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Posts Tagged ‘Physarum Viride Slime Mold’

Finally, after I believe two years since my last full mushroom post, I’m able to do another. I thought I’d start with these pretty little butter wax caps (Hygrocybe ceracea.) I’m not a mycologist and I don’t even like eating mushrooms but I sure do like looking at them because they can be very beautiful.

I think theses small white mushrooms might have been flat oysterlings (Crepidotus applanatus.) They are a pure white wood rotting mushroom that feel like your earlobe and I’ve read that they’re sometimes called simply flat creps. They should not be confused with oyster mushrooms because they are inedible.

Here is the what the underside of the previous mushrooms looks like. I’ve heard that the gills brown with age so these examples must have been quite fresh.

I was able to see something I’ve never seen before; the “birth” of a Berkley’s polypore (Bondarzewia berkeleyi,) the largest mushroom I’ve ever seen. What you see here are at least three mushrooms erupting from that lumpy, whitish mass.

There were two groups here near a tree and this is one of the groups when it was young and just taking on that familiar shape. This mushroom grows at the base of hardwoods in the east and in the west a similar example, Bondarzewia montana, grows at the base of conifers.

These photos were taken over a period of about three weeks, so this is a slow growing mushroom. As I said, they can be huge, and this one was probably at least two feet across. I don’t know if it had finished growing but as this photo shows something had been eating it. I’d guess a squirrel. They get to a lot of mushrooms before I do.

From the gigantic to the almost microscopic. These eyelash fungi (Scutellinia scutellata) grow on the wet, seeping wound of a standing tree. Each of the bigger ones is less than the diameter of a pea. They are considered cup fungi and they get their name from the hairs around the perimeter. The hairs can move and sometimes curl in towards the center of the disc shaped body. I’ve read that some believe that the hairs might collect moisture, similar to the way spines on cacti work, but I’ve always found them growing in very wet places so I’m not sure about that. The shine you see in the photo is caused by the camera’s LED light. It’s quite dark where these grow.

Fan shaped jelly fungi (Dacryopinax spathularia) are spatulate fungi, meaning they’re shaped like a spatula. These grew out of the crack in a log and were quite pretty, I thought. Sometime you’ll see spatulate fungi that are more fan shaped or club shaped but these examples seemed to live up to the name fairly well. In China it is sometimes included in a vegetarian dish called Buddha’s delight.

According to Mushroom Expert.com Staghorn fungi (Calocera cornea) grow after heavy rains on the barkless, dead wood of oaks and other hardwoods. This log had its bark still on but these small fungi came out from under it.

The website goes on to say that this jelly fungus appears as clusters of slick, cylindric fruiting bodies with rounded-off or somewhat sharpened tips. In fact it looks more like a tiny club fungus than a jelly fungus. These examples covered a good part of this log. They’re fun to look at but getting a useable photo can often be a little less than fun. These fungi are quite small.

You can tell that it has been rainy, hot and humid when slime molds start to appear. Despite the name slime molds aren’t molds and they aren’t always slimy. Unfortunately, though everybody argues about what they aren’t, nobody seems to know exactly what they are. The easiest way for me to think of them is as a single celled organism like an amoeba, with thousands of nuclei. Many headed slime mold (Physarum polycephalum) likes decaying organic matter like leaves and logs because this is where it finds its food supply of bacteria, yeasts, mushroom spores and microbes. The slime mold in the photo is in a vegetative phase called plasmodium, which is when it can move by ”streaming ” at about 1 millimeter per hour. The plasmodium is made up of networks of protoplasmic veins and many nuclei which move to seek out food. Once it finds something it likes it surrounds it and secretes enzymes to digest it.

Here is a closer look at a “streaming” many headed slime mold on an oak leaf. It was moving, but so slowly the eye can’t detect it.

This example of a many headed slime mold looked like it was climbing this stone. There must have been something on the stone very appealing to it to have it do this. I think this was only the second time I’ve seen a slime mold on stone.

Slime molds can be very beautiful things and one of my favorites is white finger slime (Ceratiomyxa fruticulosa var. fruticulosa.) Finger is a good description of the way this slime mold appears. It’s hard to relate just how small these are, but in each ‘finger” would be less than the diameter of a toothpick, and in length possibly 1/16th of an inch. As if that didn’t make photographing them tough enough sunlight is an enemy of slime molds, so they are only found in very dark places like the undersides of logs.

I was pleased with this photo because it shows something I’ve wondered about for years. I once saw a log with hundreds of clear, antler shaped beings on it and I’ve wondered what they were ever since. Now I know that they were young finger slime molds, because you can see two of them just right of center in this shot. They’re so small I couldn’t see them when I was taking this photo.

The honeycomb coral slime mold (Ceratiomyxa  fruticulosa  var. porioides) in the above photo that I took previously is a close relative of the finger slime mold we just saw. When conditions are right and food is running low this organism will produce the white honeycomb shapes seen in the photo. They do this prior to fruiting, which is when they create the spores needed to reproduce. Without magnification this slime mold looks like a white smudge on a log and is far too small for me to see in any great detail. I’m always surprised when I finally see what is in the photos.

Each one of the yellow dots you see in this photo is part of a slime mold called Physarum viride. As far as I can tell it has no common name. This slime mold likes decaying logs and can be found in conifer or hardwood forests. Each bright yellow “Lens-shaped structure” is on a stalk, and as they age they will blacken and harden, and start to crack open before releasing their spores to the wind. Each of these tiny “dots” would measure less than the diameter of a common pin.

The white cousin of the slime mold we just saw is called Physarum alba. These structures are also stalked and except for their color behave in the same way as their cousins. You have to look closely but you can see how some of these have cracked open to show their black spores inside.

As I’ve said here before Indian pipes (Monotropa uniflora) are not fungi but because they like the same conditions they often show up when the fungi do, and so they often end up in these mushroom posts. I’ve included this one because I don’t think most people ever see them doing what this one is doing. When an Indian pipe is ready to become pollinated and begin producing its dust like seeds it turns is flower straight up to the sky and slowly browns and hardens, finally looking a lot like it’s made of wood before splitting open to release its seeds. They usually crack open in very late fall or winter.

And here is a view looking down into an Indian pipe flower; a view I’m guessing many have never seen. It is thought that the flower turns up like this so its ten yellow pollen bearing stamens surrounding a large central style will be more visible to pollinators. It is fitting that the plant appears in a post on fungi because it has recently been discovered, according to the University of Texas, that Indian pipes are associated with a fungus which obtains nutrients directly from the roots of green plants. That makes Indian pipe a parasite, with the fungus acting as a “bridge” between it and its host.

Chanterelle mushrooms (Cantharellus cibarius) are often deformed when we’ve had a lot of rain and over 12 inches of rain in a little more than two weeks is a lot, but this chanterelle looked fine. Chanterelle mushrooms are considered a delicacy but I’ve had mushroom experts tell me that you can never be 100% sure of a mushroom’s identity without examining its spores under a microscope. Since I don’t own a microscope that means you can never be sure of my identifications either, so please don’t eat any mushroom you see here until you have an expert examine them. There are mushrooms so toxic that one or two bites have killed. We have mushroom walks led by an expert or experts here. If you want to become serious about mushroom foraging you might find out if you have anything like them in your area. They’re a good place to start.

From the side chanterelles look like trumpets, but so do many other mushrooms including the false chanterelle, which is inedible. False chanterelles have orange flesh, while true chanterelles have white flesh. This example had white flesh but I still wouldn’t eat it without showing it to an expert first.

Common stinkhorns (Phallus impudicus) have an odor like rotting meat when they pass on, and that’s where their common name comes from. Though this example was dry, the green conical cap is sometimes slimy and shiny. It uses its carrion like odor to attract insects, which are said to disperse its sticky spores. Its stalk is hollow and spongy. I find these mushrooms almost always growing on some type of wood, often wood chips or very rotten logs. Though this one looks like it was coming up in a lawn I’d bet my lawnmower that there was wood in some form under the grass.

Jackson’s amanita (Amanita jacksonii) is also called American Caesar’s mushroom. It has a bright orange or orange-red cap with a lined perimeter, yellow gills, and a white, sack like volva. The volva is what remains of the outer skin, called a universal veil, that enclosed the mushroom in its young “egg” stage. As the mushroom grows the universal veil tears open to finally reveal what we see here. I had to brush a few pine needles away so we could see it clearly.

The Jackson’s amanita in the previous photo turned into this in a single night. It must have been 3 inches across, and it was a very colorful, beautiful thing.

I hope you enjoyed seeing these beautiful wonders of nature and I also hope you will be able to find plenty of mushrooms in your area this summer. You don’t have to eat them or even know their names; just admire their beauty. They’re popping up everywhere here.

The sudden appearance of mushrooms after a summer rain is one of the more impressive spectacles of the plant world. ~John Tyler Bonner

Thanks for stopping in.

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