Most observed native Rhizocarpales
10 species, native to the US, by observations.
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Yellow Map Lichen
Rhizocarpon geographicum
14,883 observations
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Rehmia reducta
306 observations
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Boreal Single-spored Map Lichen
Rhizocarpon grande
182 observations
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Single-spored Map Lichen
Rhizocarpon disporum
157 observations
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Copper Patch Lichen
Sporastatia testudinea
124 observations
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Lemon Map Lichen
Rhizocarpon macrosporum
74 observations
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Oeder's Map Lichen
Haugania oederi
60 observations
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Rehmia rubescens
42 observations
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Poeltinula infernula
21 observations
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Smooth Map Lichen
Poeltinula hochstetteri
12 observations