Fig. 6.

Parathyridaria ramulicola. A–C. Ostiolar apices and upper part of ascomata in face view (A. with whitish ostioles in bark, B. in bark fissure, C. in stromatised wood). D. Ascoma with short-cylindrical ostiole in vertical section. E. Ascus apices and hamathecium. F, G. Peridium (F. in face view, G. in vertical section). H. Apex of immature ascus. I. Periphysis. J, K. Asci. L–P. Ascospores (O. muriform; P. with 4 septa). A, B, D–L, N. WU 36867; C, M, O. WU 36868; P. JF16012. Scale bars: A, B = 150 μm; C, D = 100 μm; E, G, I, N = 7 μm; F, J, K = 10 μm; H, L, M, O, P = 5 μm.