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

Plant dingy white or brownish yellow; pear-shaped, or obovate pyriforme, sometimes approaching L. gemmatum in size and shape, but easily distinguished from that species by the surface features of the peridium and the internal hyph�.

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

Sporangia; the first with the outer peridium broken away, � 10.

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 peridium or rind is membranaceous, smooth, or very slightly floccose, and creamy white at first, turning to pale yellowish-brown when the plant is old.

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

Gasteromycetes, in which the hymenium is enclosed in a second case or wrapper, called a peridium, which ruptures when mature, thus releasing the spores.

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

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

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