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; see -idium

Example Sentences

As the warts fall off they leave the surface of the denuded peridium somewhat dotted or slightly reticulated.

From Student's Hand-book of Mushrooms of America, Edible and Poisonous by Taylor, Thomas

Schrader redefined the genus; opposed Persoon's view as to the capillitial nature of the net, and separated the genus Dictydium, but by imperfect limitations,—in fact, chiefly because of the more completely evanescent peridium.

From The North American Slime-Moulds A Descriptive List of All Species of Myxomycetes Hitherto Reported from the Continent of North America, with Notes on Some Extra-Limital Species by MacBride, Thomas H. (Thomas Huston)

Hypothallus none; peridium checkered with pale reticulations.         i.

From The North American Slime-Moulds A Descriptive List of All Species of Myxomycetes Hitherto Reported from the Continent of North America, with Notes on Some Extra-Limital Species by MacBride, Thomas H. (Thomas Huston)

The hyph� are thicker than the spores and branched, continuous with the slightly cellular base, and forming a columella inside the peridium.

From Student's Hand-book of Mushrooms of America, Edible and Poisonous by Taylor, Thomas

Capillitium sub-compact, equal, adnate to the peridium on all sides; spores pedicillate, brownish.

From Student's Hand-book of Mushrooms of America, Edible and Poisonous by Taylor, Thomas