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Northern Tooth
Welcome to the final Mushroom Monday of 2025. We’ll end with a large and easy-to-identify species that hasn’t been recorded all that often on the Island: Northern Tooth ( Climacodon septentrionalis ). As we’ve seen throughout this series, mushrooms come in all shapes and sizes, and can share physical traits without being closely related. The spore-bearing surface of Northern Tooth has spine-like ‘teeth’ rather than gills, folds, or pores (inset photo). Despite this, it is m
katemacquarrie22
Nov 30, 20253 min read


Parula Warbler
Earlier this year, my youngest (and largest) dog was cornered on the deck by something that was clearly very scary. I rushed to rescue him and immediately saw the fearsome creature: this lovely Northern Parula Warbler ( Setophaga americana ). ( No birds were harmed in the taking of this photo ). The Northern Parula is one of about 20 species of migratory warblers that breed on PEI. I’m no birder, but the Parula Warbler’s distinctive call is one of the few I recognize: a fast
katemacquarrie22
Nov 26, 20252 min read


Woolly Alder Aphids
Welcome back to Ask a Naturalist, your own personal Google for information on all things natural on PEI. Today we have an insect that people often mistake for a fungus. Meet Woolly Alder Aphids ( Prociphilus tessellatus ). From a distance, Woolly Aphids do look like some sort of fluffy, fungal mould on the branch of a tree. But take a closer look and you’ll see that those fuzzy clusters are actually dozens – sometimes hundreds – of individual insects crowded together. The
katemacquarrie22
Nov 12, 20252 min read


Shaggy Parasols
Welcome back to Mushroom Monday, your weekly look at some of PEI’s fascinating fungi. I taste-tested today’s species for the first time this year, and it’s now among my favourite edible wild mushrooms. Meet the Olive Shaggy Parasol ( Chlorophyllum olivieri ). Shaggy Parasols are large, eye-catching mushrooms that can be found in grassy, open areas as well as in forests (especially under Spruce). Field guides often list them as lookalikes for edible Shaggy Manes, but they’re n
katemacquarrie22
Nov 9, 20252 min read


Bog Birch
This fall, we’ve been exploring some of PEI’s least-common trees, including Balsam Poplar, Ironwood, and Jack Pine. Today it’s one many people haven’t even heard of: Bog Birch ( Betula pumila ). We often think of Birch as among the majestic trees of PEI’s early forests. Nineteenth century writers told of Yellow Birch ( Betula alleghaniensis ) three to four feet in diameter, and it was said that Mi’kmaq people were able to make a six-person canoe from the bark of a single Wh
katemacquarrie22
Oct 29, 20252 min read


Sweetbread Mushrooms
Welcome back to Mushroom Monday, your weekly look at some of PEI’s fascinating fungi. It’s often helpful to use more than just sight when identifying mushrooms, and today’s species has a very distinctive smell. Meet Sweetbread Mushroom (aka The Miller, Clitopilus prunulus ). I confess that I generally don’t pay much attention to small mushrooms with white caps and gills. I’m sure they’re perfectly lovely, but I tend to assume they exceed my limited identification skills. Af
katemacquarrie22
Oct 26, 20252 min read


Mica Caps
Welcome back to Mushroom Monday, your weekly look at some of PEI’s fascinating fungi. Little brown mushrooms can be tricky to identify, but today’s species has features that help it stand out: meet Mica Caps ( Coprinellus micaceus ). Mica Caps are part of the Inky Cap group of mushrooms, just like the Shaggy Manes ( Coprinus comatus ) I’ve posted about before. Although these two species share a similar approach to spore dispersal, they’re not closely related. As we’ve seen in
katemacquarrie22
Oct 19, 20252 min read


Wild Lily-of-the-Valley
You may think of summer as peak season for PEI’s wild berries, but a few tasty treats are at their best this time of year. One of my fall favourites is Wild Lily-of-the-Valley (aka Canada Mayflower, Maianthemum canadense). Wild Lily-of-the-Valley is NOT the same as the popular garden plant of the same name. The sweet-smelling European Lily-of-the-Valley ( Convallaria majalis ) contains toxic cardiac glycosides that can cause nausea, vomiting, diarrhoea, and irregular heart
katemacquarrie22
Oct 15, 20252 min read


False Chanterelle
Welcome back to Mushroom Monday, your weekly look at some of PEI’s fascinating fungi. Today’s species is one I’ve known about for decades...
katemacquarrie22
Oct 12, 20252 min read


Balsam Poplar
Most Islanders are familiar with Poplar (aka Trembling Aspen, featured last week), and many know of its relative, Large-tooth Aspen. But...
katemacquarrie22
Oct 8, 20252 min read


Common Puffball
Welcome back to Mushroom Monday, your weekly look at some of PEI’s fascinating fungi. Today, it’s one of the most common and widespread...
katemacquarrie22
Oct 5, 20252 min read


Trembling Aspen
One of PEI’s most common trees is Poplar, aka Trembling Aspen ( Populus tremuloides ). The ‘trembling’ name comes from the habit of this...
katemacquarrie22
Oct 1, 20252 min read


Brown Roll-Rim
Welcome back to Mushroom Monday, your weekly look at some of PEI’s fascinating fungi. This week we have the interesting, toxic, and...
katemacquarrie22
Sep 28, 20252 min read


Birch Polypore
Welcome back to Mushroom Monday, your weekly look at PEI’s fascinating fungi. We’re staying with the Polypore group for another week to...
katemacquarrie22
Sep 21, 20252 min read


Ironwood
Most people have never seen PEI’s rarest native tree in person, and some have never even heard of it. Meet the beautiful Ironwood (...
katemacquarrie22
Sep 17, 20252 min read


Maze Polypores
Welcome back to Mushroom Monday, your weekly look at some of PEI’s fascinating fungi. The dry weather has made it a poor year for most...
katemacquarrie22
Sep 14, 20252 min read


Jack Pine
It may not be majestic, but it’s PEI’s rarest native conifer and has an adaptation unlike any of our other trees. Meet Jack Pine ( Pinus...
katemacquarrie22
Sep 10, 20252 min read


Dyer's Polypore
Welcome back to Mushroom Monday, your weekly look at some of PEI’s fascinating fungi. Today it’s the common, beautiful, and...
katemacquarrie22
Sep 7, 20252 min read


Cinnabar Polypore
On PEI, September means a few things: the end of summer, the start of school, and the return of Mushroom Mondays! Over the past couple of...
katemacquarrie22
Aug 31, 20252 min read


Cicadas
Many of PEI’s wild animals are more often heard than seen – none more so than Cicadas. Most of us immediately recognize their...
katemacquarrie22
Aug 24, 20252 min read
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