9 



Oi^clei? 3.— JLsco]39.ycetes. 



Type.-EUROTIUM REPENS. 



A fungus found on decaying or dead organic 

 bodies, and especially abundant on preserved fruit. 

 It makes its appearance as a delicate flocculent white 

 mycelium overspreading the surface, from which the 

 upright conidiophores soon rise in large numbers. 



ASEXUAL EEPRODUCTION. 



The conidiophores swell in the upper part into a 

 globular form, and on the upper half of the globe 

 there arise a number of peg- shaped projections 

 densely crowded and arranged radially, so that 

 finally the head of the receptacle is covered by a 

 thick layer of them. These are known as Sterigmata, 

 each of which produces a long chain of gieenish 

 conidia by abstriction. This differs from the 

 ordinary process of cell division only in the marked 

 constriction of the cell in the plane of division. These 

 conidia are sometimes called Stylospores. When ripe 

 they drop off and germinate by putting out a 

 filament from the endospore. 



SEXUAL EEPEODUCTION. 



During the foimation of conidia the sexual organs 

 appear on the mycelium. The female organ, the 



