Fungus Fact Friday

Tagged: basidio

Coprinellus domesticus 0

Fungus Fact

#219: Coprinellus domesticus

One of the most unusual things I found in my first year of mushroom hunting was a log covered with a layer of orange fuzz – reminiscent of shag carpeting, which looks out-of-place in a natural setting. After much searching, I discovered that the fuzz was produced by a mushroom: Coprinellus domesticus. The mushroom itself is an inky cap, but the fuzz – called an ozonium – lasts longer and is therefore easier to find. Nobody knows why the fungus makes an ozonium, but it certainly makes identification easier. You might also find this mushroom fruiting in your bathroom. As its species name implies, the fungus routinely appears in wet areas of homes. The mushroom has a few common names that are used occasionally. These include the “Firerug Inkcap” (primarily British), “Retro Inky” (from MushroomExpert.Com), and “Domestic Inkcap” (translated from French).

Neolentinus lepideus 0

Fungus Fact

#218: Neolentinus lepideus, The Train Wrecker

Neolentinus lepideus is a very tough whitish agaric with lots of scales that appears on dead conifer wood. Its gills have a serrated margin, a characteristic shared with pretty much every species that has “lentin” in its genus name. In the United States N. lepideus is called the “Train Wrecker” because it often appears on railroad ties. In most other parts of the world, the mushroom is simply called the “Scaly Lentinus.”

Scleroderma citrinum 1

Fungus Fact

#217: Scleroderma citrinum, The Pigskin Poison Puffball

Scleroderma citrinum is a common earthball that appears in a variety of habitats around the world. The mushroom is one of the most often collected Scleroderma species, so one of its common names (mostly used in Europe) is “The Common Earthball.” S. citrinum has a couple other common names: “The Pigskin Poison Puffball” and the less common “Golden Scleroderma.” Both of these names refer to the mushroom’s outer surface, which is yellow-brown and has a scaly texture reminiscent of a football (American style, often called a “pigskin”). The mushroom’s thick warty outer skin makes it stand out among other earthballs and its interior that quickly turns blackish easily separates it from the true puffballs.

Ductifera pululahuana 0

Fungus Fact

#216: Ductifera pululahuana

In my area, Ductifera pululahuana is the second most common jelly fungus (after the Wood Ear, FFF#134) that appears in late spring or early summer. It is a strikingly white mushroom that grows in clusters of densely-packed irregular lobes. This shape reminds me of something in between popcorn and fluffy mashed potatoes. Despite this airy appearance, D. pululahuana is rather dense and thick, especially compared to other jelly fungi. I find the ten-syllable scientific name difficult to remember, especially after not using it at all over the winter. When I forget the name, I fall back on the out-of-date name Exidia alba. It’s much easier to remember and refers to the same mushroom, even if it’s incorrect today. The mushroom also goes by the common names “Pale Jelly Roll” and “White Jelly Fungus,” but I’ve never heard those used.

Coprinellus disseminatus 0

Fungus Fact

#214: Coprinellus disseminatus

Coprinellus disseminatus is a tiny umbrella-like mushroom that makes up for its small stature by producing thousands of mushrooms at once. I found one stump last weekend that I estimate produced between 6,000 and 10,000 mushrooms. There were so many mushrooms so close together that from a distance they looked more like a single large crust fungus than lots of tiny mushrooms. C. disseminatus is also remarkable because it is an inky cap but its gills do not liquefy. You can actually get a spore print from this mushroom instead of a gooey black glob.1 Despite that, C. disseminatus disappears quickly like any other inky cap. Once, in my early days of mushroom hunting, I passed a stump with a few hundred C. disseminatus mushrooms in the morning. When I revisited it that afternoon, I found no traces whatsoever of the inky caps.

Crucibulum laeve 0

Fungus Fact

#213: Crucibulum laeve

Bird’s nest mushrooms are some of my favorite mushrooms to show people when introducing them to the amazingly diverse world of mushrooms. The fact that there are tiny mushrooms that look like a bird’s nest still stuns me. The two most common bird’s nest mushrooms that I find are Cyathus striatus (FFF#147) and Crucibulum laeve. C. striatus is larger and more likely to be seen, but C. laeve is probably more common. C. laeve is most visible when young; in that stage it has a yellow to orange membrane sealing the top of the nest that makes it easy to spot on brown mulch, twigs, and other small pieces of wood. Once you find it, the mushroom is easy to identify; C. laeve is the only North American bird’s nest mushroom with white eggs and a yellow nest.

Pluteus cervinus 1

Fungus Fact

#142: Pluteus cervinus, the Deer Mushroom

Pluteus cervinus is one of the first gilled mushrooms to appear in the spring, although you can also find it during summer and fall. Commonly called the “Deer Mushroom,” it features free gills, a pinkish spore print, a radish-like odor, and unique pointed cystidia (which you need a microscope to see). In Europe, the mushroom is called the “Deer Shield” (I think mushrooms in the genus Pluteus are called “shields” in Europe, though I’m not sure why) or the “Fawn Pluteus.” I was introduced to this mushroom as the “Fawn Mushroom,” a name which is not as widespread as “Deer Mushroom” in the United States.

Cerioporus squamosus or Polyporus squamosus 3

Fungus Fact

#089: Cerioporus squamosus, the Dryad’s Saddle

Cerioporus squamosus (a.k.a. Polyporus squamosus) is a beautiful polypore that reaches impressive sizes. It is whitish with brown flecks on the top and is probably the largest mushroom you’ll find in the spring. It appears on dead trees and logs and is quite eye-catching thanks to its size and pale colors. C. squamosus is commonly known as the “Dryad’s Saddle,” “Pheasant Back Mushroom,” or “Hawk’s Wing” (this last name is the least common). The first name – which is my personal favorite – derives from the mushroom’s shape; its brackets seem to be perfectly sized and positioned to form a little seat for a weary tree nymph (dryad). The other two names refer to the mushroom’s coloration; a pale surface flecked with triangles of brown looks remarkably similar to the back of a female pheasant or the wing of a hawk.

Phellinus robiniae 3

Fungus Fact

#081: Phellinus robiniae, the Cracked Cap Polypore

Phellinus robiniae, commonly known as the “Cracked Cap Polypore,” is a woody bracket fungus that is most easily identified by its habitat. This fungus grows almost exclusively on locust trees. In fact, the fungus is such a common pathogen of locusts that nearly every Black Locust tree has at least one P. robiniae mushroom on it. The mushroom is also distinguished by its furrowed cap – which gives the fungus its common name – and its dull brown pore surface.

Cedar-Apple Rust telial horns 8

Fungus Fact

#087: Gymnosporangium juniperi-virginianae, Cedar-Apple Rust

Gymnosporangium juniperi-virginianae is a rust fungus known as Cedar-Apple Rust (sometimes abbreviated to CAR) that causes disease in Eastern Red Cedar and in apple trees. This fungus is unique among rusts because it produces large fruiting bodies. On cedar trees, the fruiting bodies resemble lumpy brown golf balls with long gelatinous orange tentacles bursting out of them. On apple trees, the disease causes more damage but produces only orangish spots. The complex life cycle of Cedar-Apple Rust means the fungus is easy to control, although these control methods resulted in a legal case that was argued before the Supreme Court of the United States!