Morphology Morphology of rhizomorphs
Whereas rhizomorphs are mostly easily discernible, there are sometimes difficulties to distinguish emanating hyphae and cystidia. As a general rule, cystidia are characterized by a rather definite and limited length. Therefore, cystidia cause – particularly when they stand very dense – a velvety zone of stiff hairs around the mantle. Emanating hyphae are mostly irregularly shaped, variably long and grow far away from the mantle. Often emanating hyphae and cystidia co-occur.
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