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In a departure from the usual Wiki format, Wikenigma assigns 'Importance Ratings' to some pages.

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• Jan 2021 : A milestone of 600 unknown articles has been reached.

• Oct 2020 : A milestone of 500 unknown articles has been reached.

• Aug 2020 : Currently (beta) testing the new 'WYSIWYG' (What You See Is What You Get

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Wikenigma - an Encyclopaedia of Unknowns Wikenigma - an Encyclopaedia of the Unknown Science

Flowering plants evolution

The evolutionary pathways that produced the flowering plants (the Angiosperms) have been studied for at least 140 years.

The flowering plants appear very suddenly (geologically speaking) in the fossil record, at around 100 million years ago. Before that, all known plants were Gymnosperms, which had no flowers as such, and did not rely on pollinating insects (etc.)

Charles Darwin called the sudden appearance 'an abominable mystery' .

“The rapid development as far as we can judge of all the higher plants within recent geological times is an abominable mystery.”

A 2021 paper in the American Journal of Botany describes the history of Darwin's investigations.

Although recent progress in fossil examinations has partly clarified the evolution - the current consensus is that the flowering and non-flowering plants had a common ancestor - much of the detail is still unknown.

BBC News interviewed the author. Professor Richard Buggs of Queen Mary, University of London, “One hundred and forty years later, the mystery's still unsolved,”


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