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Images of crystallizing dishes with L. gibba fronds following a 4-day growth experiment at each of the four different PPFDs investigated, which correspond to the numbers (100 to 700) in each of the panels A through D. Each dish started with approximately 20 fronds. Mother fronds were slightly darker than daughter fronds. Note the greater number of fronds per colony and greater proliferation of roots at the higher growth PPFDs.
