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Tomas Linder @yeastgenomix.bsky.social · 8h

Tubifera ferruginosa (and friends). #SlimeMoldSunday

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Tomas Linder @yeastgenomix.bsky.social · 28/09/2026

If it’s purple, I’m just going to assume that it’s Laccaria amethystina #MushroomMonday

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Tomas Linder @yeastgenomix.bsky.social · 27/09/2026

Found all of these during a single walk so I decided to go large this #SlimeMoldSunday

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Tomas Linder @yeastgenomix.bsky.social · 18/09/2026

After a very dry August, the September rains finally brought back #FungiFriday to Stockholm.

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Tomas Linder @yeastgenomix.bsky.social · 12/09/2026

This week it will be a #FungiFriday / #SlimeMoldSunday crossover so it is only fair that I post it on a Saturday.

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Tomas Linder @yeastgenomix.bsky.social · 30/08/2026

I don’t know if there’s a collective noun for the fruiting bodies of the wolf’s milk slime mold - but if not, I’d like to propose “a huddle”. Ergo here’s a huddle of wolf’s milk fruiting bodies from a few weeks ago. #SlimeMoldSunday

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Tomas Linder @yeastgenomix.bsky.social · 23/08/2026

For whatever reason, it has been an exceptional summer for sightings of Fuligo septica around mid-Sweden. Attached is one of the most spectacular specimens I've come across this year – and obviously I had to make a timelapse video of it (see followup post below). #SlimeMoldSunday

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Reposted by Tomas Linder

Dan Willingham @dtwuva.bsky.social · 20/08/2026

New Substack: : Students should only use AI for things that they already know how to do well. dtwuva.substack.com/p/students-s...

dtwuva.substack.com

Students should only use AI for things they already know how to do well.

AI guardrails should protect important mental work

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Tomas Linder @yeastgenomix.bsky.social · 16/08/2026

First encounter with the raspberry slime mold (Tubifera ferruginosa) this year. Hoping for many more encounters before the season is over. #SlimeMoldSunday

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Tomas Linder @yeastgenomix.bsky.social · 10/08/2026

Anyone for #MossGallMonday ? It’s a bit niche, I know.

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Tomas Linder @yeastgenomix.bsky.social · 09/08/2026

A gloriously pink “wolf’s milk” slime mold (Lycogala epidendrum). #SlimeMoldSunday

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Tomas Linder @yeastgenomix.bsky.social · 02/08/2026

An eye-catching specimen of the ”dog’s vomit” slime mold (Fuligo septica) with what appears to be its emotional support twig. #SlimeMoldSunday

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Tomas Linder @yeastgenomix.bsky.social · 31/07/2026

Some tiny staghorn fungi (I’m guessing Calocera cornea) that I found the other week. #FungiFriday

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Tomas Linder @yeastgenomix.bsky.social · 29/07/2026

This why I believe genAI is essentially doomed: deliberate pollution of the scientific literature will increasingly corrupt future AI models until scientific truth becomes unknowable. Hang on to your pre-2022 textbooks!

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Tomas Linder @yeastgenomix.bsky.social · 26/07/2026

A few weeks ago I finally managed to catch Stemonitis in the act as its fruiting bodies (sporocarps) were maturing. Some light rain had smooshed the sporocarps so I didn’t get the classic upright sporocarp bundles unfortunately. Just five hours later they had already turned brown. #SlimeMoldSunday

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Tomas Linder @yeastgenomix.bsky.social · 24/07/2026

My first encounter with what looks like the “eyelash fungus” Scutellinia scutellata. Can’t decide whether it’s more Lovecraftian or Cronenbergian. #FungiFriday

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Reposted by Tomas Linder

Paul Kirschner @paulkirschner.bsky.social · 19/07/2026

Alpha School May Be Efficient. But Is It Education? Alpha School should be regarded as a possibly promising educational experiment and not as evidence that AI can replace teachers or make conventional schooling obsolete.

kirschnered.nl

Alpha School May Be Efficient. But Is It Education?

Alpha School should be regarded as a possibly promising educational experiment and not as evidence that AI can replace teachers or make conventional schooling obsolete.

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Tomas Linder @yeastgenomix.bsky.social · 19/07/2026

It's always a special occasion when you find a fresh specimen of the "dog's vomit" slime mold (Fuligo septica) – especially since it's still on the move and will be elsewhere in a few hours. (See time-lapse video in the follow-up post below if you don't believe me.) #SlimeMoldSunday

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Tomas Linder @yeastgenomix.bsky.social · 12/07/2026

This year’s first encounter with Ceratiomyxa porioides. #SlimeMoldSunday

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Tomas Linder @yeastgenomix.bsky.social · 05/07/2026

Last week I came across what looks like Hemitrichia decipiens. #SlimeMoldSunday

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Tomas Linder @yeastgenomix.bsky.social · 03/07/2026

A closer look at what I’m guessing is Orbilia xanthostigma. #FungiFriday

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Tomas Linder @yeastgenomix.bsky.social · 01/07/2026

First moss gall of the summer.

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Tomas Linder @yeastgenomix.bsky.social · 28/06/2026

Let’s start by decoupling critical thinking from cognitive skills in general. Any tool that allows cognitive outsourcing (genAI, spellchecker, GPS, pocket calculator) will lead to skill erosion. Also, most of us TRY to teach critical thinking but learners tend to be unenthusiastic to say the least.

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Tomas Linder @yeastgenomix.bsky.social · 28/06/2026

For this week’s #SlimeMoldSunday I have developed a serious case of Stemonitis (geddit?)

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Tomas Linder @yeastgenomix.bsky.social · 23/06/2026

“Hah! My perfect camouflage makes me practically invisible…”

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Tomas Linder @yeastgenomix.bsky.social · 22/06/2026

These are thalli of the lichen Candelariella coralliza. Each thallus is barely a tenth of a millimeter in diameter. I was a bit impatient to get the shot, hence some slight blurriness (and requiring a 30-second exposure doesn’t help).

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Tomas Linder @yeastgenomix.bsky.social · 22/06/2026

Revisiting the same Stereocaulon lichens with a Canon MP-E 65 mm macro lens. Looks better - and not even using full magnification.

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Tomas Linder @yeastgenomix.bsky.social · 19/06/2026

The two issues that come to my mind are that (1) research universities were never really about learning and (2) generative AI is fast approaching its true singularity: increasingly being trained on its own output while users increasingly lack the competence to critically evaluate the results.

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Tomas Linder @yeastgenomix.bsky.social · 14/06/2026

My first encounter with a “wolf's milk” slime mold this year. And just in time for #SlimeMoldSunday too!

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Tomas Linder @yeastgenomix.bsky.social · 12/06/2026

The always delightful (and supposedly delicious) sulfur polypore fungus AKA “chicken of the woods” for this week’s #FungiFriday

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Tomas Linder @yeastgenomix.bsky.social · 11/06/2026

Ok, here's my very first list of absolutely essential reading for teachers in higher education (to be updated whenever I feel like it): Obviously “Why Don't Students Like School?” by the one and only @dtwuva.bsky.social “Seven Myths About Education” by @daisychristo.bsky.social

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Tomas Linder @yeastgenomix.bsky.social · 29/05/2026

Some real Alexander Fleming vibes here! #FungiFriday

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Tomas Linder @yeastgenomix.bsky.social · 29/05/2026

Biannual indoor spore sampling of my apartment just in time for #FungiFriday ! (It's for a lab exercise – but always good to keep track of what's floating around.)

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Tomas Linder @yeastgenomix.bsky.social · 22/05/2026

With bird cherry pocket season in full swing, I will shamelessly continue my celebration of the causative agent: the yeast Taphrina padi. #FungiFriday