As Sclerotinia. Annot. by R.W.G. Dennis (14 May 1963): "I see no reason to separate this from Helotium fructigenum which in Europe has ascospores of the same shape, 13-21 x 3-4 ยต, becoming 1 septate as these are." Other unattributed annotation on mounting sheet: "Differs from Peziza nyssaegena of Ellis."
Type Specimen Missing
F. J. Seaver
s.n.
1912-09-19 - 1912-01-26
19 Sep 1912
United States of America, New York, Bronx Co., Grounds of New York Botanical Garden