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Mushroom Observer Image 510113: Umbilicaria phaea Tuck.
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Mushroom Observer Image 44980: Umbilicaria hyperborea (Ach.) Hoffm.
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Var. coccinea alongside var. phaea
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Mushroom Observer Image 279411: Umbilicaria muehlenbergii (Ach.) Tuck.
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Mushroom Observer Image 524003: Umbilicaria phaea Tuck.
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Mushroom Observer Image 279412: Umbilicaria muehlenbergii (Ach.) Tuck.
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Mushroom Observer Image 711963: Umbilicaria phaea Tuck.
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Underside, showing ball-tipped rhizines
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Mushroom Observer Image 279413: Umbilicaria muehlenbergii (Ach.) Tuck.
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Mushroom Observer Image 720692: Umbilicaria phaea Tuck.
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Mushroom Observer Image 279414: Umbilicaria muehlenbergii (Ach.) Tuck.
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Mushroom Observer Image 732398: Umbilicaria phaea Tuck.
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Mushroom Observer Image 279415: Umbilicaria muehlenbergii (Ach.) Tuck.
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Mushroom Observer Image 84631: Umbilicaria phaea Tuck.
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Mushroom Observer Image 279416: Umbilicaria muehlenbergii (Ach.) Tuck.
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upper surface, wet
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Mushroom Observer Image 279417: Umbilicaria muehlenbergii (Ach.) Tuck.
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Compilation of multiple photos taken at different points in time; taken both in field and in lab.
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Mushroom Observer Image 282442: Umbilicaria muehlenbergii (Ach.) Tuck.
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Mushroom Observer Image 282443: Umbilicaria muehlenbergii (Ach.) Tuck.