DERMATEACEAE 



25S 



ment has been shown to exist in the strawberry-leaf-scorch patho- 

 gen [Wolf (1924, 1926)]. In pure culture each species develops 

 conidia, whether the isolations are from ascospores or from 

 conidia. 



Fig. 102. Other stages in development of Diplocarpon. A. Young apothe- 

 cial stroma of Diplocarpon earliana, in vertical section, showing septate 

 archicarps projecting to the leaf surface. B. Bulbous haustoria that arise 

 from intercellular mycelium. C. Intertwining ascogenous hyphae of D. 

 rosae that develop similarly in D. earliana. D. Vertical section of acervulus 



of D. earliana. 



The pear-leaf-spot fungus, whose peculiar conidial stage is 

 known as EntoTnosporium maculatimt, was confirmed by Kle- 

 bahn (1918) as a discomycetous species. He placed it in Ento- 

 mopeziza. It had long ago been placed in Stigmatea, among the 



