THE 
AMERICAN GEOLOGIST 
Vol. XL JUNE, 1893. No. 6 
A NEW FUNGUS FROM THE COAL MEASURES. 
By H. Herzer, Berea, O. 
Plate IX. 
Genus INC OL ARIA, n. gen. 
Incolaria securiformis (n. sp.). 
Evidences of the presence of ucotyledonous plants of soft cellu- 
lar tissue, such as Fungi, during the Carboniferous period, grad- 
ually' multipl}'. It is not the abundance of the same species that 
we find, but representatives of various tribes of this family, in- 
dividualizing their genera or species. The present genus had 
hitherto not been recognized by geological researches. However 
meager these finds are, it is a gratifying fact that so much of the 
flora of remote ages is disclosed to us. 
Our genus was of the peculiarity to colonize in fissures of hark, 
filling them throughout, their extent along the principal axis, ac- 
commodating itself to the irregular forms of the opening and send- 
ing laterally^ from the length of its stem,, numerous vertical, broad, 
rounded, securiform, thin mycelia, 1^ to 2 inches in diameter, three 
or four of them overlapping each other irregularly at different dis- 
tances, ten of them thus presenting themselves. 
Tlie Fungus here described is similar in habitat to Lesquereux's 
Rhizomorpha sigillariae. It was found under the bark of a Sigillaria 
imbedded in the Zoar limestone, Tuscarawas Co. ,0., and its peculiar 
undulating outlines contrasting with the linear fluting of the Sigil- 
