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Lung Lichen
You may think there’s no old growth forest or wilderness on PEI, but that’s not true. We have amazing ancient and wild spaces if you know where to look and can recognize the signs. Lung Lichen ( Lobaria pulmonaria ) is one of those signs. A lichen is a unique creature: usually, it’s a combination of a fungus and an alga or cyanobacterium functioning as one organism. But Lung Lichen is one PEI’s few tripartite lichens: it includes a fungus, a green alga, and a cyanobacter
katemacquarrie22
Mar 292 min read


Lichens and Rocks
At the end of the last Ice Age about 12,500 years ago, PEI would have looked more lunar than Earthly: no vegetation, just clay, silt,...
katemacquarrie22
Mar 19, 20252 min read


British Soldier Lichen
PEI’s autumn leaves are gone, but there are still bright splashes of colour in the landscape. One of my favourites is the tiny but...
katemacquarrie22
Nov 20, 20243 min read


Old Man's Beard Lichens
In honour of Halloween, let’s look at something that can make PEI’s trees look decidedly eerie: Old Man’s Beard Lichens ( Usnea spp.)...
katemacquarrie22
Oct 30, 20243 min read
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