sooby said:Have any plants died or got sick near where they are found? I'm not sure if they'd have a hole in one side but I'm wondering about fungal sclerotia. Check out southern blight (Sclerotium rolfsii) for an example in Google images.
Alternatively could they be spent fertilizer prills?
I had thought of fungus, my searches didn't yield much, your suggested fungi does produce little balls that do look similar, I can't find any info on the texture of that specific sclerotia.
I was just playing with a few different sclerotia that grow on a log in my yard.
Most all the sclerotia I've seen range from dry, dusty, and crusty or soft, moist and flexible.
Seems the outside layer is for protection, with the insides contain the body or food of the fungus.
I really can't say that these aren't some type of sclerotia, but I highly doubt it!
Nothing about these things really make me think fungus, but I'm not ruling it out...
The bed these specific "things" came from is actually one of my best beds, every thing I put there seems to do well, but I grow a lot of very large annuals, lots of organic matter gets left to decay there.
I knew time release fertilizer would eventually be suggested... All the bing/google searches that I try, lead to lots of results from people finding old ozmocote beads in their soil, that haven't broken down yet, these are defiantly not that!
I've been popping them for a few decades now...I love how they work!