Entoloma sphagnorum

Definition
Entoloma sphagnorum is a species of agaric fungus belonging to the family Entolomataceae. It is recorded as a pink‑spored mushroom that typically inhabits sphagnum‑dominated wetland ecosystems.

Overview
The species is known from boreal and temperate regions where sphagnum mosses form peat bogs and other moist habitats. Like other members of the genus Entoloma, it produces fruiting bodies (mushrooms) with a distinctive pink spore print. Detailed distribution records are limited, and the species is not commonly referenced in major fungal field guides.

Etymology / Origin
The specific epithet sphagnorum derives from the Latin genitive plural of Sphagnum, a genus of moss commonly known as peat moss. The name therefore indicates an ecological association with sphagnum mosses.

Characteristics

• Taxonomy:

  • Kingdom: Fungi
  • Division: Basidiomycota
  • Class: Agaricomycetes
  • Order: Agaricales
  • Family: Entolomataceae
  • Genus: Entoloma
  • Species: E. sphagnorum

• Macroscopic features:

  • Cap: Typically small to medium (2–5 cm diameter); shape ranging from convex to broadly umbonate; surface may be smooth, often pale to brownish or grayish hues.
  • Gills: adnexed to sinuate, initially white, turning pinkish as spores mature.
  • Stipe: Slender, cylindrical, often the same color as the cap or slightly lighter; may lack a prominent ring.
  • Spore print: Pink to salmon‑pink, characteristic of the genus.

• Microscopic features:

  • Spores: Angular, typically 6–9 µm in length, with a smooth to faintly ornamented surface.
  • Basidia: Usually four‑spored.
  • Cheilocystidia: Presence and morphology have not been thoroughly documented for this species.

• Ecology:

  • Saprotrophic, decomposing organic material within sphagnum mats and peat.
  • Fruitings are usually observed in late summer to early autumn, coinciding with periods of adequate moisture.

• Edibility:

  • The edibility of E. sphagnorum is not well documented; many Entoloma species are considered inedible or potentially toxic, and therefore it is not recommended for consumption.

Accurate information is not confirmed for several detailed morphological and ecological aspects due to the paucity of published monographs or peer‑reviewed studies specifically addressing Entoloma sphagnorum.

Related Topics

• Entoloma – The genus containing over 1,500 species of pink‑spored mushrooms, many of which share similar macroscopic traits.
• Sphagnum moss – A genus of mosses that dominate peat bogs and play a crucial role in wetland ecology; often associated with specialized fungal communities.
• Peat bog ecosystems – Wetland habitats characterized by water‑logged, acidic soils rich in sphagnum; host to a distinct assemblage of fungi, plants, and animals.
• Pink‑spored agarics – A group of mushrooms that produce pink to salmon‑colored spore prints, encompassing several families beyond Entolomataceae.

Note: The information presented reflects the extent of current verified literature. Further taxonomic revision or ecological study may refine the understanding of this species.