A hymenium is a layer of microscopic spore-bearing cells that covers the surface of gills.
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Similar structures called cystidia often occur within the hymenium of the Basidiomycota.
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The stem cuticle is made of clusters of cystidia similar to those found in the hymenium.
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The purpose of the staggered basidia sizes is to facilitate the release of spores from the hymenium.
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Scanning electron micrograph of the hymenium showing the warty spores with the prominent germ pore.
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The asci are present in the hymenium layer.
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The spore-bearing hymenium, the outermost layer of cells, contains asci interspersed with sterile cells called paraphyses.
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The first generation basidia are the most protuberant, and extend out the greatest distance from the surface of the hymenium.
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Setae are a kind of unusual cystidia unique to the family Hymenochaetaceae, and, in F. ellipsoidea, are found in the hymenium.
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More examples
Spore-bearing layer of cells in certain fungi containing asci or basidia
The hymenium is the tissue layer on the hymenophore of a fungal fruiting body where the cells develop into basidia or asci, which produce spores. ...
The spore-bearing layer of the fruit-body, bearing asci in ascomata, basidia in basidiomata, and conidia in pycnidia or acervuli. pl. hymenia. adj. hymenial.
A palisade-like layer of asci or basidia, including any sterile cells, such as basidioles, paraphyses, or cystidia. (Pl. hymenia.) (15)
The surface of a fruiting body on which sexually produced spores are borne in asci (Ascomycota) or on basidia (Basidiomycota).