Fig. 42.
Keissleriella sambucina (from FH, holotype of Otthiella aesculi). a Section of an ascoma. b Pseudoparaphyses which are narrow (less than 1.5 μm) and branch and anastomosing as trabeculate. c, d Hyaline ascospores with distinct constrictions at the septa. e Asci amongst narrow pseudoparaphyses. F. Ascus with a pedicel and ocular chamber. Scale bars: a =100 μm, b-f=10 μm