Fungi -- Great Britain -- Identification; Mushrooms -- Identification
[Illustration: Plate 56. Fleshy but firm fungi: Spores pale-coloured and
borne on club-shaped fruit-bodies]
~Clavaria vermicularis~ Fries
White spindles
_Cap_: absent. _Fruit-body_: width 6-10 mm; length 50-85 mm.
_Description_: Plate 56.
Simple or very rarely branched, but not forked below the soil-level,
densely tufted, spindle-shaped, pure white with sharp, often slightly
brownish, tips, when old it is wavy, often twisted, compressed and
fragile.
Stem: absent.
Flesh: whitish.
Spore-print: white.
Spores: small, pip-shaped, smooth, hyaline under the microscope, 4-5 ×
3 µm in size, and not becoming bluish grey in iodine solutions.
Cystidia: absent.
_Habitat_ & _Distribution_: Common in autumn amongst grass in fields,
less frequent in woods.
_General Information_: _Clavulinopsis fusiformis_ (Fries) Corner,
‘Golden spindles’ is similar to _C. vermicularis_, but forms dense
tufts of canary-yellow, very fragile clubs joined in 2’s or 3’s below
the soil level; the spores are also slightly different, being almost
globose, hyaline under the microscope and 5-7 µm in diameter.
_Clavaria fumosa_ Fries is similar to _C. vermicularis_ and forms
tufts of very fragile mouse-grey clubs with brownish tips; it produces
elongate ellipsoid spores measuring 6-8 × 3-4 µm which are hyaline
under the microscope. _C. vermicularis_ and _C. fumosa_ differ from
_Clavulinopsis_ in hyphal construction, but the differences are rather
difficult to demonstrate to the beginner. _Clavulinopsis helvola_
favours similar habits to _C. fusiformis_ and although yellow in
colour differs in the more orange-yellow colouration, but more
particularly in the spores being rounded, 5-6 µm in diameter with
large angular spines.
The earth-tongues, i.e. members of the family _Geoglossaceae_ which
are also found in pastures belong to an unrelated group of fungi, the
Ascomycetes. If the clubs are crushed and examined under the
microscope rows of sacs (asci) containing long thread-like ascospores
are found--no basidia are to be seen.
_Illustrations_: _Clav. fusiformis_--WD 104⁹. _C. vermicularis_--WD
104¹⁰. _C. fumosa_--Hvass 303; WD 104¹¹. _Clav. helvola_--Hvass 300;
WD 105¹.
[Illustration: Plate 57. Club-shaped and coral fungi]
~Clavulinopsis corniculata~ (Fries), Corner (p. 171).
_Cap_: absent. _Fruit-body_: complex; width 20-30 mm; length 20-40 mm.
_Description_: Plate 57.
Fruit-body: shape depending on the length of grass in which it grows
but always branching strongly from its base, composed of a dense
compact tuft of egg-yellow or orange-tawny branches which are either
irregular or of equal length and so they form a flattened top to the
fruit-body complex, the branchlets are slender, forked 2- or 3-times,
with their apices narrowed or curved.
Stem: very downy at the base.
Flesh: pale yellow.
Spore-print: white.
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