The exact relationship between these eight groups is not yet clear, although there is agreement that the first three groups to diverge from the ancestral angiosperm were Amborellales, Nymphaeales, and Austrobaileyales. The term basal angiosperms refers to these three groups. Among the rest, the relationship between the three broadest of these groups (magnoliids, monocots, and eudicots) remains unclear. Some analyses make the magnoliids the first to diverge, others the monocots. Ceratophyllum seems to group with the eudicots rather than with the monocots. COUNT 4
QSN1 What three groups were the first to diverge from angiosperm? ANS1 Amborellales, Nymphaeales, and Austrobaileyales QSN2 What term refers to the first three groups to diverge from angiosperm? ANS2 basal QSN3 How clear is the relationship between the broadest of the three non-basal angiosperm groups? ANS3 unclear QSN4 What group do some analyses seem to indicate diverged first? ANS4 magnoliids