360 CLASS ASCOMYCETEAE 



Cells not pointed, under aerobic conditions not strongly acid producing. 

 Chains of yeast-like buds produced at the ends of the hyphae and single 

 cells or clusters at the joints of the hyphae. Many species are pathogenic 

 to animals. Candida 



Crown-like or branching clusters of yeast-like cells produced from the cells 

 of the pseudomyceUum. Mostly pathogenic to animals. 



Blastodendrion 

 In addition to budding cells, arthrospores (conidia) are also produced. Mostly 

 pathogenic to animals. Trichosporon 



Keys to Other Families Possibly Related to Yeasts 



Family Nectaromycetaceae 



Only genus. Nectaromyces 



Family Rhodotorulaceae 



Only genus. Rhodotorula 



Family Spermophthoraceae 



Only genus. Spermophthora 



Family Pericystaceae 



Only genus. Pericystis 



Family Sporobolomycetaceae 



Forming yeast-like colonies reproducing mainly by budding, rarely few short 

 hyphae. 



Cells with red or salmon-colored pigment. Sporobolomyces 



Cells pallid to yellowish. B idler a 



Forming hyphae, yeast-Uke colonies, reproduction by budding wanting. 



Mycelium without clamp connections, spores falcate. Tilletiopsis 



Mycelium with clamp connections, spores not falcate, reniform or ellipsoid or 

 ovoid. Itersonilia 



Forming hyphae with clamp connections, yeast-like Ijudding present in the 

 younger colonies. Sporidiobolus 



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 Ames, L. M.: A new species of Magnusia, Mycologia, 29(2):222-225. Figs. 1-14. 



1937. 

 Arnaud, G.: Les Ast^in^es: III. Etude sur les champignons parasites, Ann. 



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1925. 

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 deBary, Anton: Eurotium, Erysiphe, Cicinnobolus, nebst Bemerkungen iiber die 



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