 | ||
The pileus area index is the technical name for the size of what is commonly known as the "cap" of a fungal fruiting body. It was coined by Asher Tarivona Mutsengi, a researcher at the University of Texas at Austin. It is particularly characteristic of agarics, boletes, and some polypores, tooth fungi, and ascocarps.
References
Pileus area index Wikipedia(Text) CC BY-SA