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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. In some species all of the cells of the hymenium develop into basidia or asci, while in others some cells develop into sterile cells called cystidia (basidiomycetes) or paraphyses (ascomycetes). Cystidia are often important for microscopic identification. The subhymenium consists of the supportive hyphae from which the cells of the hymenium grow, beneath which is the hymenophoral trama, the hyphae that make up the mass of the hymenophore.
The position of the hymenium is traditionally the first characteristic used in the classification and identification of mushrooms. Below are some examples of the diverse types which exist among the macroscopic Basidiomycota and Ascomycota.
In agarics, the hymenium is on the vertical faces of the gills.
In boletes and polypores, it is in a spongy mass of downward-pointing tubes.
In puffballs, it is internal.
In stinkhorns, it develops internally and then is exposed in the form of a foul-smelling gel.
In cup fungi, it is on the concave surface of the cup.
In teeth fungi, it grows on the outside of tooth-like spines.
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. In some...
ascocarps, such as truffles, are termed hypogeous. The structure enclosing the hymenium is divided into the types described below (apothecium, cleistothecium,...
basidiomycete, the multicellular structure on which the spore-producing hymenium is borne. Basidiocarps are characteristic of the hymenomycetes; rusts and...
the cap (margin) has fine hairs. The hymenium has hexagonal pores and is cream to brown in color. The hymenium is decurrent in shape. The stipe is central...
conditions. A hymenium is a layer of microscopic spore-bearing cells that covers the surface of gills. In the nongilled mushrooms, the hymenium lines the...
Microglossum in that the fertile hymenium in Nothomitra is not flattened as in Microglossum. Furthermore, the hymenium in Nothomitra is distinctly free...
litter may cause a mottled color); it may become brownish with age. The hymenium is folded into decurrent ridges (false gills) and cross-veins, which deepen...
Agaricus bisporus Mycological characteristics Gills on hymenium Cap is convex Hymenium is free Stipe has a ring Spore print is brown Ecology is saprotrophic...
growth makes the hymenium convex with the asci facing towards the outer side. Because of the unequal growth of the surface of the hymenium, it becomes folded...
Parasola plicatilis Mycological characteristics Gills on hymenium Cap is convex or depressed Hymenium is free Stipe is bare Spore print is black Ecology is...
Stropharia rugosoannulata Mycological characteristics Gills on hymenium Cap is convex or flat Hymenium is adnate Stipe has a ring Spore print is purple-brown...
closely related to Craterellus tubaeformis. Its hymenium is usually orange or white, whereas the hymenium of C. tubaeformis is grey. C. lutescens is also...
stipe (stem), and a form resembling a Hydnum—characterized by a teeth-like hymenium, rather than gills or pores on the underside of the cap. Fruit bodies growing...
Pleurotus ostreatus Mycological characteristics Gills on hymenium Cap is offset Hymenium is decurrent Stipe is bare Spore print is white Ecology is saprotrophic...
Grifola frondosa Mycological characteristics Pores on hymenium Cap is offset or indistinct Hymenium is decurrent Stipe is bare Spore print is white Ecology...
Ganoderma tsugae Mycological characteristics Pores on hymenium Cap is flat Hymenium is adnate Stipe is bare Spore print is brown Ecology is saprotrophic...
elements (filled with oily, resinous substances), which can come into the hymenium as gloeocystidia. The basidia are 25–40 μm long and 5–7 μm wide, contain...
Mycological characteristics Glebal hymenium No distinct cap Hymenium attachment is not applicable Lacks a stipe Ecology is mycorrhizal Edibility is choice...
Heinrich Friedrich Link reported his observations of the structure of the hymenium (the fertile spore-bearing surface) in 1809, but misinterpreted what he...
Mycological characteristics Smooth hymenium No distinct cap Hymenium attachment is not applicable Lacks a stipe Spore print is white Ecology is parasitic...
Morchella conica Mycological characteristics Smooth hymenium Cap is conical Hymenium attachment is not applicable Stipe is bare Spore print is cream Edibility...
Gyromitra esculenta Mycological characteristics Smooth hymenium Cap is convex Hymenium attachment is not applicable Stipe is bare Spore print is yellow...
Armillaria Mycological characteristics Gills on hymenium Cap is convex Hymenium is adnate Stipe has a ring Spore print is white Ecology is parasitic Edibility...
ascomycetes—is a cup-shaped fruit body that is often macroscopic and holds the hymenium, a layer of tissue containing the spore-bearing cells. The fruit bodies...
Panaeolus foenisecii Mycological characteristics Gills on hymenium Cap is convex Hymenium is adnexed Stipe is bare Spore print is blackish-brown Ecology...
Coprinellus disseminatus Mycological characteristics Gills on hymenium Cap is convex Hymenium is adnate Stipe is bare Spore print is black Ecology is saprotrophic...
containing pollen. In ascomycetous fungi, locules are chambers within the hymenium in which the perithecia develop. "loculus". Oxford Dictionaries. Archived...
Lactarius deliciosus Mycological characteristics Gills on hymenium Cap is depressed Hymenium is decurrent Stipe is bare Spore print is tan Ecology is mycorrhizal...
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