EUASCOMYCETES 



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substrate. The hyphae are slender and divided into short multinucleate 

 cells; in some species, as G. setosus, they laterally abjoint hyaline conidia 

 which may grow further by sprouting; in other species, as G. uncinatus, 

 they may break up into oidia. In G. Reessii imperfect forms are unknown 

 and reproduction takes place only sexually by perithecial formation. 



Fig. 105. — Ctenomyces serratus. A. Feather covered with fungus. B. 

 Hum with pectinate organs. C. Vegetative hyphae with conidia. 



Resting myce- 

 D. Copulation 



branches. E. Section of mature fructification. (A X %; B to D X 400; E X 200; 

 after Eidam, 1883.) 



As in Amaurascus verrucosus, each of two neighboring cells of a hypha 

 (as in G. Reessii) or two different hyphae (as usually in G. candidus) forms 

 a copulation process which is abjointed. Generally both branches appear 

 simultaneously; occasionally the antheridium appears somewhat earlier. 



