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Xanthoparmelia plittii (Gyel.) Hale

Plitt’s rock shield

ParentsUnknownGenus is not in the current taxonomy
GenusXanthoparmelia
Speciesplittii

About plant names...

This lichen is a North American native. It is also found in South America and South Africa.

Identification: This lichen is 1½-4″ (4-10 cm) in diameter, found on exposed or partially shaded rock. It is foliose (leaflike). Tiny, fragile reproductive structures called isidia emerge from the surface. Except for the isidia, this lichen is identical to Xanthoparmelia cumberlandia.

References:

Brodo, Irwin M.; Sharnoff, Sylvia Duran; Sharnoff, Stephen, Lichens of North America, Yale University Press, 2001, p. 739

Online References:

Stephen Sharnoff Photography (excellent photos)

Wikimedia Commons

Parmelia plittii Gyel.

 

Xanthoparmelia plittii description by Thomas H. Kent, last updated 6 Dec 2020.

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Xanthoparmelia plittii (Plitt’s rock shield)

4/10/2010 · Tom & Susan’s, Pepperell, Mass­a­chu­setts · ≈ 4½ × 3″ (11 × 7.9 cm) ID is uncertain

Xanthoparmelia plittii (Plitt’s rock shield)

4/10/2010 · Tom & Susan’s, Pepperell, Mass­a­chu­setts · ≈ 4½ × 3″ (11 × 7.9 cm) ID is uncertain

Xanthoparmelia plittii (Plitt’s rock shield)

4/10/2010 · Tom & Susan’s, Pepperell, Mass­a­chu­setts · ≈ 7 × 4½″ (17 × 11 cm) ID is uncertain

Range:

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