Full average yield of sound tubers, 
besides some diseased ones. None were rotten. 
Plots 3 and 4 (Azurin and Poudre Coignet).—One-fourth an average 
yield. On Plot 3, where the solution 2 b had been used, the harvest 
was two-fifths of a full yield. 
The author’s experience leads to tbe conclusion that potato fields 
should be sprayed twice—the first spraying about July 1, the second 
about August 15. For early varieties the treatments should be earlier. 
Tbe author especially recommends, in the order given, solution 2b , and 
tbe Bordeaux mixture reduced to 6 pounds 10 ounces copper sulphate, 
6 pounds 10 ounces lime, and 26 gallons of water. 
MUCRONOPORUS ANDERSONI, n. S. 
By J. B. Ellis and Benjamin M. Everhart. 
Under the bark of an oak log, Newfield, N. J., April, 1890. Found 
by Mr. F. W. Anderson, to whom the species is dedicated. Effused, 
immarginate, entirely concealed bv the bark which is finally thrown off, 
20 or more centimeters long and 5 centimeters broad. Pores about half 
a centimeter long and ^ millimeter in diameter, marginal ones broader 
and shorter, margins acute, nearly round, chestnut color, stained yellow¬ 
ish by the sulphur-yellow spores, (5-6 by 4-5//), which are discharged in 
great abundance, coloring the inuer surface of the bark and escaping 
through the cracks in the bark in such abundance as to cover the leaves 
and other things near with a bright sulphur-yellow coating. Spines 
not very abundant, conical at first, then elongated to 15-25// long by 
6-7// thick. 
The subiculum from which tbe pores arise is very thin, so that they 
penetrate almost to the wood. The hymenium when fresh is very soft 
and pliable and the walls of the pores contract in drying, so that they 
are often torn from their attachment below and the hymenium becomes 
very much cracked. 
The yellow coating of spores discharged on the bark constitutes the 
so-called u Chromosporium pactolinum , Oke. & Hark.” ( C . vitellinum , 
S. & E. in Syll.,— G. Isabrtlinum , iu N. A. F., 1391.) 
