Dubitatio dubitationum (from NY, isotype; LPS, holotype). a Appearance of ascomata scattered on the host surface. Note the exposed white covering around the ostioles. b, c Section of an ascoma. Note the white covering (see arrow). d-f Cylindrical asci with short furcate pedicels. g, h Asymmetrical, 1-septate reddish-brown ascospores. Scale bars: a =1 mm, b = 100 μm, c-e=50 μm, f-h=20 μm