268 Transactions British Mycological Society. 



DESCRIPTION OF PLATE VI 



Fig. 



1. Hyalinia Leightoni v. lignicola. Asci and paraphyses. 



2. Parenchymatous excipulum of H. Leightoni v. lignicola. 



3. Dasyscypha conformis. Apothecia. 



4. Ascospores. 



5. Clavate marginal hairs and parenchymatous excipulum. 



6. Aseptate paraphyses containing oil drops and asci. 



7. Erinella apala. Septate paraphyses and ascus containing 



a fascicle of ascospores. 



8. Tapering marginal hairs incrusted with crystals. 



9. Orhilia leucostigma v. xanthostigma. Ascospore. 

 10. Asci containing ascospores. 



ua. Pyrenopeziza plicata f. conicola. Apothecia. 

 h. Pycnidia of Phoma conicola. 



The apothecia are to be seen growing among and arising 

 from the pycnidia. 



12. Young pycnidium of Phoma conicola. The young apo- 



thecium of P. plicata f. conicola is similar in all detail. 



13. Pycnospores oozing out of a pycnidium. 



14. Asci and paraphyses of P. plicata f. conicola. 



15. Section through young apothecium of P. plicata f. conicola 



showing the rounded hair-like growths on the excipulum. 

 t6. Section through young pycnidium of Phoma conicola. 

 ly. Apothecia of P. plicata i. conicola on cone. 



18. Pycnidium of Phoma conicola with the rounded glistening 



mass of pycnospores imbedded in mucilage. 



19. Mollisia Populi. Apothecia. • 



20. Ascospores of M. Populi. 



21. Excipulum with fimbriate margin. 



22. Paraphyses — narrow and wide varieties; also ascus con- 



taining ascospores. 



23. Calloria extumescens. Confluent apothecia. 



24. Excipulum formed of anastomosing hyphae. 



25. Apothecia of C. extumescens. 



26. Asci and paraphyses. 



27. Ascospores, continuous and uniseptate. 



28. Hyalinia Leightoni v. lignicola. Apothecia. 



29. Apothecia, crowded and confluent. 



30. Ascospores. 



