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| Mould isolate | Colony colour on PDA on front side | Colony colour on PDA on reverse side | Microscopic features |
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| Aspergillus flavus | Yellow green | Colourless | Conidiophores arise separately from foot cell, phialides uniseriate and sometimes biseriate; conidia globose to subglobose |
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| A. terreus | Brown | Colorless | Conidiophore borne from surface hyphae, stripes long, and smooth walled; vesicles with densely packed, short, narrow metulae and phialides; conidia unicellular, spherical, and very small |
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| A. niger | Black | Creamy | Hyphae septate and hyaline, smooth walled conidiophores arising from foot cell; vesicles globose, whole vesicle fertile bearing two series of sterigmata; catenate conidia arranged in basipetal manner, unicellular, and globose |
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| Penicillium islandicum | Ivy green | Creamy | Short conidiophores bearing a compact verticil of metulae, phialides closely packed in clusters bearing catenate conidia arranged in basipetal manner, conidia elliptical, smooth, and hyaline |
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| P. digitatum | Green | Colourless | Conidiophores borne from surface and aerial hyphae with thin smooth walls; bearing terminal penicilli; terverticillate but frequently biverticillate or irregular |
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| Alternaria | Black | Colourless | Small to large sized conidia with beak; arising in chains in acropetal manner with both transverse and longitudinal septa |
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| Cladosporium | Black | Colourless | Conidiophore tall, dark upright, and branched variously near the apex, conidia 1-2-celled ovoid to cylindrical shape |
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| Colletotrichum | Cottony white to pale gray mycelium | Colourless | Acervuli disc shaped, typically with dark spines or setae at the edge of conidiophores; conidiophores simple, elongate conidia single celled, hyaline or brightly coloured, cylindrical or pointed, straight or curved |
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| Curvularia | Green to black | Black | Simple conidiophores bearing spores apically; Conidia dark, end cells, 3–5-celled; more or less fusiform, typically bent |
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| Fusarium | Wooly white | Colourless | Conidiophores slender and simple, short or branched irregularly or bearing a whorl of phialides; conidia hyaline, variable, principally of two kinds, macroconidia several celled slightly curved or bent at the point ends, microconidia 1-celled, ovoid or oblong, borne singly or in chains |
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| Geotrichum | White | Colourless | Conidia borne solely by the breakup of hyphae to form arthroconidia |
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