164 Scientific Proceedings, Royal Dublin Society. 



PLATE XIV. 



[Note. — All the figures loere drawn by Miss R. Hensman.] 



Fig. 



1. Section of canker showing perithecia of Physalospora gregaria y 



Sacc. x 100. 



2. Section through ripe perithecium of Physalospora gregaria, Sacc. 



x 440. 



3. Isolated ascus, with paraphyses of same, x 500. 



4. Canker-spot, surface-view, showing skin of rod splitting and 



peeling away, x 10. 



