peridium

American  

[puh-rid-ee-uhm] / pəˈrɪd i əm /

noun

Mycology.

PLURAL

peridea

1. the outer enveloping coat of the fruit body in many fungi.

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peridium British  

/ pəˈrɪdɪəm /

noun

1. the distinct outer layer of the spore-bearing organ in many fungi

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Other Word Forms

• peridial adjective
• peridiiform adjective

Etymology

Origin of peridium

1815–25; < New Latin < German pērídion, diminutive of pḗra wallet; -idium

Example Sentences

The fruit-bodies are of very various shapes, showing a differentiation into an outer peridium and an inner spore-bearing mass, the gleba.

From Project Gutenberg

He does not regard them as genuine asci, but as corresponding more to the peridium of the Gasteromycete� and Myxomycete�.

From Project Gutenberg

"Whether the thread is hollow or solid, simple or branched, free or connected with the peridium or a columella,—these are entirely secondary conditions, depending on the extent and form of the vacuoles."

From Project Gutenberg

Hymenium enclosed in a peridium, ruptured when mature Gasteromycetes.

From Project Gutenberg

The sporangia is very similar to that of S. fusca, cylindrical, peridium fugacious, exposing the reticulate capillitium, but instead of being dark-brown it is a yellowish or rusty-brown color.

From Project Gutenberg