Another bryophilous fungus query - this one either on Frullania sp. or on the mould over the 15 year old lichen specimen (from SW Ireland). Probably conidia as no asci seen, green, 5-septate, 29-39 x 5.5-7 µm. Looking on bryophilous.co.uk Ilyonectria sp. looks probable? @ilichenmoss2.bsky.social

1/2. Perithecia of a bryophilous fungus on possibly Diplophyllum in an old Bunodophorum melanocarpon specimen from SW Ireland (2009). Spores green-brown, muriform with 3-5 transverse septa, 20-25 x 7-10 µm, asci ?8-spored. @ilichenmoss2.bsky.social (2/2 with attempt at host images)

Dorset UK - Didymellopsis collematum , perithecia lichenicolous on Collema tenax v. ceranoides. Asci to 100 x 15 µm, spores hyaline, 1-septate, 22-25(-27) x 5-7 µm. Abundant on drive where I park my car - a bit of thallus about the size of my thumbnail had possibly 50 perithecia on it! #lichenGBI

#lichenGBI Colour variation in Lecidella elaeochroma apothecia #lichen

#lichenGBI Unexpected on Larch twigs covered with Physcia tenella and Xanthoria parietina - a solitary Teloschistes chrysophthalmos! #lichen

Both morally and politically wrong - Gaza's future should include, and be determined by, Palestinians! www.theguardian.com/commentisfre...

#LichenGBI Houseboat deck on lignum, thallus +/- sorediate, K+yellow, C+ orange, UV+ orange-brown. Pale brown apothecia, some pruinose, spores 8-13(-15) x 4.5-5 µm. Possibly very fertile Lecanora expallens but KUV(wet)+yellowish instead of bright green? @aspenecology.com, @larkinlichen.bsky.social

Darkly funny: signs appearing across central London, protesting Starmer’s use of anti-terror laws against peaceful pro-Palestine protesters.

Call for the Battle of the Beanfield to be included in Orgreave policing inquiry - but as the Northumbria police conveniently destroyed the papers last April that related to Orgreave I doubt the Wiltshire police will be very forthcoming. www.theguardian.com/uk-news/2025...

Well worth reading: www.theguardian.com/commentisfre...

Struggling to identify photobiont in this C- #lichenGBI on twig, not nutrient-enriched. Apothecia and spores fit both Lecania naegelii (C-, photobiont chlorococcoid, cells 6–16 μm) or Micarea peliocarpa (C± red, photobiont micareoid, cells 4-8 μm wide) @aspenecology.com @larkinlichen.bsky.social

#LichenGBI A #lichenicolous fungus on 3 different Arthonia radiata thalli - but the spores (c.10-13 x 2.5-3 µm) appear too small for Stigmidium arthoniae (17-23 x 4-5 µm). Once again at a loss as I've checked the 2010 Draft Keys and Arthonia LFs in LGBI3 without success! @fayrnhawk.bsky.social

#LichenGBI Lecideine apothecia I thought were Catillaria nigroclavata until checked. Spores (1-)3 septate 7-12 x 2-3 µm, a few paraphyses had swollen dark caps (ruled out Micarea). Keyed to Lecania and then L.naegelii - but spores too wide! Any thoughts @aspenecology.com @larkinlichen.bsky.social

#LichenGBI 1/2 Can't make sense of black perithecia with slightly pointed apices on Oak twig. Under microscope K+ bluish-green, spores (1-)3 septate, 15-22 x 4.5-5 µm, conidia c5(-7)x2 (but no obvious pycnidia). Any thoughts @aspenecology.com @northernhills.bsky.social @larkinlichen.bsky.social

#lichen #lichenGBI Just wondering if anyone knows the identity of the lichen in this photograph at the start of LGBI3, Volume 35 Ramalinaceae? britishlichensociety.org.uk/sites/defaul...

#lichenGBI Found corticolous Porina byssophila several times recently, but always with a K+ blue-grey or blue-green reaction in involucrellum. This specimen had a paler thallus, no K+ bluish reaction but spores were 3-5(-6) septate, 20-24 x 4-5 µm - but still P. byssophila? @aspenecology.com

:) Well there's karma! www.theguardian.com/us-news/2025...

How unbelievably stupid are they? There was apparently a UK-based business offering the same amount but despite the wreckage Trump & co are causing they opted for a US company!! www.theguardian.com/business/202...

#lichenGBI Bacidina(?) on fencepost, solitary whitish / pinky-brown apothecia. Hymenium yellowish, K-, spores to 7-septate, 25-30(-37) x 1.5(-2) µm and possibly +/- coiled in asci. Post covered with yellow-greenish soredia/alga so not clear what might be the thallus. Any thoughts @aspenecology.com?

On twig - apothecium with flat, concave apex, no photobiont. Spores green > brown, (1-)3(-4) sept, few with vertical septum, 22-25 x 10-12 µm. Some septa pale. Spore appendage c. half spore length, leaving truncate base. Non-lichenised but with BLS number? @aspenecology.com @fayrnhawk.bsky.social

#lichenGBI Three different specimens on sunny, exposed fence post, all with curved spores +/- coiled in the asci. Spores to 7-septate, 17-22(-24) x 1.5-2.5 µm. Keep coming back to Scoliciosporum umbrinum but not sure I haven't missed something obvious? @aspenecology.com @larkinlichen.bsky.social

#LichenGBI Well, it took a while but I think I finally got there! Micarea doliiformis pycnidia on a old pine stump, the conidia hyaline, c.2.5-3 x 1-1.5 µm. Only come across it once before and that time it was fertile

#lichenicolous Physcia aipolia spec with various LFs, both with 3-armed conidia(?) also present, arms (15-)22-30(-37) x (2-)2.5-3 µm. Tried keying them in The Flora of Lichenicolous Fungi Vol 2 (Hyphomycetes) but got hopelessly lost! @larkinlichen.bsky.social found similar/same in Lecanora section

#lichen #lichenicolous Lecanora chlarotera s.l. on Betula with +/- totally blackened apothecia. No host asci or spores but 3(-4) armed conidia(?), each arm c7 x 2.5 µm, some septate. There was a thread on UK Fungi website but can't find and @larkinlichen.bsky.social might have come across similar?

#lichenicolous 2015, lichenicolous on Porpidia tuberculosa. Small clusters of tiny black apothecia with roughened exposed discs and raised margins. Most spores 3 septate, 15-24 x 7-9 µm, epithecium darker green in K, paraphyses branched. Phacographa glaucomaria is close but host wrong. Suggestions?

A question to #bluesky @moderation.bsky.app - is there any way I can remove and block people following me who're only here to push porn, dodgy psychedelic meds and various other rubbish? Its rapidly getting as bad as X!

#lichenGBI Tremella occultixanthoriae, forming a tiny pink gall on the underside of Xanthoria parietina lobe on a twig from my oldest sons garden, Co. Limerick, Ireland. Photos just confirmed by Brian Coppins. Pity I didn't find it a year ago to include in Lichenicolous section of Pauls new book!

#lichen, #lichenGBI An old photo (2016) from a limestone pavement in the Burren, Co. Clare, Ireland but no specimen collected. Its a fairly small Leptogium/Collema sp, possibly Scytinium schraderi (Leptogium), Scytinium turgidum (Leptogium) or Scytinium fragile (Collema) but none seem quite right!

#lichen, #lichenicolous Came across a photo of Xanthoriicola physciae (crop below) taken in 2008 that appears to show immature galls of Telogalla olivieri - but I'd be very glad of other peoples opinions! @fayrnhawk.bsky.social @aspenecology.com

#lichen Came across these 2009 photos from the West Cork coast, Ireland, of the Ramalina siliquosa K+ chemotype, previously recognised as Ramalina incrassata. According to LGBI3 "a common form on western shores on vertical faces and below overhangs".

From SW Ireland, a #lichenicolous fungus I can't identify forming blackish galls on Phaeophyscia orbicularis. Conidia abundant, pale brown, simple and lemon-shaped, (12-)14-15 x (6-)7µm. Wondering if anyone might have come across anything similar?

Probably missing something obvious in failing to ID this small crustose #lichen from SW Ireland, on trunk bark of veteran deciduous tree and would appreciate help! K+ yellow, the spores 5(-7+) septate 25-40 x 2.5-3(-4).

#wasp Dorset allotment today - a Dolichovespula but does anyone know which species?

Female Broad-bodied Chaser obligingly posed for a photo at the allotment today. #dragonfly

Lake District Lichen public service announcement! The latest edition of the Countrystride podcast features April Windle talking about Borrowdale and Atlantic rainforests... www.countrystride.co.uk/single-post/... I haven't listened to it yet, so I don't know if I would recommend it!

Up on Devil's Dyke, Sussex, today and took shelter under the trees and looked at the lichen - Sunshiny yellow Candelaria concolor, apothecia (fruit) of Hypotrachyna afrorevoluta, and the tiny ear-like lobes of Normandina pulchella all nestled on old Oak branches #lichens

Hello and an introductory post as I'm just figuring out how to use bsky. Tried (unsuccessfully) to add alt text so that's for another time.