186 BOTANICAL GAZETTE [MARCH 
der of the wall consists of a loosely interwoven network of filaments 
which become denser and more closely aggregated in the hypothecial 
region. The wall, including cortical portion, medullary portion, and 
hypothecium, may be 2.5™™ in thickness, and the hymenium may be 
0.75-0.85™™ in thickness. It should be noted in this connection 
that the apothecial wall is composed of distinct hyphae, and_ that 
they are never aggregated to form a pseudoparenchyma. This fact 
is directly opposed to the observations recorded by Kuprer,® stating 
ais 
Fic. 3.—Apothecia viewed from above, showing the Geaster-like appearance. 
that “the tissue is made up wholly of large parenchymatous cells.” 
She even gives the measurements of these cells and they are also illus- 
trated in the plate accompanying the paper. The size of these 
so-called parenchymatous cells agrees practically with our measure- 
ments of the intercellular spaces in the immature specimens as shown 
in fig. 7. 
The erroneous observation mentioned above is without doub 
to the fact that the dry specimens, which were the only ones used, 
were not completely mature. Previous to the dehiscence of the 
apothecium the hyphae which make up the wall are very small in 
t due 
