Fungi -- Great Britain -- Identification; Mushrooms -- Identification
_General Information_: This fungus is easily recognised by the very
pale uniform colour, the colour of the spore-print, silky umbonate cap
and small size. The cortina connects the cap-margin and the stem and
consists of a cobwebby structure which collapses at maturity.
A violet coloured variety, var. _lilacina_ Gillet is frequently found,
in fact, even accompanying var. _geophylla_; it differs only in the
lilac-colour of the cap and stem. _I. geophylla_ is a member of the
very large genus _Inocybe_, further members of which will be dealt
with later (see p. 238).
The genus is well defined with dull-yellow spore-print, well
differentiated sterile cells on the gill-edge (and often on the
gill-face) and the cobweb-like veil, or cortina, stretching from the
cap-margin to the stem and easily observed in young specimens. The
genus is split into three distinct groups: those with smooth spores,
those with nodulose spores and those with subglobose spores ornamented
with long projections. _I. geophylla_ is included in the first group.
The group which includes the nodulose-spored members has been elevated
to the rank of genus by some authors, i.e. _Astrosporina_--a name
referring to the spore-shape eg., _I. asterospora_.
_Illustrations_: F 13a (too blue); LH 155; NB 139⁵; WD 65⁴.
[Illustration: Plate 21. Fleshy fungi: Spores dull brown and borne on
gills]
~Laccaria laccata~ (Fries) Cooke
Deceiver
_Cap_: width 12-28 mm. _Stem_: width 4-8 mm; length 15-60 mm.
_Description_:
Cap: hygrophanous, reddish brown or brick-colour becoming ochraceous
on drying, but can be rapidly returned to the original colour by
placing on the top a drop of water which is rapidly absorbed; fragile,
convex at first then flattened or depressed about centre, smooth or
surface scaley, striate at margin when moist.
Stem: similarly coloured to the cap, fibrous, cylindrical, tough and
usually with white woolly base.
Gills: adnate with or without a decurrent tooth, thick, distant and
pinkish or pale reddish-brown, powdered with white when mature.
Flesh: red-brown, soft in the cap and fibrous in the stem.
Spore-print: pure white.
Spores: medium sized, hyaline under the microscope and spherical, 7-8
µm in diameter and beautifully spiny.
Marginal and facial cystidia: absent.
_Habitat_ & _Distribution_: Common in troops in woodland, copses, on
heaths; in fact it may be found in nearly all possible habitats.
Public-domain text, read in full here on John Shaqi.
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