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

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

The capillitium and fragment of the peridium of the same species, � 380.

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)

In some instances the peridium is almost smooth, and sometimes cracks in areas, inner peridium thin and tough.

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

The peridium blends with the hypothallus below when such structure is recognizable, either directly, when the sporangium is sessile, or by the intervention of a stipe.

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 persistent warts which cover the surface of the peridium are so minute as to appear to the naked eye like scales.

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