Hi, I have grown lots of Acer mono and Acer truncatum so my practical experience tells me these species are different. Their germination habits demonstrate this. Truncatum has an unusual feature of hypogeal germination, that is the cotyledons do not emerge from within the seed - it just pops out of the soil with its first two leaves. Mono should have 'normal' epigeal germination with cotyledons emerging from the seed and the ground. However I am stumped to find this documented (from behind the Chinese firewall at least.) Can anyone give me reference to documentation in their differences in germination? Thank you.