Mushrooms in a beech forest

Hello Fungi Lovers! Although I spent a lot of time in nature, I haven't come across many mushrooms lately. Last week we went to Kosmaj mountain, a low but very wooded mountain. Kosmaj is known for its many species of mushrooms. And indeed, we placed our tent a little further from the many tourists and famous places of this Šumadija mountain, and in a small area around us, we came across these mushrooms. Here is the gallery.

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My knowledge of mushrooms is very modest, so I do not dare to identify them. Although, I have to admit, after following the posts in this group I can recognize some types of mushrooms, only those that are authentic looking. In any case, I will try to find out the names of some, looking for their pictures on the internet, and you are free to correct me. :)

Are these oyster mushrooms?

This thin one is very sympathetic.

This should be Formes fomentarius, bearing in mind that we were in a beech forest. We (in Serbia) call it the beech hump.

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And when I peeked into the hollow of a beech tree, I found these well-hidden mushrooms.

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And that is that. I hope you liked my gallery and that I managed to find the right name for the mushrooms I came across :)

Much love and happy Fungi Friday💜,
Snežana