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Mushroom Cap Shapes

The cap shape of a mushroom is one of the most discernible features that aids in the identification process. These shapes have evolved over time, adapting to various environmental factors and aiding in the reproductive success of the fungi. The cap not only protects the delicate gills, pores, and spore-producing structures beneath it but also plays a pivotal role in attracting various agents of spore dispersal. By observing the shape of the mushroom cap, one can often deduce the species or at least narrow down the possible options. Along with the cap shape, it's essential to consider other cap characteristics like the Cap Surface and the Cap Margin for a comprehensive understanding of the mushroom's identity.

There is a multitude of cap shapes, each with its unique form and characteristics. From the commonly observed convex shape, which resembles a gentle curve or a bowl, to the more peculiar shapes like the cuspidate, which appears like a witch-hat, every shape tells a story about the mushroom's habitat, age, and other ecological factors. Here, we delve into the various cap shapes, presenting a visual and descriptive guide to aid both amateur mycologists and seasoned mushroom enthusiasts in their identification journey.

Types of Cap Shapes


Convex Mushroom Cap Shape

A rounded curve; bowl-shaped.


Pulvinate Mushroom Cap Shape

Cushion-shaped. A cap that is convex and tall.


Ovoid Mushroom Cap Shape

Egg-shaped. Also referred to as hemispherical or Hemispheric.


Parabolic Mushroom Cap Shape

Half-egg shaped; Taller than a typical convex cap, but shorter than a cylindric cap.


Mushroom Cap Shape

Bullet-shaped; Tall, clyinder-shaped and convex.


Conical Mushroom Cap Shape

Cone-Shaped. Acute and obtuse are used to describe the sharpness of the apex.


Cuspidate Mushroom Cap Shape

Umbonate with a pointy conical apex; Witch-hat shaped. also known as eye-tooth.


Campanulate Mushroom Cap Shape



Umbonate Mushroom Cap Shape

Having a centralized knob or protrusion.


Papillate Mushroom Cap Shape

Umbonate with a nipple-like bump.


Plane Mushroom Cap Shape



Umbilicate Mushroom Cap Shape

a navel-like depression in the center.


Depressed Mushroom Cap Shape

Saucer-shaped; The center is lower than the cap margin.


Infundibuliform Mushroom Cap Shape



Mushroom Cap Shape

Oyster-shaped; Bivalve shell-shaped

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