Eventually I managed to get some fragments of the mini Riccia from Malaysia. Unfortunately, 99.9% of the plant died during postage (1 week journey). But after about two months, I found some minute fragments emerged...see photos here:
Mini Riccia fluitans (Crystalwort)
Now I wish this remaining fragment can survive!!
Mini Riccia fluitans (Crystalwort)
Now I wish this remaining fragment can survive!!