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Grasses arose seventy million to eighty million years ago, in the Late Cretaceous period of the Mesozoic era. They succeeded partly because they concentrate their growth lower down on the leaf and stem than other plants do and thus can regenerate...
Salem Press Encyclopedia of Science, 2019. 2p.
1. Studies in the gramineae of Brazil. 
2. Growth curves of the gramineae. 
3. Les glucides des graminees. 
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