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Entoloma cetratum (Fr.) M. M. Moser

Phylum: Basidiomycota - Class: Agaricomycetes - Order: Agaricales - Family: Entolomataceae

Entoloma cetratum, UK

Entoloma cetratum grows singly or in small groups on acidic soils in coniferous woodland and sometimes on heathland

Distribution

This woodland pinkgill has been recorded in England, Wales, Scotland and Ireland, where it is fairly common and widespread. Elsewhere in Europe Entoloma cetratum has been reported from northern Scandinavia right down to the Mediterranean. This species also occurs in parts of Asia, Australia and North America.

Entoloma cetratum, Hampshire

Taxonomic history

This attractive little mushroom was described scientifically in 1818 by Elias Magnus Fries, who gave it the scientific name Agaricus cetratus. The currently-accepted scientific name Entoloma cetratum dates from a 1978 publication by Austrian mycologist Meinhard Michael Moser (1924 - 2002).

Synonyms of Entoloma cetratum include Agaricus cetratus Fr., Nolanea cetrata (Fr.) P. Kumm., Rhodophyllus cetratus (Fr.) Quel., Hyporrhodius cetratus (Fr.) J. Schrot., and Latzinaea cetrata (Fr.) Kuntze.

Etymology

The generic name Entoloma comes from ancient Greek words entos, meaning inner, and lóma, meaning a fringe or a hem. It is a reference to the inrolled margins of many of the mushrooms in this genus.

The specific epithet cetratum comes from the Latin cetra or caetra, meaning a small liught shield.

Identification guide

Cap of Entoloma cetratum

Cap

The cap of Entoloma cetratum is conical to convex, sometimes becoming umbonate; pale ochre, honey-brown or reddish brown, becoming paler at the margin; smooth; hygrophanous; translucently striate; 2 to 4cm in diameter; margin not striate.

Pileipellis

A cutis of cylindrical hyphae 4-10μm diameter; clamps absent.

Gills of Entoloma cetratum

Gills

Yellow-ochre at first, becoming pink; adnate-emarginate, moderately spaced; gill edge sterile; cheilocystidia absent.

Basidia

Mainly 2-spored with some 1-spored.

Spores of Entoloma cetratum

Spores

Heterodiametrical with 5 to 8 angles; 9.5-14 x 7-9.5µm.

Show larger image

Spore print

Pale pink.

Stem

Cylindrical, 1.5 - 5cm long x 1-3mm diameter; longitudinally fibrous; concolorous with cap; white at the base.

Odour/taste

Not distinctive.

Habitat & Ecological role

Solitary or in small groups in coniferous and broadleaf woodland among leaf litter amd moss.

Season

Summer and autumn.

Occurrence

Fairly common.

Similar species

There are many brownish mushrooms in the Entoloma genus, including Entoloma conferendum, which is a very common and widespread grassland pinkgill.

Culinary Notes

Entoloma cetratum is of no culinary value.

Reference Sources

Entoloma cetratum (Fr.) M.M. Moser, in H. Gams, Kleine Kryptogamen-Flora 2b/2, ed. 4 (Veerlag-Stuttgart - New York): 206 (1978).

Fascinated by Fungi, Pat O'Reilly 2016.

Knudsen H., Vesterholt J. (eds) Funga Nordica: agaricoid, boletoid and cyphelloid genera - Nordsvamp, 2008

Dictionary of the Fungi; Paul M. Kirk, Paul F. Cannon, David W. Minter and J. A. Stalpers; CABI, 2008

Taxonomic history and synonym information on these pages is drawn from many sources but in particular from the British Mycological Society's GB Checklist of Fungi and (for basidiomycetes) on Kew's Checklist of the British & Irish Basidiomycota.

Acknowledgements

This page includes pictures kindly contributed by David Kelly.

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