Papers in the Biological Sciences


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Published in Transactions of the American Microscopical Society, Vol. 22, Twenty-Third Annual Meeting (May, 1901), pp. 81-88.


The list of Fungi which have been reported as parasites in the human ear is somewhat large. The number of species which are well identified is much smaller. The confusion long prevalent in the groups to which the ear-parasites belong, recently abated in the Black Moulds by A. Fischer, but still in force in the Imperfect Fungi, and the fact that otologists have not been much concerned with mycology nor always able to command the assistance of expert mycologists, have united with the inherent difficulties due to the effect of situs on the forms themselves to produce errors in determination, uncertainty, and even controversy. The greater number of the species reported and the greater number of the well identified and authenticated species belong to the Aspergillaceae. Next come the Mucoraceae. The Protoascineae and Pezizineae contribute one each. In addition there are several Imperfect Fungi, some of which, however, seem to owe their place upon the list to ubiquity rather than to any special adaptation to the habitat. It seems probable that almost any of the commoner pantogenous Imperfect Fungi is liable to be added to this portion of the list at any time.

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