The fungus,
Memnoniella spp.
is closely related to
Stachybotrys spp. It has a similar conidiophore. Unlike
Stachybotrys spp. the dark spores are round and in chains. Like
Stachybotrys spp. the organism has a preference for materials with cellulose. Wet untreated sheetrock is often a source.
Growth on MEA and PDA is better than DG-18. It can be found on Air-o-cell cassette air samples but it can be difficult to distinguish between
Memnoniella spp. and
Aspergillus niger. The
Memnoniella spp. spores are often darker.
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| Memnoniella spp. - Line Drawing N. Carlson |
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| Memnoniella spp. in culture N. Carlson |
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| Memnoniella spp. from a tease tape. 400x each small tick mark is 2.5 microns - N. Carlson |
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| Memnoniella spp. growing on sheetrock - N. Carlson |
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