Cystidiata

Cystidiata is a term used in mycology, the study of fungi, to describe a specific type of microscopic structure found on the surface of a mushroom's fruiting body. These structures are known as cystidia, and when a mushroom species is described as having cystidiata, it indicates the presence and often the abundance of these cystidia.

Cystidia are typically sterile (non-reproductive) cells that arise from the hymenium, the spore-bearing layer of the mushroom, often among the basidia (the cells that produce spores). Their size, shape, and presence can vary greatly between different fungal species and are therefore important diagnostic features for identification. They can be found on the gills, cap surface, or stem.

The function of cystidia is not fully understood, but several theories exist. They may play a role in spore dispersal by affecting air flow, provide mechanical support to the hymenium, secrete substances that protect against predation or infection, or even help regulate moisture. Observing and describing cystidia, or cystidiata, is a crucial step for mycologists in classifying and identifying mushroom species. Their microscopic examination requires specialized knowledge and equipment.