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#crustose lichens
blogbirdfeather · 2 months
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Crustose lichens and Ramalina sp - Líquenes crustáceos e Ramalina sp
Carnaxide/Portugal (30/01/2024)
[Nikon Coolpix P900; 50mm; 1/500s; F6,3; 100 ISO]
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Crustose lichens covers the surface of this rock. Hemavan, Sweden.
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calicotisane · 10 months
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My aroallo heracross icon for " Pride Month" this Year #Lfg
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aldercaps · 2 years
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been having Many Thoughts about a particular firbolg again + a close up of the lichen on his armour
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itslookingback · 2 years
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i need to get better at identifying lichens and mosses......
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crustose · 10 months
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Compost-preacher -> crustose btw
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drumlincountry · 4 months
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Do the goths know about the grotesque imagery of the bog??? Do they know about sphagnum moss and the non-crustose lichens? the moss, blood red, evoking flesh, evoking the soft yeldingness of the inside of your cheek... the lichen, brittle, evoking bones, evoking the delicate vessels of the lungs? Do the goths know that these things grow together? Do they know that sometimes the lichen grows on the red moss, like a crown of bone on a pillow of blood? In a land where little lives and nothing rots? Do the goths know about the bog????
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lichenaday · 4 months
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Polycauliona impolita
When I tell people that I study lichens and they respond "Oh, those little moss-looking things, right?" I want to show them pictures like these and be like "Does this look like moss to you?" But usually I am too nice and too excited to explain what a lichen is to do that. But not today! Does P. impolita look like moss to you? I think not! This crustose-placodioid lichen grows in rounded patches with an areolate (tile-like) central thallus and a marginal thallus of elongated lobes. The upper surface is yellow-orange to red-orange and often pruinose (covered in a fine powder), with orange, flat-disked apothecia clustering toward the center. P. impolita grows on non-calcareous rock in western North America.
images and info: source
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seabeck · 6 months
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Some cool lichens I saw today! Seek was able to ID a few but it really struggles with crustose ones.
and a bonus, brown eyed wolf lichen!
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libraryofmoths · 5 months
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Moth of the Week
Peppered Moth
Biston betularia
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The peppered moth is a part of the family geometridae. It was first described in 1758 by Charles Linnaeus. This moth gains its name from its speckled coloration, which has been studied as an example of natural selection and population evolution.
Description This species has a short body with narrow forewings. The body and wings are the same white base peppered with black dots and irregular black lines. This speckled pattern may vary with some moths having very few spots and others having so many that they look as if they are black with white spots as opposed to white with black. In rare cases, the black on the wings and body is replaced with gray or brown and in even rarer cases the spots are a combination of brown and black/gray. These spots help the moth camouflage against lichen on trees.
The evolution of this moth had been studied extensively during the last two hundred years, which created the term “industrial melanism.” During the Industrial Revolution, air pollution killed off lichen and covered trees in soot. This caused moths with a black spots on white base (typica) coloration to lose their camouflage and die off due to predators. This caused a spike in population for moths with a darker coloration (carbonaria) because they had the camouflage advantage. Once environmental conditions improved, the lighter colored moths once again became the dominant coloration.
The male’s antennae are bipectinate, meaning it has two rows of rami going down either side of a singular flagellum.
Wingspan Range: 45 - 62 mm (≈1.77 - 2.44 in)
Diet and Habitat The caterpillar of this moth eats many trees, shrubs, and small plants such as Blackthorn (Prunus spinosa), Hawthorn (Crataegus monogyna), Downy (Betula pubescens) and Silver Birch (Betula pendula), limes, sallows, poplars, oaks, Sweet Chestnut (Castanae sativa), Beech (Fagus sylvatica), Bramble (Rubus fruiticosus), Broom (Cytisus scoparius), Black Currant (Ribes nigrum) and Hop (Humulus lupulus).
They have a wide range, being found in China (Heilongjiang, Jilin, Inner Mongolia, Beijing, Hebei, Shanxi, Shandong, Henan, Shaanxi, Ningxia, Gansu, Qinghai, Xinjiang, Fujian, Sichuan, Yunnan, Tibet), Russia, Mongolia, Japan, North Korea, South Korea, Nepal, Kazakhstan, Kyrgyzstan, Turkmenistan, Georgia, Azerbaijan, Armenia, Europe and North America. They prefer habitats of woodland, scrub, hedgerows, parks and gardens.
Mating Depending on its location, this moth can have one or two generations per year. In Great Britain and Ireland, the peppered moth has one generation per year, whilst in south-eastern North America it has two generations per year. They emerge from the pupea in late May to August.
The females attract males with pheromones, which are carried by the wind. Males follow the concentration gradient to find the female. The male guards the female from other males until she lays the eggs. The female lays about 2,000 pale-green ovoid eggs about 1 mm in length into crevices in bark with her ovipositor.
Predators This species is a night-flying moth, making the vulnerable to bats. The males in particular fly every night to search for a female while females fly only the first night.
To protect themselves from birds during the day, this species rests on lichen covered trees to camouflage themselves.
The day time resting positions of this moth have been recorded and studied. This study shows that the peppered moth prefers resting spots that are covered such as below where the trunk and a branch meet, the underside of branches, and leafy twigs.
Additionally, the study found peppered moths with a lighter coloration (typica) blend in better against crustose lichens rather than foliose lichens because birds can see ultraviolet light. The peppered moth reflects UV light while crustose lichens don’t, making them easier to pick out.
Fun Fact The caterpillars of the peppered moth resemble things in both color and size. An experiment published in 2019 done on the caterpillars of the peppered moth showed that the larva (even when blindfolded) could sense the color of the tree they live on and change their body color to match and/or would move to a different twig that was closest in color to their own body.
(Source: Wikipedia, Butterfly Conservation, Max Planck Institute)
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lichenypetricor · 5 months
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PSA
Lichen isn’t moss.
It’s not a fungus either (I actually saw some molding lichen in the woods yesterday), but a symbiotic relationship between a fungus and an algae or Cyanobacteria.
Kind of like a land coral!
It can come in many shapes and sizes, divided into three categories: crustose, fruticose, and foliose lichens.
Crustose ones are like the crusts you see on trees, but are also commonly found on rocks or any substrate they can adhere to.
Foliose lichens are also commonly found on trees, with an underside in another color (usually black, but I saw a white underside once) and sort of leaflike edges.
Fruticose becomes a catch-all term— in the Genus Cladonia alone, you see a very distinct look to the cup lichens, British soldier lichens, and reindeer lichens that fall under the single genus.
Anyways, lichens aren’t decomposers but a pretty self sufficient organism— they’re incredibly durable to different climates, because many photosynthesize using water straight from the air, as well as simply needing a place to latch onto, growing anywhere they will be undisturbed (for the most part).
I love lichen but the lack of both common knowledge and scientific study of it kills me— Im pursuing this as a career, if not mycology. If anyone sees any misinformation in this post feel free to let me know and I will edit it asap.
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blogbirdfeather · 2 months
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Foliose and crustose lichens - Líquenes foliáceos e crustáceos
Carnaxide/Portugal (30/01/2024)
[Nikon Coolpix P900]
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Crustose lichen on alpine tundra, Klimpfjäll, Sweden.
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nepenthean-sleep · 5 months
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"crustose" literally sounds like an enzyme that breaks down solidified fluids could they have picked a different word to describe lichen shapes please
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I suddenly found myself hyperfixated on nature last week. So, I'm starting a new blog to dump all of my identifications and learnings! I've taken a particular interest in fungi, trees, and birds, so I expect I'll be posting quite a bit about that. Here's to growing closer to the world around me!
pictures in this post:
1. A baby plant growing inside of an Eastern redbud in my front yard! (Cercis canadensis)
2. Some neat lichens (unsure of specifics, but there's a mix of crustose and foliose) on a Japanese maple (Acer palmatum)
3. A branch of leaves of a Hidcote St. John's Wort shrub (Hypericum hidcoteense)
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wizard-beast · 3 months
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a rock thats mostly lichen
im definitely trespassing
and if a train comes i dont know what ill do
the path is narrow between the tracks
and the mossy mountainside
looking for a rock thats mostly lichen
because i know you know all their names
fruticose foliose and crustose
each a friend youre most familliar
you would tell me all about it, scientific names and all that
youd pet its overgrown head
like an animal not yet awakened
i hope youd keep it in your pocket
like a little piece of me that i found
like a little piece of you
but all the shapes werent quite right
and i had to get home soon
i couldnt find a rock thats mostly lichen
i hope youll like this feather i found instead
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