I found this on one of my Phalaenopsis roots. They were on a dead portion of the root (and
only on the dead portion). This is not the first time I have seen them, but this time I had macro lenses to snap a pic.
I would like to know what they are. And before you jump into conclusions yelling "red spider mites", no, they don't have legs. They don't move. They are not even mite-shaped.
They are bright red, spherical, with evenly placed bumps, varied size, sessile.
Maybe they are some kind of fructification from a saprophytic fungus? I must research more. Until I find an answer, I share my mysteries with you.
Thank you.