Peter Braubach
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peterbraubach.bsky.social
Peter Braubach
@peterbraubach.bsky.social
Thoracic pathologist, with a focus on ILD and transplant. Dad of 2 👱👱 (03/18, 08/21). Bakes bread 🍞. Cares for a garden 🌻. Bikes to work 🚲. Biodiversity enthusiast. Mainly thinking about lichens here.
Reposted by Peter Braubach
I was photographing a globular springtail (Dicyrtomina saundersi) in the garden, when a juvenile "elongate" springtail came scurrying into view. Remarkably, they're both reasonably in focus with this single shot. Two for the price of one! #collembola #mesofauna #macro #photograph
November 10, 2025 at 5:05 PM
Reposted by Peter Braubach
【気まぐれ顕微鏡写真】

シイタケの菌糸。クランプコネクションがある。
November 10, 2025 at 11:56 AM
This nicely shows the different dimensions of lichens!
November 10, 2025 at 10:03 AM
Tonight I tried to replicate the "on-slide" test for usnic acid published by B. McCune 2024 with adaptations. Results look promising - further evaluation is necessary. #lichen

E. prunastri has a strong red reaction. Probably second compound reacting brown?

P. grisea is negative.

L. saligna + 1/
November 6, 2025 at 8:59 PM
Reposted by Peter Braubach
Lately we have been working on the interactions of #lichens and #mites. This has been super exciting and the first two publications with our findings are now out. Here a quick summary (thread).
November 5, 2025 at 5:53 PM
A reason more for me to take the kids to museums and talk with them about art!

The last time we were we talked about medieval altar pieces in terms of comic strips and hidden picture puzzles, deviation from reality in impressionism and why people paint (nude) humans.
Killing the dreams and wonders of children may be the greatest crime AI techbros have commited.
I spotted this on Mastodon and I find it horrible, not least for the speed with which this has happened.
November 4, 2025 at 3:20 PM
Flavoplaca citrina agg. #lichen - I think - on siliceous rock (ballast from rarely used industrial railway).
November 3, 2025 at 9:34 PM
Fossils and #lichen on a Hannover playground. I think this is likely Protoblastenia rupestris and Polyozosia albescens.
November 2, 2025 at 8:40 PM
Mature and immature spores of the #lichen Amandinea punctata.
October 31, 2025 at 10:12 PM
Jamesiella anastomosans is one of my current #lichen favorites!
October 31, 2025 at 5:50 PM
I have a mystery #lichen I've been working on for the last 3 days and would love some input on.

Its on unshaded mineral rich soil between Baeomyces rufus (sterile) and early colonizer moss on the edge of a earth heap.
Small black apothecia on brown thallus. I am thinking Micarea sp.; however... 1/4
October 31, 2025 at 10:04 AM
We have this nice bubble bath toy. Unfortunately it stopped working and the screws seem to cemented in. I cannot open it 😭.
October 31, 2025 at 9:32 AM
Reposted by Peter Braubach
It’s always amazing to me that so many endangered species have the word “common” in their name.

Really hammers home how quickly these conservation crises can arise. These animals were common as recently as when we were naming stuff!
October 29, 2025 at 12:15 PM
Vezdaea leprosa (so I was told) #lichen from soil between ballast on a rarely used industrial railway track.
October 29, 2025 at 11:03 AM
Arthonia radiata #lichen - a typical early colonizer on a small twig of acer sp.
October 28, 2025 at 10:49 PM
I re-printed the ballstage base in TPU. PLA on PLA was too slippery. Also I bought some lead balls for ballast. The prototype is filled with sand which sometimes does not shift and the stage stays unstable.

Eventually I want to cover the base in cork to pin samples.
#3Dprint #microscopy
October 28, 2025 at 9:31 PM
A prototype for a 3d printed ball stage for the stereomicroscope. Turned out larger than I expected it to be - does not run as smoothly as the commercial one - but I'm happy for the first try. It rotates around a centre 15 mm above the plate
October 28, 2025 at 5:44 PM
Some technicalities. I had good experience with Olympus compatible c-mount camera adapters from China/Aliexpress to build up confidence in "third party" optics.

Now I have tried new eyepieces for my stereo microscope. A pair of 10x/25 to replace my 10x/22. These work well*
October 27, 2025 at 2:07 PM
Placynthiella dasaea #lichen (I think). On lignum (broken fence in an old garden). In contrast to P. icmalea with soredia.
October 18, 2025 at 9:21 PM
Agonimia tristicula #lichen on bryophytes over hard limestone.
I still have to find this one with perithecia, my sample is unfortunately sterile.
October 18, 2025 at 8:42 PM
Lecidea grisella #lichen on vertical surface of a playground wall.
October 16, 2025 at 7:02 PM
Reposted by Peter Braubach
Happy world hagfish day, nerds!

Your car has just been crushed by hagfish: Frequently Asked Questions – Southern Fried Science
Your car has just been crushed by hagfish: Frequently Asked Questions
Wait, what? Earlier today, Oregon State Police reported that a truck carrying a shipment of live hagfish overturned, spilling its slimy cargo all over the highway and damaging at least one vehicle.…
www.southernfriedscience.com
October 15, 2025 at 11:49 PM
Reposted by Peter Braubach
I'm delighted that we have a whole range of talks from our Northern Ireland Botanical Skills Project taking place this winter on Tuesday evenings.

Want to learn more about conifers? Rushes? Clubmosses? Hawthorns? Plant Pathogenic Fungi? ROBOTS??

See them all here:
bsbi.org/botanical-sk...
Botanical Skills Webinars – Botanical Society of Britain & Ireland
bsbi.org
October 14, 2025 at 1:30 PM
I think this is Lecania erysibe #lichen on a limestone boulder.
Some small yellow nightmare parasitizes on the green blastidiate crust (however I have not collected this one yet).
October 13, 2025 at 9:08 PM
Lecidella stigmatea #lichen (I think) on a playground wall.
October 13, 2025 at 8:55 PM