What you describe...sounds like this. It is sphere and sort of gooey...but, also stays together. Maybe later I will remove the majority of this then. Curious if the conditions in shipping made it the perfect conditions for it to grow. Glad it's nothing to concern myself with though.It probably IS those pellets, but there is also a fungus that inhabits moss that looks like this, easily picked out with tweezers. It'll sort of be a sphere that is gooey but will stay together to pull out. It won't harm anything either way. I've had this fungus this year in moss more than other years, so it's just something that shows up in wet years.
Kind of looks like this to me : https://en.wikipedia.org/wiki/Exidia_glandulosa