Last Updated - 2.24.2015
Edible Wild Mushrooms Commonly Found In Pennsylvania And Personally Eaten Regularly
Photo of winecap Stropharia
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Aborted Armillaria
Armillaria abortivum
Aborted entoloma

Almost Bluing
King Boletus

Boletus subcaerulescens

Artist's Conk
Ganoderma applanatum

Bear's Head Tooth
Hericium americanum

Birch Polypore
Piptoporus betulinus

Black Trumpets
Craterellus fallax

Clitocybe nuda

Brick Caps / Brick Tops
Hypholoma sublateritium

Cauliflower Mushroom
Sparassis spathulata

Chicken of the Woods
Laetiporus sulphureus

Inonotus obliquus

Comb Tooth
Hericium coralloides

Common Laccaria
Laccaria laccata

Corrugated Cap Milky
Lactarius corrugis

Dryad's Saddle
Polyporus squamosus

Giant Puffball
Langemannia gigantea

Golden Chanterelle
Cantharellus cibarius

Hedgehog Mushroom Big
Dentinum repandum

Hedgehog Little
Dentinum umbilicatum

Hen of the Woods
Grifola frondosa

Honey Mushrooms
Armilleria mellea

Horn of Plenty
Craterellus cornucopioides

Horse Mushroom
Agaricus arvensis

Hygrophorus Milky
Lactarius hygrophoroides

Lilac Bolete
Xanthoconium separans / Boletus separans

Lingzhi / Reishi
Ganoderma lucidum & G. tsugae

Lion's Mane / Old Man's Beard
Hericium erinaceus

Meadow Mushrooms / Pinkies
Agaricus compestris

Oyster Mushroom
Pleurotus ostreatus

Purple-gilled Laccaria
Laccaria ochropurpurea

Quilted Green Russula
Russula virescens

Red Chanterelle
Cantharellus cinnabarinus

Rooted Oudemansiella
Oudemansiella radicata

Shaggy Mane
Coprinus comatus

Smooth Chanterelle
Cantharellus lateritius

Tinder Fungus
Fomes fomentarius

Turkey Tail
Trametes versicolor / Coriolus versicolor / Polyporus versicolor

Two-colored Bolete
Boletus bicolor

Voluminous-latex Milky
Lactarius volemus

Winter Chanterelle
Cantharellus tubaeformis
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The Prince ? or Almond Mushroom ?
Agaricus augustus or A. subrufescens
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Wild Food Foraging
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Lactarius corrugis

Corrugated Cap Milky

Back in the mid 1970's my interest in wild mushrooms was reawakened.
I always had a bit of interest in wild mushrooms having on a yearly basis picked Morels in the Spring and Sheep's Head in the Fall but that was about it. Then one day a beer drinking friend let me look at a book he had just purchased - Orson K. Miller Jr's, Mushrooms Of North America. Prior to that book I never actually looked at a mushroom book. After reading it several times before returning it to him I really got hooked. I wanted to go look in the woods, right away, for some of the many varieties in the book but it had been raining pretty much non-stop for a week so I was restrained. I bought my own copy of Mr. Miller's book. Now I have 30 + mushroom books.

When I finally got into the woods about a week after the rain stopped man was I surprised. There were hundreds of mushrooms. They were everywhere. And so many colors. So many different spore surfaces. For someone who was only familiar with Morels and Sheep's Head mushrooms it was overwhelming.

It was not long after having my own copy of Orson's book that I started in the quest of Identifying mushrooms. During that endeavor I eventually picked up a mushroom that wept milk. I knew it was going to happen at some point because I had already read about them in Orson's book but it was still a surprise when it actually happened.
Probably 90% of the people in this country have no idea that there is such a thing as a mushroom that exudes a milky liquid when cut or injured.

The Lactarius group ( milkies ) is very common here in Southwest Pa. so there is almost always some specimen that can be found from the the end of Spring to Fall.

One of the first Lactarius mushrooms that I identified, long ago, and have enjoy eating for over 35 years is this one.
The cap is reddish-brown - rusty-brown. The center portion of the cap, which often is depressed, is darker brown.
Photo of a Lactarius corrugis - Corrugated Cap Milky
This is about as big as you want for eating. It's like anything else you eat, pick the prime specimen whether it is a cucumber, zuchinni or mushroom.

As it gets more mature/bigger, like below, the mushroom gets darker brown, like the color in the center of the small ones.
Photo of a large sized Lactarius corrugis - Corrugated Cap Milky
My preference is to NOT pick the bigger ones for eating. I like the smaller ones. And because I pick many different varieties of mushrooms throughout the year I can be choosey.

The cap has a very delicate velvety feeling. Also the cap will be wrinkled here and there, that is, corrugated ( corrugated = wrinkled ). You can both feel and see the velvetness and wrinkling on the cap surface.
When young the stem is pretty much colored in the same manner as the cap.

Gills are creamish or buff colored. Often there will be some light brownish areas between the gills - here and there - nothing definite.
Gills are close but not crowded.
When you cut the gills the latex ( white milky fluid ) will run from the gills like opening a tap. Very copious.
Photo of a Lactarius corrugis. Photo is an intro to a video depicting the copious nature of the white latex - Corrugated Cap Milky
The latex has no acrid character so if a few drops are put on the tip of your tongue there will be no peppery sensation. Just spit out anything you taste, that's always a good idea.
Photo of a Lactarius corrugis showing the gills and the change in color of injured areas  - Corrugated Cap Milky
In the photo above the long brown streak is where the gills were cut with the knife blade.
Cuts and injury turn brown after some minutes.

The missing portion of the mushroom near my little finger was bitten off and chewed to make certain that there is no acrid taste. Mild tasting Lactarii is one of the features inherent in those worthy for the table.
Corrugated cap milkies turn brown where injured. The flesh of the cap and stem is light cinnamon colored.
They have a smell that is distinctive. I would equate the smell to that fishyness which lingers in towns that have seaports, that is, that vague smell in the air like at Erie, Pa., Newport R.I., New Bedford, Ma., etc. - right near the water. The only thing missing when picking these mushrooms is the squawk of a colony of seagulls.
Notwithstanding the fishy odor when fresh the aroma when cooking becomes an enjoyable mushroomy scent. And the taste is great. The tecture is very agreeable, definitely not limp or insipid.

Weather conditions: Best when weather has been damp. Found in deciduous woods from Summer to Fall.
They could be almost anywhere so keep your eyes open. I find them usually from late July, during the season that Chanterelles and Hedgehogs abound, through September, when I am searching for Sheep's Head.

Best Practice: Make sure there is latex running. Although Lactarii sometimes are apt not to have much latex due to weather conditions, it's best to just pass up any of these that don't have the latex. There's plenty of other good edible wild mushrooms to choose from so don't take any chances of possibly confusing some other similar looking mushroom with the Corrugated Cap.

Lactarius corrugis - A/K/A - Corrugated Cap Milky
DATE - July through September.
Weather conditions: Best when weather has been damp. Found in deciduous woods from Summer to Fall.
FOUND -They could be almost anywhere where there are a lot of oak trees so keep your eyes open. I find them usually from late July, during the season that Chanterelles and Hedgehogs abound, through September, when I am searching for Sheep's Head.
Coincidentially, those areas where I seek Sheep's Head and Chanterelles are usually beech/oak mixed woods so I usually find these milkies during my forays.

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