On some sporogenous yeasts and their imperfect stages

Summary

In a systematic study of about 300 supposedly anascosporogenous yeast cultures it was found that nine strains actually did form ascospores. A further investigation of these strains, together with a comparative study of evidently closely related asporogenous strains, led to the following results.

Mycocandida pinoyisimilis (A. Cast.) Red. et Cif. var. Citelliana Red. et Gif. proved to be identical with Saccharomyces fragilis Jörgensen.

Monilia pseudotropicalis A. Cast. = Candida pseudotropicalis (A. Cast.) Basgal has to be considered as the imperfect stage of Saccharomyces fragilis Jörgensen.

Monilia macedoniensis A. Cast. = Blastodendrion macedoniense (A. Cast.) Lang, et Guerra, as well as the variety macedoniensoides [= Candida macedoniensis (A. Cast.) Berkh. var. macedoniensoides (A. Cast.) Westerdijk], should in future be designated as: Saccharomyces macedoniensis Diddens et Lodder.

The yeast incorrectly named by Beijerinck: Saccharomyces fragrans proved to be the imperfect stage of Saccharomyces macedoniensis Diddens et Lodder. Hence the correct designation of the species in question appears to be: Candida macedoniensis (A. Cast.) Berkh.

Monilia javanica Went et Prinsen Geerligs proved to be identical with Hansenula anomala (Hansen) Sydow.

A Monilia species isolated by Molle from „intertrigo blastomicetico” proved to be identical with Hansenula javanica (Groenewege) Dekker.

Candida pelliculosa Red. is the imperfect stage of the last mentioned species.

A strain received from Ota, and labeled: Myceloblastanon gifuense Taniguchi — which, however, did not answer the diagnosis of this species — proved to be identical with Debaryomyces Matruchoti Grigoraki et Péju.