Fungi -- Great Britain -- Identification; Mushrooms -- Identification
_General Information_: This fungus was originally placed in
_Tricholoma_, but due to differences in anatomy and the distinctly
coloured and ornamented spores it has been placed along with ‘common
blewits’ _T. personatum_ (Fries) Kummer (or better _L. saeva_ (Fries)
P. D. Orton), in the genus _Lepista_. This genus which is also called
_Rhodopaxillus_, again referring to the pinkish spore-print, is not
found in many of the easily obtainable books. One should look for the
fungus under _Tricholoma_, from which it can be separated easily by
the beautiful colour.
Both the ‘wood blewits’ and ‘common blewits’ have been regularly sold
in markets in England within the last fifty years. They are edible and
considered of high quality. In their fresh state they are easily
recognised, but as they age they become browned and so resemble many
other less desirable fungi.
_Illustrations_: F 17^{d}; Hvass 49; LH 91; NB 125²; WD 12³ (a bit too
pastel).
[Illustration: Plate 42. Fleshy fungi: Spores pale pinkish and borne on
gills]
~Agaricus bisporus~ (J. Lange) Pilát
Common mushroom
_Cap_: width 40-100 mm. _Stem_: width 15-25 mm; length 50-75 mm.
_Description_: Plate 43.
Cap: rounded gradually expanding to become plane, whitish with
numerous brown radiating fibrils and with the margin irregular because
of fragments from the ring which are left there after expansion of the
cap.
Stem: short, cylindrical, smooth, bruising reddish-brown when handled
and with a narrow ring which soon collapses and disappears.
Gills: free, pink at first then purple-brown, narrow and crowded.
Flesh: solid, thick, firm and slowly flushing brownish on cutting.
Spore-print: purple-brown.
Spores: medium-sized, broadly ellipsoid, purple-brown under the
microscope, less than 10 µm long, (6-8 × 5-6 µm).
Marginal cystidia: club-shaped, 10-12 µm at apex.
Facial cystidia: absent.
Basidia: 2-spored.
_Habitat_ & _Distribution_: Frequent on manure heaps, straw heaps, on
road scrapings and around garden plants.
Public-domain text, read in full here on John Shaqi.
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