Pallopää

Pallopää is a Finnish term that translates to "ball head" or "round head" and is primarily used to describe a specific type of mushroom cap. This morphological characteristic refers to a convex to nearly hemispherical shape, where the cap is rounded and lacks any significant flattening or depression. Mushrooms with a pallopää are common across various fungal families.

The term is often employed in mycological descriptions to differentiate from other cap shapes, such as planar, umbonate (with a central bump), or infundibuliform (funnel-shaped). The pallopää shape can be present in both young and mature specimens, though it may flatten somewhat as the mushroom ages. Its presence can be an important identifying feature when distinguishing between similar mushroom species. Factors influencing the development of a pallopää include genetics and environmental conditions.