Piotr Gąsiorowski
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piotrgasiorowski.bsky.social
Piotr Gąsiorowski
@piotrgasiorowski.bsky.social
Linguist, with a general interest in science and nature. Poland.
Opinions expressed here are my own and strictly private.
If anyone wants to use my photos, obey the terms of CC BY-NC 4.0.

https://www.inaturalist.org/observations?user_id=piotr_gasiorowski
An oak branch with lichens and (other) fungi. Note the isidiate, lettucey Melanohalea exasperatula, fertile Physcia adscendens, and yellow brain fungus (Tremella mesenterica). Kicin, Wielkopolska (western Poland).
#fungi #lichens #grzyby #porosty #mycology #lichenology #fungifriends #lichenfriends
November 12, 2025 at 5:43 PM
Będą flaczki z dzikich boczniaków.
November 12, 2025 at 4:57 PM
Trametes versicolor (EN turkeytail, PL wrośniak różnobarwny) and T. hirsuta (EN hairy bracket, PL wrośniak szorstki) on the same stump. Kicin, Wielkopolska (western Poland).
#fungi #grzyby #mycology #fungifriends
November 12, 2025 at 4:56 PM
Heterotrichia ferruginea. Kicin, Wielkopolska (western Poland).
#slimemoulds #slimemolds #śluzowce #Myxogastria #Eumycetozoa #Amoebozoa #myxofriends
November 12, 2025 at 2:52 PM
Co jeszcze kojarzymy z nazwiskiem Penrose'a?
November 12, 2025 at 10:03 AM
Viscum album (mistletoe) on hawthorn. Czerwonak, Wielkopolska (western Poland).
#plants #rośliny #botany
November 11, 2025 at 6:32 PM
Protoparmeliopsis muralis (stonewall rim lichen), usually one of the first species lichen enthusiasts learn to recognise. On concrete, Koziegłowy, Wielkopolska (wetern Poland).
#lichens #porosty #fungi #grzyby #lichenology #mycology #lichenfriends #fungifriends
November 11, 2025 at 4:10 PM
Juvenile Arcyria/Heterotrichia sp. accompanied by clausiliid snails (note their sinistrally coiled shells). Kicin, Wielkopolska (western Poland).
#slimemoulds #slimemolds #śluzowce #Eumetazoa #Amoebozoa #snails #ślimaki #Gastropoda #Metazoa
November 11, 2025 at 3:41 PM
Trichia varia. Kicin, Wielkopolska (western Poland).
#slimemoulds #slimemolds #śluzowce #Myxogastria #Eumycetozoa #Amoebozoa
November 10, 2025 at 4:50 PM
Maturing Badhamia utricularis (hanging slime). Kicin, Wielkopolska (western Poland).
#slimemoulds #slimemolds #śluzowce #Myxogastria #Eumycetozoa #Amoebozoa
November 10, 2025 at 4:48 PM
Kuehneromyces mutabilis (EN sheathed woodtuft, PL łuskwiak zmienny). Kicin, Wielkopolska (western Poland).
#fungi #mushrooms #grzyby #mycology #fungifriends
November 10, 2025 at 4:44 PM
Baeospora myosura on spruce cones. Zielonka Forest, Wielkopolska (western Poland).
#fungi #grzyby #mycology #fungifriends
November 9, 2025 at 5:48 PM
Cladonia coniocraea, Evernia prunastri, and Punctelia subrudecta. Zielonka Forest, Wielkopolska (western Poland).
#lichens #porosty #fungi #grzyby #lichenology #mycology #lichenfriends #fungifriends
November 9, 2025 at 5:46 PM
As other #ferns die down for winter, Polypodium vulgare flourishes. Zielonka Forest, Wielkopolska (western Poland).
#paprocie #Polypodiophyta #Pteridophyta #pteridology
November 9, 2025 at 5:44 PM
The huge plasmodium I started watching the other day can be given a name at last. One fragment of it is already morphing into sporocarps. It's Badhamia utricularis, the most beautiful specimen I have ever found. Kicin, Wielkopolska (western Poland).
#slimemoulds #śluzowce #Myxogastria #Amoebozoa
November 8, 2025 at 2:22 PM
Nawrocki zawetował ustawę o utworzeniu Parku Narodowego Doliny Dolnej Odry.
Słowo "prezydent"nie przejdzie mi przez gardło w przypadku tego indywiduum.
November 7, 2025 at 6:15 PM
A magnificent plasmodium (to be IDed later) on a decaying log. Kicin, Wielkopolska (western Poland).
#slimemoulds #slimemolds #śluzowce #Myxogastria #Eumycetozoa #Amoebozoa
November 6, 2025 at 5:30 PM
A Physarum/Badhamia species (not really identifiable from these photos). Zielonka Forest, Wielkopolska (western Poland).
#slimemoulds #slimemolds #śluzowce #Myxogastria #Eumycetozoa #Amoebozoa
November 4, 2025 at 9:33 PM
Galerina marginata (EN funeral bell, PL hełmówka jadowita). This innocent-looking mushroom contains amatoxins and is as dangerous as the deathcap (Amanita phalloides). Zielonka Forest, Wielkopolska (western Poland).
#fungi #mushrooms #grzyby #mycology #fungifriends
November 4, 2025 at 7:03 PM
Pleurotus ostreatus (EN oyster mushroom, PL boczniak ostrygowaty). Zielonka Forest, Wielkopolska (western Poland).
#fungi #mushrooms #grzyby #mycology #fungifriends
November 4, 2025 at 6:45 PM
Odczekawszy chwilę po Zaduszkach, poczytajmy sobie o umieraniu i zdychaniu jako problemie semantycznym i etymologicznym.
eksperymentmyslowy.pl/2024/07/21/t...
November 4, 2025 at 10:58 AM
It is not the first time I have found this slime (or something indistinguishable from it) on a living tree. This one grew on an oak branch.

The only thing I'm reasonably sure of is that it's Badhamia sp.
November 2, 2025 at 4:14 PM
A mix of Cladonia species. Kicin/Czerwonak, Wielkopolska (western Poland). Photo 4: C. phyllophora.
#lichens #porosty #fungi #grzyby #lichenology #mycolofy #lichenfriends #fungifriends
November 1, 2025 at 7:03 PM
Peltigera rufescens and Cladonia arbuscula. Kicin/Czerwonak, Wielkopolska (western Poland).
#lichens #porosty #fungi #grzyby #lichenology #mycolofy #lichenfriends #fungifriends
November 1, 2025 at 7:02 PM
Tulostoma fimbriatum species complex (EN fringed stalked puffball, PL berłóweczka frędzelkowata) and Suillus luteus (EN slippery jack, PL maślak zwyczajny). Kicin/Czerwonak, Wielkopolska (western Poland).
#fungi #mushrooms #grzyby #mycology #fungifriends
November 1, 2025 at 7:01 PM