Fig. 3
From: What is Scirrhia?
Scirrhia brasiliensis (ex-type CPC 18733). A. Fronds of Pteridium aquilinum. B, C. Stems with cankers extending into inner tissue. D. Hypostroma viewed from above. E–G, K. Sections through ascomata. H–J. Ostiolar area of ascomata, showing depressed neck. L–N. Bitunicate asci (arrow denotes apical chamber). O, P. Germinating ascospores. Q. Ascospores. Bars: B, C = 5 mm; D = 1 mm; E-H = 160 μm, all others = 10 μm.