According to global biodiversity estimates, the ranking of species richness among these groups is as follows:Angiosperms: This group has the highest number of species among the plant kingdom and related groups, with estimates ranging between 250,000 to 400,000 species.Fungi:

-Fungi follow with approximately 72,000 to 144,000 described species, though total estimated species -are much higher.Algae:

-Algae occupy the next tier, with roughly 40,000 to 60,000 known species.Lichens:

These have the lowest species count among the four, with approximately 13,500 to 20,000 species.

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