428 



MEDICAL MYCOLOGY 



either terminally or laterally. Meanwhile the sexual organs become sur- 

 rounded with a loose mycelial weft, or stroma, whose peripheral hyphae form 

 peculiar lateral thick-walled, brown spines (Eidam 1883, Dale 1903). 



Fig-. 74. — Ctenoniyces serratus. 1, spiral hyphae ; 2, ascospores ; 5, mycelium with aleuro- 

 spores ; i, 6, early stages of copulation ; 5, mycelium beginning- to form cover for asci ; 7^ resting 

 mycelium with pectinate hyphae; 8, ascccarp with pectinate hyphae. (After Eidam 1880.) 



A more compactly built rind is found in Ctenomyces whose only well- 

 known species, C. serratus (Fig. 73, 3), occurs on decaying hen feathers. In 



