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The really big book of plants

Effort traces 1100 species and a billion years of evolution.

female cones of gymnosperm (Gnetum gnemon)
A small part of a big story: (l. to r.) green alga (Lacunastrum gracillimum), female cones of gymnosperm (Gnetum gnemon), and cherry tree flower (Prunus domestica). Credit: Michael Melkonian and Walter S Judd.