#crustose
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mmejans.bsky.social
More Molokai lichen, these were growing on wood posts on the beach at Halawa Valley #fungifriends
Crustose grey lichen with orange apothecia
September 30, 2026 at 5:35 AM
jeffontherock.bsky.social
Lichen collage on lakeside rock. Northwest Territories, Canada.
#lichen #fungi #fungifriends
Photo of large crustose lichens on flat rock. Lichen colours include white/cream, grey and orange.
December 20, 2025 at 1:11 AM
tanukisrevenge.bsky.social
I’m lichen it!
Pink fruiting bodies of some crustose lichen in an arid forest clearing
August 14, 2026 at 11:53 PM
mmejans.bsky.social
Crustose lichen with lovely orange apothecia growing in Olympic National Park #fungifriends
Grey crustose lichen with dark orange dots; and several large licht peach colored apothecia
August 30, 2026 at 2:31 AM
jeffontherock.bsky.social
Protoparmeliopsis muralis and friends. Northwest Territories, Canada.
#lichen #fungi #fungifriends
An oval, frilly-edged pale greenish lichen is mixing with a bright yellow crustose lichen.
December 9, 2025 at 9:47 PM
jeffontherock.bsky.social
Another brainy Orange Rock Posy (Rhizoplaca chrysoleuca) #lichen.
Northwest Territories, Canada.
#fungi #fungifriends
Photo of a cream coloured lichen growing flat on grey (mostly crustose lichen) rock. The left part of the lichen has a large brain-like growth.
January 1, 2026 at 7:28 PM
jeffontherock.bsky.social
Lichen, Lecanora epibryon. NWT, Canada. #lichen #fungi #fungifriends
Lichen is approximately 5cm long.
Photo of a crustose lichen on tree bark. The lichen is light green-grey with numerous brown discs that have white rims (the apothecia). The lichen is roughly oval in shape, with pointed ends.
February 20, 2026 at 3:11 AM
jeffontherock.bsky.social
Syntrichia ruralis #moss growing on crustose #lichen (Rhizocarpon sp, I think). NWT, Canada. Such a beautiful little moss. #bryophyte #botany #fungifriends
photo of a tuft of moss that’s largely yellow-green in colour, with some brown toward the leaf tips. The tops of each moss plant are star-shaped. The moss is growing on grey and black crustose lichen with a pebbled surface.
December 22, 2025 at 12:23 PM
jeffontherock.bsky.social
I love how the surface of some crustose lichens can look like an aerial view of an exotic landscape. This picture covers about 5cm, left to right.
Porpidia #lichen. #Newfoundland, Canada. #fungi #fungifriends
Close up photo of a small section of a crustose lichen that’s grey in places and orange in others. It looks sort of like a barren landscape with mountains and valleys.
February 18, 2026 at 12:39 AM
jeffontherock.bsky.social
Lichen, Rusavskia elegans.
Photo of a round, bright orange crustose lichen growing flat on grey rock.
March 12, 2025 at 12:00 AM
paulrfoth.bsky.social
It's the 12 days of crustose lichens.

Day 1: Dimelaena oreina, or Golden Moonglow. Near Ashcroft, BC.
🌿
Pale yellowish mosaic-style lichen, crustose and rounded with longer floral lobes toward the edges. On brown rock.
December 25, 2025 at 11:43 PM
jeffontherock.bsky.social
Alpine bloodspot #lichen. Yesterday at Newfoundland, Canada. #fungifriends
Picture of a cream coloured, crustose lichen with bright red, velvety-looking apothecia (spore producing structures).
December 22, 2024 at 8:41 PM
jeffontherock.bsky.social
Crustose #lichen on rock. Porpidia sp, I think. I find these lichen landscapes incredibly beautiful. #fungi #fungifriends
#Newfoundland Canada.
Photo of an orange and grey crustose lichen growing on rock. The lichen looks like a satellite view of some exotic landscape.
January 25, 2025 at 3:16 AM
mmejans.bsky.social
Happy Earth Day from this heart-shaped lichen #fungifriends
Light-grey crustose lichen in the shape of a heart on dark grey rock
April 23, 2025 at 2:31 AM
mmejans.bsky.social
I think the black discs are this crustose lichen’s apothecia #fungifriends
Grey crustose lichen with black saucer shaped apothecia
December 1, 2024 at 11:24 PM
contessalebkuchen.bsky.social
Good Morning…Symbiotic patchwork of Crustose lichens on a tiny twig.
#macro #photography #lichen #nature #fungifriends
A macro image of a few varieties of crustose lichens patched worked together on a small twig.
April 24, 2026 at 12:14 PM
jeffontherock.bsky.social
Orange Rock Posy Lichen. NWT, Canada.
lichen is about 3cm in longest dimension.
#lichen #fungi #fungifriends
Photo of an off-white lichen. One section of the lichen looks like brain. The rest looks like frilly leaves. Five large, orange apothecia are visible on the lichen. The lichen is growing on grey rock and on other (crustose) lichens.
February 27, 2026 at 1:13 AM
mmejans.bsky.social
Patches of crustose lichen with many apothecia on this tree root #fungifriends
Crustose grey lichen with ochre/green apothecia on a very smooth green/ochre colored smooth tree root
January 2, 2025 at 3:44 AM
mycotae.bsky.social
lichen posting!

(Not on a wooden post but I still love these photos!)
Pink and greenish grey lichen. Green crustose lichen next to black foliose lichen Grey crustose lichen on rock Grey green lichen with yellow.
February 25, 2026 at 3:32 PM
jeffontherock.bsky.social
Elegant orange sunburst #lichen, Rusavskia elegans. This photo was taken at around -40C/F…amazing how they thrive in pretty extreme environments. Northwest Territories, Canada. #fungi #fungifriends.
A very round, orange, crustose lichen is growing flat on light coloured rock. The centre is filled with small round, orange discs…the apothecia.
December 19, 2025 at 9:02 PM
jeffontherock.bsky.social
Dimelaena oreina (golden moonglow lichen). Northwest Territories, Canada.
#lichen #fungi #fungifriends
Photo of a round, off-white, crustose lichen on rose coloured stone.
December 10, 2025 at 10:52 PM
jeffontherock.bsky.social
A very Eye of Sauron lichen scene. Porpidia (grey) and Lecidia (orange), possibly. #lichen #fungi #fungifriends #hiking
Photo of some crustose lichens. Combined, the lichens look like the Eye of Sauron from Lord of the Rings.
November 30, 2025 at 8:20 PM
jeffontherock.bsky.social
Rhizocarpon sp #lichen in the process of “taking over” another species of crustose lichen. This Rhizocarpon is the yellow-green colour. The species it is taking over is grey…see top, left of pic. A lichenologist recently explained that several species of Rhizocarpon do this.
#fungi #fungifriends
Photo of a yellow-green crustose lichen growing flat on reddish rock. The lichen is sort of rectangular and is made up of numerous tiny “islands” of yellow-green with black lines separating the islands. In the top left you can see a tiny bit of similar looking, but grey, lichen.
March 11, 2026 at 2:00 PM
peterbraubach.bsky.social
New challenges await: A mosaic of crustose #lichen.
Crustose lichen with black apothecia on moss covered volcanic rock of a garden wall.
September 28, 2024 at 1:43 PM
twoozofplastic.bsky.social
Crustose lichen and ivy on top of the stone wall along the Sills in Barnard Castle.

#moss #lichen #fungi #fungifriends #nature
Crustose lichen and ivy.
March 4, 2026 at 4:54 PM