In Mycena
sect. Filipedes
36 species are known fom Europe. They are Mycena albidoaquosipes Robich, Mycena
aphanes Aronsen & Gulden, M.
arcangeliana Bres., M.
caesiolivida Bres., M.
cicognanii Robich,
M. chlorantha
(Fr.) P. Kumm., M. dobraensis Robich & Hauskn., M. eburneopileata Robich, M.
erianthi-ravennae Robich & Marchetti,
M. favrei Maas
Geest., M. filopes
(Bull.) P. Kumm., M.
flavescens Vel., M. flavofuliginosa Robich, M.
fuscoaquosipes Robich,
M. graminicola
Robich, M. limonia
Maas Geest., M. malafidensis Robich, M. metata
(Fr.) P. Kumm., M.
mirata (Peck) Sacc., M. parvistrobilicola Robich, M.
peyerimhoffii Maire, M. phoenicis-canariensis Robich, M. pinastri Robich, M.
pinus-rigidae Robich, M.
pseudolaevigata Kalamees, M. rapiolens
Favre, M. rebaudengi
Robich, M. rhododendri
Robich, M. secessa Robich, M.
septentrionalis Maas Geest., M. tenuicorticola Robich, M. tenuipes Robich, M.
ticinensis Robich, M. truncimuscicola Robich, M.
urania (Fr.) Quél., M.
xantholeuca Kühner.
Nine of these species have been reported from
Norway: M. aphanes, M. arcangeliana,
M. chlorantha. M. filopes, M. flavescens, M. metata,
M. mirata, M. septentrionalis, and M. urania.
Mycena alexandri Singer is a North American species reported from alpine sites in Europe. Aronsen & Gulden (2007) believed that the Norwegian material was different from M. alexandri and it was given the new name M. aphanes.
Of the 34 European species 20 have been described recently by Robich (2003 a, 2003 b, 2004 b, 2005, 2006 a, 2006 b, 2006 c, 2009 a, 2009 b, 2010 a, 2010 b) and Robich & Hausknecht 2008. The new taxa were obviously based on only one collection or rather limited material. I find it difficult to have an opinion on whether they are acceptable species or not, but most of them are not included in the key below. The section is in great need of extensive phylogenetic investigations.
1. Pileus pure white
to somewhat yellowish, or cream to citrine or ochraceous,
the centre not brownish. Stipe not brownish, nor suffused
with bluish or violaceous shades |
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2. Stipe white or watery
white or whitish grey to grey |
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3. Lamellae reaching
the stipe numbering 8-15, odour absent or indistinctive:
white form of M.
mirata |
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3. Lamellae reaching
the stipe more than 30, odour of iodoform on drying
out or indistinctive or somewhat farinaceous |
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4. Pileus greenish yellow,
olive yellow, olive-grey, cream grey with yellow tint.
Pleurocystidia present: M. erianthi-ravennae |
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4. Pileus yellowish
white, greyish with yellow tint, ochraceous grey.
Pleurocystidia absent: M. xantholeuca |
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2. Stipe dingy citrine.
Pileus dingy citrine to ochaceous. |
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5. Hyphae of the pileipellis
diverticulate: M. peyerimhoffii |
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5. Hyphae of the pileipellis
smooth: M. limonia |
1. Differently characterized |
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6. Stipe with long microscopic
hairs 2-3,5 µm wide: M. rebaudengi |
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6. Stipe not with long
hairs |
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7. Stipe bluish, bluish
grey, violaceous grey to steel blue, at least below
and at least in younger stages |
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8. Pileus with a pronounced
yellow to yellowish olive shade, at least at the margin.
Odour of iodoform when drying out: M.
arcangeliana |
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8. Differently characterized.
Odour not of iodoform |
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9. Pileus bluish, bluish
grey, violaceous grey. |
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10. Stipe 0.5 - 1 mm
wide. Lamellae adnate to somewhat uncinate, at first
white, turning bluish to pallid grey: M.
urania |
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10. Stipe 3 - 4 mm wide.
Lamellae almost free, at first white, turning pink
to dingy flesh-colour: M. caesiolivida |
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9. Pileus not with bluish
colours |
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11. Pileus with a pronounced
yellow to yellowish olive shade, at least at the margin.
Hyphae of the pileipellis 1.8 - 4.5 µm wide:
M. arcangeliana |
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11. Pileus white to
whitish, greyish brown at the centre. Lamellae white.
Spores 6.3 - 7.0 µm long: M. pseudolaevigata |
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11. Pileus cream white,
grey-white, clear grey. Hyphae of the pileipellis
3.5 - 20 µm wide: M. ticinensis |
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7. Stipe without bluish
or violaceous colours, or, in some cases, only with
a weak violaceous reflex |
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12. Lamellae reaching
the stipe numbering 12 - 30 |
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13. Spores cylindrical
or ellipsoid |
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14. Odour strong when
cut or crushed, of raw potatoes or of earth, or raphanoid,
not of iodoform on drying out |
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15. Pileus yellowish-white,
whitish, perl grey, greyish citrine, or more greyish
brown, with or without a yellowish shade. Lamellae
white with yellowish tint, the edge more or less pale
yellow in young specimens. Odour strong, of raw potatoes,
or of earth, or raphanoid:
M. flavescens |
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15. Pileus grey, pale
brown-grey to dark sepia brown. The lamellae white
or grey-white or with a brownish tint. Odour raphanoid:
M. rapiolens |
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14. Odour indistinct
or of iodoform on drying out, or pungent aromatic. |
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16. Basidiomata with
yellowish or greenish tints |
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17. Basidiomata typically
growing on decayed wood. Lamellae tending to turn
pinkish or flesh-colour with age. Odour of iodoform
on drying out: M.
arcangeliana |
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17. Differently characterized.
Lamellae never turning pink. |
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18. Colour
of the pileus tending towards greenish or olive green.
Growing in coastal dunes on poor sandy soil: M.
chlorantha |
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16. Basidiomata differently
characterized |
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19. Cheilocystidia mostly
covered with unevenly spaced, coarse, often curved,
simple to branched excrescences |
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20. Pileus dark sepia
brown to blackish brown. Odour of Pelargonium graveolens.
Most cheilocystidia saccate or shaped like an hour-glass:
M. septentrionalis |
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20. Pileus russet to
tawny, turning more ochraceous with age. Odour of
iodoform on drying out: M.
aphanes |
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19. All cheilocystidia
or the majority covered with evenly spaced, cylindrical,
narrow excrescences |
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21. Pileus brown or
greyish, often with pink tint. Cheilocystidia often
stipitate. Hyphae of the stipe cortex mostly devoid
of swollen terminal cells:
M. metata |
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21. Pileus without pink
tint. Cheilocystidia mostly sessile. Caulocystidia
swollen, clavate or more variously shaped:.............
M. filopes |
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13. Spores broadly ellipsoid
to subglobose |
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22. Pileus and stipe
red brown or dark brown: M. pinus-rigidae |
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22. Pileus clear grey-brown
or cream grey. Stipe translucently grey: M.
graminicola |
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12. Lamellae reaching
the stipe numbering 12 - 16. 4-spored: M.
favrei |
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12. Lamellae reaching
the stipe numbering 8 - 15. Mostly 2-spored. Spores
almost cylindrical: M.
mirata |
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