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1a. Spores
blue-violet in KOH, partly blue in water,
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fruit bodies fresh with blue colours,
dry yellow-greenish
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Amaurodon
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1b.
Spores not blue-violet in KOH and/or in water
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2
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2a. Hymenophore
smooth, hyphae without clamps, but rarely present
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on subicular
hyphae, spores hyalin to pale brownish, globose
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to ellipsoid, basidiome
in KOH not blackish-brown
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Tomentellopsis
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2b. with
other combinations of characteristics, basidiome
in KOH blackish-brown
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3
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3a.
Spores ornaments bifurcate or trifurcate (bicuspid or forked)
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4
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3b.
Spores ornaments echinulate (spines not bifurcate or trifurcate)
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Thelephora (Tomentlla)
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4a.
Hymenophore with hydnoid outgrowths, grey brownish to olivaceous-brownish,
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hyphae with clamps, spores yellowish
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Caldesiella italica
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4b.
with other combinations of characteristics
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5
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5a. Hyphae with
clamps
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6
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5a. Hyphae without
clamps
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7
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6a.
Hymenophore hydnoid, ferrugineous brownish
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Odontia
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6b.
Hymenophore smooth, gray to gray
olivaceous, spores hyalin
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Pseudotomentella (Polyozellus)
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(spores brown > unclear tomentelloid species)
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7a.
Hymenophore with penicillate teeths,
projecting by cystidia-like hyphae,
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rusty to cinnamon
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Odontia fibrosa
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7b.
Hymenophore smooth
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Pseudotomentella (Polyozellus)
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