Under Alder, spores smooth, cheilocystidia bottle shaped, so section Naucoria. Spores 8.4-10.1 x 4.9 - 5.7 um.
Some of the cystidia look to have small crystals, so I did consider a smooth Inocybe, but Macroscopically it looks like a Naucoria more.
No significant smell, taste mild. Not hygrophanous.
Naucoria spores are typically a different shape too.
Keying to N. spagneti in Funga Nordica which is apparently rare.
Could it be something else?
Naucoria sp?
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This is a wildlife forum, not a cooking one. Please do not ask for the identification of fungi for edibility or narcotic purposes. Any help provided by forum members is on the understanding that fungi are not to be consumed. Any deaths or serious poisonings are the responsibility of the person eating or preparing the fungus for others. If it is apparent from a post that the fungus is for eating or smoking etc, the post will be deleted and a warning given. For more on our reasons, see the FAQ page.