Continuing this nested thread about #marine #lichens. Collemopsidium foveolatum (below) can be confused with less common C sublitorale, which also grows on shells. But perithecia of latter are emergent, not immersed. Both occur on these #barnacles, making difference easier to see. Ormsary, Scotland.

Another new species! Is species diversity higher in our stream in July? Campylospora chaetocladia.

A fuzzy photo but I'm excited! My first find of Anavirga dendromorpha. The London accumulate points from the bottom teo arms were present but receding from focal plane. North Devon. July sample.

Gall of the week is caused by the fungus Protomyces macrosporus, an ascomycete, on many species of umbellifers, Apiaceae. Photo from BPGS website, photographer unknown.

Size matters - Tetracladium breve looks very similar to T. setigerum, its just much smaller. You can see it next to the larger T. marchalianum spore in the 1st image. The second image shows a T. setigerum in the same scale. #AquaticHyphomycetes

A second Irish site for Peronospora polygoni today on nice grassland managed by @donnarainey4.bsky.social Ground disturbed by cattle is always so interesting, with a rich array of little annuals #FungiFriends #WildPlantDisease

Much of my garden is overrun with ground elder at the moment, so I have been admiring it. I found a couple of fungi living on it - Mycosphaerella podagrariae on the leaves and Protomyces macrospora on the stems.

Podosphaera parietariae, a powdery mildew on Pellitory-of-the-wall (Parietaria judaica), found yesterday in Norwich near to the cathedral. Even though the host plant is common around the city I've only seen this mildew on one stretch of it (and there are only 3 locations on the county database).

Fans of spindly, hard to identify, bugs rejoice, for the Dicyphus species are now included in the Heteroptera of Bedfordshire slides www.flickr.com/photos/runne...

Pop Goes the Water Bear: I've written a post about Sorochytrium milnesiophthora - a chytrid fungus that infects tardigrades, and how their water bear-slaying might actually be helping other microscopic animals that live on the surface of lichens. 🧪 dailyparasite.blogspot.com/2026/05/soro...

Reed Mat Disco, Trichobelonium kneiffii. On a dead stem of Common Reed, Phragmites australis. Lily Broad, Rollesby, on Sunday's Norfolk Fungus Study Group foray. #Fungi #FungiFriends

Cyrtidula quercus is one of the smallest and most inconspicuous bark fungi, and is only doubtfully lichenised. It colonises young oak twigs while they are still green. Nice spores tho.

Hyaloperonospora nasturtii-aquatici. A downy mildew on Wavy Bitter-cress, Cardamine flexuosa. Once considered fungi, downy mildews are now part of class Oomycota in kingdom Chromista. (But I'll still tag this with #Fungi & #FungiFriends.) Yesterday at Lily Broad with Norfolk Fungus Study Group.

Puccinia vincae ex Vinca major Duisburg Hbf Osteingang, NRW, Germany, 10.5.2026 #Rostpilz #Rustfungus #Pucciniavincae #Phytopathology #FungiFriends

Puccinia hysterium ex Tragopogon pratensis Eschweiler, NRW, Germany, 9.5.2026 #Rostpilz #Rustfungus #Phytopathology #FungiFriends #Pucciniahysterium #Tragopogonpratensis

After months of work my Norfolk Pseudoscorpion guide for @norfolknats.bsky.social is now on the website free to see/download. Covers 20 species recorded in Norfolk so hopefully useful for other areas of UK. norfolknaturalists.org.uk/wp/wp-conten...

Today's leaf spot is Phacellium alborosellum, a white mould that infects Cerastium. The white fingers are spore-bearing conidiophores bundled into columns called synnemata. #FungiFriends #WildPlantDisease

Leaf spots on Solomon's seal (#Polygonatum multiflorum) caused by #Phyllosticta cruenta (Val Suzon, FR).

Two #rust species causing #ZombiePlants in the same place: #Uromyces scutellatus (left) and #Aecidium euphorbiae (right) on #Euphorbia cyparissias (Causse du Larzac, Nant, FR).

(1/2) #Rust of #Phillyrea latifolia, commonly known as green olive tree, caused by #Zaghouania phillyreae (Peyre, Aveyron, FR). Delighted 🤩 to have discovered this rather uncommon species for the first time, belonging to a genus I had not even known existed!

Ground Elder ( Aegopodium podagraria) Rust - Puccinia aegopodii. The spores, under the microscope, reminiscent of the hues and tones in a stained glass window. @norfolknats.bsky.social

Geṓrgios of Lydda aka, Γεώργιος

Today's leaf spot (actually one of many) is Graminopassalora graminis. I found this on a Poa the week before last. #FungiFriends #WildPlantDisease

Deadly dragon Ulster Museum, Belfast The willow dragons (1 of 3) were created by the Ulster Folk Museum's master basketmaker, Bob Johnston. #Woodensday

I'm hoping to try something similar with a resin that is set with UV light. I intend to stain the sample, dry it, and then add the resin and set it.

I do like the way lichens grow on flint. Similar feathery, fungal margins occur on polished granite - when lichens finally begin to colonise such smooth surfaces.

Whether it’s a park, sports field or cemetery we want you to tell us what #birds use your local greenspace!🐦🌳 Sign up to our Birds in Greenspaces survey at www.bto.org/greenspaces#birdsJust download the app, select your greenspace and log bird records! #UKBirding #BirdingScotland #BirdingWales

Septoria bellidis ex Bellis perennis #Bellisperennis #Bellis #Gänseblümchen #Daisy #Pâquerette #pratolinacomune #margarita #Septoria #Septoriabellidis #phytopathology #mushroom #mushrooms #fungus #fungi #pilz #pilze #champignons #champignon #nature #natur #FungiFriends

Cherry laurel leaf spot, likely caused by the fungus Eupropolella britannica. This fungus produces brown spots on the leaves, which are typically larger than those caused by other fungi responsible for cherry laurel leaf spot.

Every day is a good day for sharing one of the most useful papers about research data ever written. PLEASE get your people to understand and follow this advice. www.tandfonline.com/doi/full/10....

'Chop and drop' art in the walled Garden at RHS Bridgewater.

'Chop and drop' uses dead plant material in situ to provide free mulch. No need to carry the waste away. Here the ornamental grasses are also providing a colour contrast with areas of exposed soil. A useful garden technique providing plants are not diseased.

Different waste materials from the garden are used to build dead hedges at RHS Bridgewater. The hedges add sculpture and shape to the garden landscape while providing homes for fungi, invertebrates, small mammals and birds.

Old chimney stack and boiler house at RHS Bridgewater. Now replaced by an altra-efficient biomass boiler that uses waste tree trimmings to heat the glasshouses when needed.

13.3. Wollschweber #animalmarch #KleineKunstklasse #gelprint #acrylics #pencils #pastels #mixedmedia #art #beefly

Latest UK Hydrological Summary: -Rainfall in February above average across UK apart from N & W Scotland -River flows in normal range to above with record Feb levels in E Scotland & SW England -Groundwater exceptionally high across S England -Reservoirs at / near capacity https://tinyurl.com/4n9w9tyb

Harvest mice, Dorset, March 2026.

Entyloma fumariae yesterday in the nice weather. This had just two British records before Chris and I started recording it, but it actually appears to be widespread and common. #FungiFriends #WildPlantDisease

River Leven. No shingle visible today and no chance of finding foam. When the water is this silty, #aquatichyphomycetes can't be filtered out from water either. The build up of silt on the fine filters covers the spores.

In the Lake District checking out field sites for this autumn's @britmycolsoc.org.uk #aquatichyphomycete workshop. We'll be coming to this site if the water level isn't too high.

Data

FRDBI records of E. eburneum (left) vs E. ranunculacearum (right; only 15 records!).

I've just discovered you can search a user's posts on Bluesky! How long has this been a thing I haven't known about? In case you've missed it too, click on the three dot icon in a user's profile and select 'search posts'. Works a treat as long as you can remember which user you want to search!

An excellent example of the necrosis it can cause on epiphytic bryophytes. Thanks for the tag.

NNNS Transactions article 2 details aphid recording carried out in the Norwich area between 2020-2025, during which time @norwichbirder.bsky.social managed to locate & identify 144 species. Around 1/3 are illustrated, including some excellent photographs from @caryocatactes.bsky.social 3/x

GeoGuide home page — explore! #geology geoguide.scottishgeologytrust.org

Do I need this Sarah? I think, perhaps, I do! Congratulations.

This looks like fun, as well as being hugely worthwhile. How can people sign up as a volunteer?

Lots of Claviceps spartinae on the Spartina in the Southport saltmarsh today. On a few plants the Claviceps was hosting Fusarium heterosporum too!

Do microbes get more food by swimming or staying still? Turns out both work, and cilia help them pull in nutrients no matter the strategy. buff.ly/vK3GmK5