Hello ! taipan & Mike,
Thanks for you’re discuss about Synonyms of Rhytionanthos (Bulb.).
I don’t unstand why the Bulb. jacobsonii will subsume into Bulb. plumatum.
But reverse into Bulb. plumatum was very similar to Bulb. habrotium……….
So, I'm post some photo to differentiate Bulb. jacobsonii and their relation.