23 votes
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What is Growing on These Tree Leaves? (Image)

This is actually not a gall as other answers have suggested. This is likely a fungus called Cedar-apple rust (Gymnosporangium juniperi-virginianae). The fungus only thrives in the presence of both ...
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17 votes
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Why do mushrooms grow in rings (sometimes called "Fairy Rings")?

When spores germinate, they do not generate mushrooms directly, but haploid mycelium starts to grow. Only when the mycelium from spores with the other mating type is met, cells fuse and generate ...
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  • 672
17 votes
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Species ID: Buckyball-like fungus

Looks very similar to Clathrus ruber fungus. Be careful, it is poisonous.
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  • 5,620
16 votes
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Why does mouldy food make you sick?

One of the most common toxins in mouldy food/bread is aflatoxin. The exposure to high amount of aflatoxin can lead to acute aflatoxicosis with fulminant hepatic failure and even death. While mild ...
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  • 5,620
16 votes
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How does yeast dissolve in sugar?

The whole process is called osmosis. In it there is the flow of liquid along a concentration gradient. Water then flows from the side which contains the low concentration of dissolved molecules (this ...
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  • 49.2k
13 votes
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Are there any documented cases of extinction of a species of fungus?

According to the International Union for Conservation of Nature’s Red List there are many endangered fungi, but none that are documented to have become extinct within the time frame of interest to you....
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  • 5,196
13 votes
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circular pattern of mold on quince

Looks like you may have Monilinia fructigena, brown rot, or at something similar (possibly also called brown rot, but from a different species). This pattern isn't special to quince, but to this ...
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  • 36k
11 votes
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Is this a plant or a fungus?

Identified Species: Clathrus ruber Scientific classification Kingdom: Fungi Division: Basidiomycota Class: Agaricomycetes Order: Phallales Family: Phallaceae ...
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11 votes

What is this red mushroom with the "inverted" cap?

Looks like Sarcoscypha Austriaca (scarlet elfcup). It's actually used in many textbooks as a representative species for the Ascomycetes. Details from Wikipedia and Messiah.edu both confirm that this ...
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10 votes

Are there any documented cases of extinction of a species of fungus?

Yes. One example is of a fungus named Prototaxites. It was originally thought to be a tree, but it was a massive, tree-like fungus.
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10 votes
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Is it true to say that the genome of trees includes or at least "encapsulates" the genome of mushrooms?

No. Evidence: If you go to the TreeGenes site and examine those tree genomes that have been sequenced you won’t find any fungal chromosome sequences. (And vice versa.) Reason: Although trees and ...
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  • 22.4k
9 votes
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Is there an antagonistic association between Penicillium and Aspergillus?

It is hard to find any articles on the association between Penicillium and Aspergillus species, although they are both considered two of the most common mold species found indoors. In this study, ...
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  • 953
9 votes
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What is this fungus that is growing on my plant, and is it dangerous?

My answer won't apply if your plant isn't a cycad (a species from the genus Cycas) as only cycads are affected. Cycad aren't native to the Dominican Republic but have been planted as ornamentals in ...
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  • 1,136
9 votes

Do Traits Have to be Adaptive in Order to Survive?

Good question. And good analysis. I have little to add! I'll simply provide my own list of thoughts to complement your ideas, which are not mutually exclusive. The fact that it wasn't discarded ...
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  • 5,600
8 votes
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How do mushrooms react to being grown in a microgravity environment?

There were some experiments done in microgravity in longer space shuttle missions. The reports show that the fungi develop relatively normal but grow in random orientations instead of orientating ...
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  • 49.2k
7 votes
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What is this white stuff inside apples?

I am pretty sure that it is a moldy core rot which would be caused by a fungus that infects the apple during the flowering stage. The fungi is also referred to as "apple fuzz". From SF Gate ...
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  • 2,558
7 votes
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What is happening to this tree?

The tree is dying. From what you say, it has no leaves wduring a time it should, it has saprophitic growth along the trunk; it looks like there's a crack in the bark on the right, and there are ...
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7 votes
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Is identifying the genus of a fungus (mushroom specifically) enough?

Again, I would say: no, genus is not enough. Another example: boletes (specifically, genus Boletus). According to Wilderness College: One of the most common and well-known groups of edible wild ...
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7 votes
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What is this white fluff growing in my basement?

Might as well make this an answer. ...it seems to collapse when I rub my foot on it. As @tyersome stated, it appears to be salt, not mold. Salt crystals would definitely collapse easily underfoot, ...
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7 votes
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In lichen, do the fungi consume the oxygen produced by algae?

Exchange of gases between lichen symbionts has been demonstrated for Flavoparmelia caperata. Note that this is a foliose lichen species, though the findings may be generalizable to marine lichen. We ...
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  • 7,564
6 votes

Why does mouldy food make you sick?

Here's a bit of additional information (Although there's an answer from Ilan that satisfied you.) Is it the mould itself that makes us sick or is it something that the mould is releasing? What are ...
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  • 531
6 votes

What is so difficult about mushroom cultivation?

What makes some mushrooms easy to cultivate is that they grow profusely, they aren't tree symbionts, where as sponge gilled culinary musrhooms are symbionts. Cheap mushrooms can easily be controlled ...
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6 votes

Where do mushrooms get their energy from?

Mushrooms are the fruiting bodies of fungi. Fungi get their energy by decomposing dead or decaying organic material, such as fallen leaves or dung. Some background: spores of fungi germinate forming ...
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  • 371
6 votes
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ID of a purple fungus in Virginia

This is not a moss, but a fungus of the family Clavariaceae. Most likely this is Clavaria zollingeri, commonly known as violet coral, but there are a few resembling species. Microscopy might be needed ...
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  • 3,647
6 votes

Is it true to say that the genome of trees includes or at least "encapsulates" the genome of mushrooms?

A symbiotic relationship is entirely unrelated to the genetic origins of the participating organisms. Symbiosis only requires that the organisms interact in a manner that benefits both parties. There ...
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6 votes

What organism is this?

That looks to me to be non-biological but rather the result of using an expanding foam filler product to fill in gaps, as might occur in the wallboard where a sink is mounted. Here's an example of ...
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  • 8,719
5 votes
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What is a good identification key for European mushrooms?

There are various types of Mushroom identification Sites. you can take help from: Mushroomexpert Rogersmushrooms MycoKey 4.0 Source: MycoKey 4.0
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