Dictyostelium discoideum is a well-known species of slime mould. Does anyone know what the name means?
Here's my best guess.
I found the 1935 article in which it was first described, but there doesn't seem to be an explanation for the species name 'discoideum'. It might mean 'disk shaped', as in disk+oid plus an agreement morpheme -eum, because in Picture A in plate I, the sorocarp is described as having an 'expanded basal disk'.
The genus name 'dictyostelium' seems to be a reference to the stalk of the sorocarp, and how it resembles a 'dictyostele' or fern stem ('dictyo' meaning 'mesh' + 'stele' meaning upright stone), which seems plausible but strange, because I don't think the stalk has any internal structure like an actual dictyostele.
So if that's right, the overall name would be a physical description of the fruiting body, something like 'thing with a fern-like stem on a disk-like base'.
Is any of that even close?