The latter species has lecanorine apothecia with black hymenial disks. |
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This species has small tan to yellowish apothecia with greenish yellow thalline margins. |
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The inconspicuous thallus and numerous small, plane, deep reddish orange apothecia with concolorous margins are characteristic. |
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The blue-gray, pruinose apothecia and green leprose thallus are good diagnostic features of this lichen. |
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Many lichens have apothecia that are visible to the naked eye. |
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