It doesn't matter what kind of fungus that is. what it seems like is that your lawn is infected with fungus - what you are seeing are just the fruiting bodies and these are often very difficult to remove. these thrive in wet conditions,in areas that have fallen leaves, poop or grass clippings and so if you can reduce the source of nutrients for this fungi and reduce the moisture level it would help. get rid of the fruiting bodies by digging them out before they set off spores. Third. look for lawn fungicides. Like I said, these are really difficult to remove. So good luck and continue this maintenance program. (note nitrogen applications like fertilizers will only enhance their growth)

Just pick them or let them go away on their own. It just means you have good soil. They are not dangerous to anything. No they aren't causing the leaves to do anything.

Actually it was small and yellowish in color. I scraped all that I saw off. I found two small mushrooms that were also yellow in color. I of course took them out of the viv ASAP. I have no pet currently living in the viv so I have also put in some sow bugs. Not sure when I will be getting another Chinese Water Dragon but I will keep an eye out so this problem doesn't recur. The mushrooms seem to confirm that this isn't algae. Not sure what it is but hopefully with the change in bedding/soil and the removal of the existing spores it has been taken care of.

The common yellow oxalis we have here has tiny "bulbules" (sp?), which lurk 12 -18 inches under the ground. You can easily pull up the plants, of course, but those tiny bulb things stay under the soil, and up it comes again. I once had a gardener who decided to eradicate it from a flower bed which is about 12 feet long and 6 feet wide. He actually dug up the top 2 feet of soil, and sifted it by hand to get all of the tiny bulbs out. That worked for the first year, but by 2-3 years after he did that, back the oxalis came. So, being lazy, what I do is just admire it in the Spring, except where it is trying to smother other plants. Then just pull it out around those plants. By late Spring here it has died down, and I pretend it is gone. Of course, it comes up again the next Spring. It is one of our first blooming plants to bloom (starts Jan/Feb), so I just regard it as such and let it be mostly. One of my cats likes to eat it (we used to eat it as children - we called it "sour grass"). Jackie