Mushroom looking thing in pot, root??

Hi guys, I looked at my plants there and was surprised to see in one of them 2 mushroom looking things it is white with like a round head on top (pictured although not clear). There are some roots on the surfuace so maybe it is a root?

Here are the pics:



My other plant is showing more roots at the surface, I realise this means I'd need a larger pot?? I'm pretty happy for the size of the plant as I'm growing in limited conditions.

Heres a pic of the other pot



Just for reference heres a picture of my 2 plants
The one on the right has the mushroom thing, and the bigger one on the right is showing the roots on the surface.


As always thanks for any replys. Cheers

What size pot, and how long has it been in the pot? Was it transplanted from another one already?

dead leaf matter in your soil can attract fungus. they will not decompose fast enought to benefit your plant.

They've been in the pots for almost 5 weeks, the pots are 7 litres. I trasplanted them from a 2l bottle in like the 2nd week of growth. The leaf matter has been there for a day so i doubt it is because of that. Should i pick these things if there funghi or could it be some of the root system? They have been growing in total for a period of 6 1/2 weeks.

If fungi-based, you have a very good soil composition... pull `em if you want - wouldn't hurt to leave them in though as they break down complex nutrients into more simple forms that plants can readily chow down on.

I had the same issue, but it's not a bad thing. You have good rich soil and the fungi are taking advantage of it.

Add some soil over the exposed roots and till the top one to two inches being careful not to damage the roots. Aerating the surface soil will help get oxygen to the roots and prevent spores (mushrooms) from establishing on the surface.

Water slowly or using an aerating tip on your water bucket to prevent soil compaction in the future.

I would also remove the lower fan leaves by the soil to improve airflow and get a fan down there. Don't go nuts here. Just trim the lowest fan leaves.

Another tip, make sure the soil is drying out between watering.

Mushrooms are part of the Soil Food Web and can be beneficial to plant life. The guys in the organics section can give you more information if you are interested.
Last tip, don't eat the mushrooms.

Thanks to both figong and prosperian for the informative replies!