Melanconis stilbostoma. a–r Sexual morph a–d pseudostromata with ectostromatic discs in face view e cross section through 2 adjacent pseudostromata f vertical section showing 2 perithecia, ostiolar necks and central column g–k asci l–r ascospores j, k in aqueous Congo Red s–b1 Asexual morph s, t conidiomata in face view u conidioma in cross section v–x conidiophores and conidiogenous cells y–b1 α-conidia v–b1 in 3% KOH a, j, s, v–x iso-epitype WU 31897 = W.J. 1543 b–d WU 31896 e–g, i, k, o WU 38241 h, p, q WU 36779 l–n, a1 WU31899 r WU 37048 t WU 31894 u WU 15266 y M. betulinum B700016529 z M. betulinum B700016528 a1 WU31899 b1 WU 35970 = D143. Scale bars: 1 mm (a, b), 300 µm (c, d), 500 µm (e, f, t, u), 15 µm (g–k), 5 µm (l–r, y–b1), 2 mm (s), 10 µm (v–x).