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Pluteus roseipes Höhn

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

Pluteus roseipes, southrn England

The velvetty cap and rose-flushed slightly velvetty stem of this medium-sized shield mushroom are its most distinctive macroscopic features; however, its scarcity and its preference for shaded woodland sites make it an all too infrequent find.

Distribution

A very rare find in Britain, this wood-rotting mushroom is a rare to occasional find in parts of mainland Europe from ScandinaviaI down to the Mediterranean and northern Spain.

Taxonomic history

This woodland mushroom was described in 1902 by Austrian mycologist Franz Xaver Rudolf von Höhnel (1852 - 1920) who gave it the binomial scientific name Pluteus roseipes by which it is known to this day.

As far as I can determine, Pluteus roseipes has just one synonym of: Pluteus leoninus var. roseipes (Höhn.) E. Ludw.

Etymology

Pluteus, the genus name, comes from Latin and literally means a protective fence or screen - a shield for example! The specific epithet roseipes simply means 'with a reddish stem'.

Identification guide

Cap of Pluteus roseipes

Cap

2 to 6cm across, campanulate, becoming convex and sometimes flattening but with a low broad umbo; densely velvety; dark grey-brown to reddish brown. Flesh white or brownish white.

Pileipellis of Pluteus roseipes

Pileipellis

A subcutis of more or less regular (parallel) elements overlaid with numerous protruding spindle-shaped cells.

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Gills of Pluteus roseipes

Gills

Free; crowded; white or greyish, turning pink as the spores mature.

Basiadia of Pluteus roseipes

Basidia

Clavate, four spored, 6.5-8 x 5.5-7µm.

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Spore of Pluteus roseipes

Spores

Subglobose, smooth, 6.5-8 x 5.5-7µm.

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Spore print

Pale pink.

Stem of Pluteus roseipes

Stem

5 to 8cm long and 3 to 10mm diameter, cylindrical often wider at the base; longitudinally fibrillose and faintly flocculose/velvetty; whitish background flushed with pink; no stem ring.

Odour/taste

Not distinctive or smelling and tasting faintly fruity or, as some say, of radish!

Habitat & Ecological role

In common with other shield mushrooms, this is a wood-rotting (saprobic) fungus that favours very well rotted timber, most often buried in leaf litter. It is most often found in woodlands on alkaline soil.

Season

Fruiting from mid summer to late autumn.

Similar species

Pluteus cervinus is usually larger and has a smooth brown or fawn cap.

Pluteus leoninus is very similar except for its colours! (These two species are closely related.)

Culinary Notes

Pluteus roseipes is not generally considered to be an edible species, and in view of its rarity this mushroom should not be gathered for eating.

Reference Sources

Fascinated by Fungi, Pat O'Reilly 2016.

Alfredo Justo, Andrew M. Minnis, Stefano Ghignone, Nelson Menolli Jr., Marina Capelari, Olivia Rodríguez, Ekaterina Malysheva, Marco Contu, Alfredo Vizzini (2011). 'Species recognition in Pluteus and Volvopluteus (Pluteaceae, Agaricales): morphology, geography and phylogeny'. Mycological Progress 10 (4): 453–479.

Orton, P.D. (1986). British Fungus Flora: Agarics and Boleti. Vol 4. Pluteaceae: Pluteus & Volvariella. Royal Botanic Garden: Edinburgh, Scotland.

Funga Nordica: 2nd edition 2012. Edited by Knudsen, H. & Vesterholt, J. ISBN 9788798396130

BMS List of English Names for Fungi

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 Simon Harding.

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