'' Cantharellula umbonata'' has an umbo.
The cap of '' Psilocybe makarorae'' is acutely papillate.">papillate.html" ;"title="Psilocybe makarorae'' is acutely papillate">Psilocybe makarorae'' is acutely papillate.
An umbo is a raised area in the center of a mushroom cap. pileus (mycology), Caps that possess this feature are called ''umbonate''. Umbos that are sharply pointed are called ''acute'', while those that are more rounded are ''broadly umbonate''. If the umbo is elongated, it is ''
cuspidate
The following terms are used to describe leaf plant morphology, morphology in the description and taxonomy (biology), taxonomy of plants. Leaves may be simple (that is, the leaf blade or 'lamina' is undivided) or compound (that is, the leaf blade ...
'', and if the umbo is sharply delineated but not elongated (somewhat resembling the shape of a human
areola
The human areola (''areola mammae'', or ) is the pigmented area on the breast around the nipple. More generally, an areola is a small circular area on the Human body, body with a different histology from the surrounding Tissue (biology), tissue ...
), it is called ''
mammilate'' or ''papillate''.
References
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Fungal morphology and anatomy
Mycology