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| Lunch dish left out for too long. |
Forgetting to immediately clean a lunch dish provides an easy way to grow a variety of fungal organisms without using a culture plate. Both Rhizopus spp. and Aspergillus niger have dark colored spores. The Aspergillus niger conidia are uniformly round. The Rhizopus spp. sporangiospores have an irregular walnut shape.
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| Aspergilllus niger |
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| Rhizopus spp. |
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| Penicillium spp. with Rhizopus spp. sporangiospores and Aspergillus niger conidia. |
