DOTHIDEACEAE 



185 



Fig 68. Systrenmia acicola. A. Vertical section of stroma showing struc- 

 ture of the conidial stage, Lecanosticta acicola. B. In section, a carpogonia 

 locule formed concurrently with the spermogonial locule. C. Spermogonial 

 locule. D. Chain of spermatiferous cells and spermatia. E. Cross-section 

 of elongate perithecial stroma. F. Conidia. G. Ascospores. H. Mature 



ascus. 



