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polaris-14 wrote:
Oh, I like this a lot, Bob! Patterns in nature and also colors. Number 2 is the best in the series IMO. Maybe because it's the color or probably because of it's a more tightly clustered formation?
As an aside, do you know why some are green and some are red? I have seen orange lichens as well.[/quo
Many thanks, Adhika, for your most welcome and kind comments and glad you like images.
All I can discern in respect to rock lichen colors is that variations can exist not only within species but in different species, as well. Colors can be affected acids secreted by the plants, too.
Bob
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