[Epitaph]

There are mini bolbitis(bolbitis babyleaf) and cuspidata in circulation at the moment. Both could be the same plant but I'm not sure. I know babyleaf is common on eBay and it does grow submerged but takes quite a while to transition and grow. The fronds reaches only a few inches tall. As for cuspidata, I have no experience on.

 

[Epitaph]

I purchased it under the name Bolbitis heudelotii difformis/baby leaf/mini and still see many places selling it under the epithet, heudelotii. I never suspected it to be incorrect; thanks for clearing things up.

I recall seeing that thread a while back and after re-reading it, I have a different experience than some of them regarding growing it submersed. I have it for ~11 months now submerged in a low tech tank and don't see any signs of it browning/dying. Just grows excruciatingly slow.