Although he did not see the asci, Morgan believed this species must be an Ascomycetc since he felt it was impossible for the spores to be produced except in asci. Doubt has been cast on the accuracy of Morgan's description by European mycologists in spite of the fact that they had never seen the fungus, and certain American writers have accepted their decision. An additional collection from Missouri proves that Morgan was correct.
Proceedings of the Iowa Academy of Science
©1941 Iowa Academy of Science, Inc.
Martin, G. W.
"Argynna Polyhedron (Schev.) Morgan, an Ascomycete (Abstract),"
Proceedings of the Iowa Academy of Science, 48(1), 195-195.
Available at: https://scholarworks.uni.edu/pias/vol48/iss1/29