584 Transactions of the Society. 
found ; these bodies are subglobose, slightly attenuated upwards, 
furnished at the apex with a minute aperture, and when mature 
have the inner surface covered with very short sporophores, each 
hearing at its apex a minute body, resembling in every respect the 
secondary spores of Heterosporium spores. These minute perithecia 
originate from mycelium closely resembling that of Heterosporium, 
but I have not seen any suggestion of a resemblance to these bodies 
in any of my cultures, neither have I succeeded in causing the spores 
of these structures to germinate ; consequently their relationship or 
otherwise with Heterosporium is at present unknown ; it is certain, 
however, that these bodies have no necessary control over the con- 
tinued development of the Heterosporium. 
