426 



MEDICAL MYCOLOGY 



into short, multinucleate cells. In some species, such as G. setosus (Fig. 72), 

 they laterally abjoint hyaline conidia which may develop by sprouting; while 

 in other species, such as G. uncinatiis, they break up into arthrospores. 



Fig. 71. — Amauroascus verrucosus. 1, mycelium ; Z, S, young ascogonium and antheridium ; 

 i, 5j ascogonium developing parthenogenetically, while nuclei degenerate in antheridium ; 5, 

 beginning of septation and formation of .sterile hyphae ; 6, 1, ascogenous hyphae ; 8, ascospores ; 

 .9, perithecium with ascogenous hyphae and young asci (X900). (After Dangeard 1907.) 



In G. Reesii, the only species carefully investigated, no imperfect forms 

 have been described. Each of two neighboring cells of a hypha abjoints a 



