More lichens from Ben Alligin: Cetrariella commixta, Allantoparmelia alpicola and Cornicularia normoerica. 4/n #LichensGBI
May 11, 2025 at 9:26 PM
More lichens from Ben Alligin: Cetrariella commixta, Allantoparmelia alpicola and Cornicularia normoerica. 4/n #LichensGBI
And there was a little frozen forest of Cladonia subulata
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#lichensgbi
January 7, 2025 at 3:57 PM
And there was a little frozen forest of Cladonia subulata
#lichensgbi
#lichensgbi
Classic lichen assemblage on High Weald worked wood (gate). West Sussex. Hypogymnia physodes, Flavoparmelia soredians, Cladonia polydactyla. #LichensGBI
March 16, 2026 at 5:56 PM
Classic lichen assemblage on High Weald worked wood (gate). West Sussex. Hypogymnia physodes, Flavoparmelia soredians, Cladonia polydactyla. #LichensGBI
I lead a lichen walk for local nature group this morning. I found Pannaria rubiginosa when I was doing my preparatory stroll around the route. First VC76 record since 1837.
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#lichensgbi
June 20, 2026 at 1:11 PM
I lead a lichen walk for local nature group this morning. I found Pannaria rubiginosa when I was doing my preparatory stroll around the route. First VC76 record since 1837.
#lichensgbi
#lichensgbi
Fertile Cladonia caespiticia, with its characteristic swollen brown apothecia on tiny podetia, on Ardingly Sandstone in the Rock Walk/Francis Rose Reserve in @rbgkew.bsky.social Wakehurst West Sussex. Very common infertile on trees in the Low and High Weald; rarely see it fertile. #LichensGBI
April 4, 2025 at 4:53 PM
Fertile Cladonia caespiticia, with its characteristic swollen brown apothecia on tiny podetia, on Ardingly Sandstone in the Rock Walk/Francis Rose Reserve in @rbgkew.bsky.social Wakehurst West Sussex. Very common infertile on trees in the Low and High Weald; rarely see it fertile. #LichensGBI
Inoderma subabietinum. At the base of an old Oak, Quercus robur, by the harbourside at Pagham Harbour, West Sussex. K+ lemon-yellow; UV+ bluish white. #LichensGBI Notable, International Responsibility specie. @britishlichensociety.org.uk
April 1, 2025 at 5:03 PM
Inoderma subabietinum. At the base of an old Oak, Quercus robur, by the harbourside at Pagham Harbour, West Sussex. K+ lemon-yellow; UV+ bluish white. #LichensGBI Notable, International Responsibility specie. @britishlichensociety.org.uk
St. Margaret's Rottingdean. With chest tombs U don't need to bend down to ID! Bagliettoa calciseda, Circinaria calcarea, Variospora flavescens, Lecidella stigmatea, Kuettlingeria teicholyta, Gyalolechia flavovirescens, Catillaria lenticularis, Verrucaria nigrescens, Variospora flavescens #LichensGBI
June 27, 2025 at 12:31 AM
St. Margaret's Rottingdean. With chest tombs U don't need to bend down to ID! Bagliettoa calciseda, Circinaria calcarea, Variospora flavescens, Lecidella stigmatea, Kuettlingeria teicholyta, Gyalolechia flavovirescens, Catillaria lenticularis, Verrucaria nigrescens, Variospora flavescens #LichensGBI
1/2 An outstanding Quercus robur for epiphytes in a West Sussex ancient Ghyll Woodland SSSI. Lichens: Pachyphiale carneola (Raspberry Winegums) & Thelotrema lepadinum (Bark Barnacles) (ancient woodland indicators); and Normandina pulchella (Elf Ear) #LichensGBI @britishlichensociety.org.uk
March 24, 2025 at 10:33 PM
1/2 An outstanding Quercus robur for epiphytes in a West Sussex ancient Ghyll Woodland SSSI. Lichens: Pachyphiale carneola (Raspberry Winegums) & Thelotrema lepadinum (Bark Barnacles) (ancient woodland indicators); and Normandina pulchella (Elf Ear) #LichensGBI @britishlichensociety.org.uk
Summer Snow, shining in the spring sun. Cladonia foliacea, with its basal squamules (white underneath) curled up. Pagham Harbour. #LichensGBI
April 1, 2025 at 8:26 PM
Summer Snow, shining in the spring sun. Cladonia foliacea, with its basal squamules (white underneath) curled up. Pagham Harbour. #LichensGBI
I like to look for lichens in pretty places - woods, lowland heaths, etc. - but if we want to understand the ecology of lichens we also need to look elsewhere. Candelariella aurella & Lecidella stigmatea on aluminium foot bridge; Physcia caesia & P. tenella on plastic rubbish bin. #LichensGBI
March 18, 2025 at 8:02 AM
I like to look for lichens in pretty places - woods, lowland heaths, etc. - but if we want to understand the ecology of lichens we also need to look elsewhere. Candelariella aurella & Lecidella stigmatea on aluminium foot bridge; Physcia caesia & P. tenella on plastic rubbish bin. #LichensGBI
Pertusaria coccodes. Mostly a south-east species. On Quercus robur in South Downs chalk and clay-with-flints ancient woodland SSSI. K+ yellow turning red. #LichensGBI @britishlichensociety.org.uk
April 26, 2025 at 7:06 AM
Pertusaria coccodes. Mostly a south-east species. On Quercus robur in South Downs chalk and clay-with-flints ancient woodland SSSI. K+ yellow turning red. #LichensGBI @britishlichensociety.org.uk
Good to see Cresponea premnea, a member of the Southern Oceanic Woodland Index & the Ancient Dry Bark Community (Lecanactidetum premneaeon) on an ancient Q robur in St Leonard's Forest near Horsham. C. premnea needs 300 years to colonise woodlands. International Responsibility species. #LichensGBI
April 8, 2025 at 6:50 PM
Good to see Cresponea premnea, a member of the Southern Oceanic Woodland Index & the Ancient Dry Bark Community (Lecanactidetum premneaeon) on an ancient Q robur in St Leonard's Forest near Horsham. C. premnea needs 300 years to colonise woodlands. International Responsibility species. #LichensGBI
Bryoria fuscescens was a very pleasant surprise when I was recording in a monad a couple of miles from our house.
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#lichensgbi
April 10, 2025 at 3:32 PM
Bryoria fuscescens was a very pleasant surprise when I was recording in a monad a couple of miles from our house.
#lichensgbi
#lichensgbi
The distinctive colour and location (in grooves of rough barked trees) of Chrysothrix candelaris. Gold Dust Lichen
In ancient Quercus robur. High Weald Ghyll Wood, West Sussex. #LichensGBI
In ancient Quercus robur. High Weald Ghyll Wood, West Sussex. #LichensGBI
March 25, 2025 at 7:27 AM
The distinctive colour and location (in grooves of rough barked trees) of Chrysothrix candelaris. Gold Dust Lichen
In ancient Quercus robur. High Weald Ghyll Wood, West Sussex. #LichensGBI
In ancient Quercus robur. High Weald Ghyll Wood, West Sussex. #LichensGBI
Parmotrema crinitum; the Desperate Dan lichen. Distinguished from other Parmotrema species by the ciliate isidia; looking like Desperate Dan's beard hairs. On Quercus petraea. Nettlecombe Park. Pointed by Nicola Bacciu on a @britishlichensociety.org.uk LEAF course. Fabulous course. #LichensGBI
June 1, 2025 at 7:33 PM
Parmotrema crinitum; the Desperate Dan lichen. Distinguished from other Parmotrema species by the ciliate isidia; looking like Desperate Dan's beard hairs. On Quercus petraea. Nettlecombe Park. Pointed by Nicola Bacciu on a @britishlichensociety.org.uk LEAF course. Fabulous course. #LichensGBI
The "jelly" lichen Blennothallia crispa, previously Collema crispa, mixed with mosses, on the concrete surrounds of a lock on the Wey-Arun canal, Loxwood, West Sussex. It's the cyanobacterial photobiont, a Nostoc sp., which gives it the jelly feel #LichensGBI
March 24, 2025 at 12:29 AM
The "jelly" lichen Blennothallia crispa, previously Collema crispa, mixed with mosses, on the concrete surrounds of a lock on the Wey-Arun canal, Loxwood, West Sussex. It's the cyanobacterial photobiont, a Nostoc sp., which gives it the jelly feel #LichensGBI
First day out properly looking at lichens this year. Went to a nearby old quarry with lots of mossy trees and rock. Multiple layers to cope with cold but sun shone all day so lovely to be out.
Details in alt text.
#lichensgbi
Details in alt text.
#lichensgbi
January 7, 2025 at 3:46 PM
First day out properly looking at lichens this year. Went to a nearby old quarry with lots of mossy trees and rock. Multiple layers to cope with cold but sun shone all day so lovely to be out.
Details in alt text.
#lichensgbi
Details in alt text.
#lichensgbi
These guys have had a stable substrate for a long time. Stoppham Bridge, W. Sussex, dates from 1422-3. It's made of silicious ironstone. It has many lichens. The most frequent are Acarospora fuscata, Lecidea grisella, Tephromela atra & Ochrolechia parella. @britishlichensociety.org.uk ##LichensGBI
March 22, 2025 at 6:52 PM
These guys have had a stable substrate for a long time. Stoppham Bridge, W. Sussex, dates from 1422-3. It's made of silicious ironstone. It has many lichens. The most frequent are Acarospora fuscata, Lecidea grisella, Tephromela atra & Ochrolechia parella. @britishlichensociety.org.uk ##LichensGBI
Thanks for taking part, Tim: it was a brilliant day, and a delight to introduce so many people to the strange, beautiful and ecologically vital world of #lichens! @suffolk-nats1929.bsky.social also helped to fund the workshop, so special thanks to them as well. #lichensGBI
Looking for Lecanora & Lecidella, members of the Anglian Microscopy Group and Suffolk Nats @suffolk-nats1929.bsky.social discovered lichen diversity today with Dr Anthony Speca @aspenecology.com. Thanks to Quekett Microscopical Club www.quekett.org for funding. #lichens @britishlichensociety.org.uk
May 18, 2025 at 7:44 AM
Thanks for taking part, Tim: it was a brilliant day, and a delight to introduce so many people to the strange, beautiful and ecologically vital world of #lichens! @suffolk-nats1929.bsky.social also helped to fund the workshop, so special thanks to them as well. #lichensGBI
Nice to see a lichen that's not crustose on a church wall. Cladonia pixidata. West wall of Stopham church. West Sussex. UK. See simelliottnaturenotes.blog/2025/06/14/l... for the other I lichens I saw. #LichensGBI
June 16, 2025 at 6:16 AM
Nice to see a lichen that's not crustose on a church wall. Cladonia pixidata. West wall of Stopham church. West Sussex. UK. See simelliottnaturenotes.blog/2025/06/14/l... for the other I lichens I saw. #LichensGBI
This stunted wind-blown Oak, Quercus robur, on the vegetated shingle at Church Norton beach, Pagham Harbour, West Sussex, is absolutely covered in Physcia aipolia. #LichensGBI
April 1, 2025 at 5:20 PM
This stunted wind-blown Oak, Quercus robur, on the vegetated shingle at Church Norton beach, Pagham Harbour, West Sussex, is absolutely covered in Physcia aipolia. #LichensGBI
This fabulous cluster of ancient Fagus sylvatica in the hollow-way to Diddling Village were barely standing up as the soil around their roots had been eroded. At first sight, few lichen in the dark way. But look carefully and there was plenty of Enterographa crassa & Graphis scripta s.l. #LichensGBI
August 19, 2025 at 5:11 PM
This fabulous cluster of ancient Fagus sylvatica in the hollow-way to Diddling Village were barely standing up as the soil around their roots had been eroded. At first sight, few lichen in the dark way. But look carefully and there was plenty of Enterographa crassa & Graphis scripta s.l. #LichensGBI
Lepraria finkii is a very common lichen in Sussex. It doesn't mind what it grows over; here, two pretty rare things: the fern Hymenophyllum tunbrigense and the liverwort Calypogeia integristipula (I think?). On Ardingly Sandrock. High Weald. Sussex. #LichensGBI #bryophytes #liverworts
April 11, 2025 at 12:20 PM
Lepraria finkii is a very common lichen in Sussex. It doesn't mind what it grows over; here, two pretty rare things: the fern Hymenophyllum tunbrigense and the liverwort Calypogeia integristipula (I think?). On Ardingly Sandrock. High Weald. Sussex. #LichensGBI #bryophytes #liverworts
A lovely ancient Quercus robur in Wadhurst Park; an ancient deer park. Its bark was dominated by Pyrrhospora quernea and Dendrographa decolorans. These lichens are very common on old oaks in the south. #LichensGBI
April 11, 2025 at 11:11 PM
A lovely ancient Quercus robur in Wadhurst Park; an ancient deer park. Its bark was dominated by Pyrrhospora quernea and Dendrographa decolorans. These lichens are very common on old oaks in the south. #LichensGBI
Strathclyde Lichen Group headed a bit further north today to Glen Finglas and Little Druim wood. Nothing very exciting other than boulders near the visitor centre being covered in Placopsis gelida. Lovely C+ red reaction. #lichensgbi
March 13, 2025 at 5:58 PM
Strathclyde Lichen Group headed a bit further north today to Glen Finglas and Little Druim wood. Nothing very exciting other than boulders near the visitor centre being covered in Placopsis gelida. Lovely C+ red reaction. #lichensgbi