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Perforated Ruffle / Parmotrema Lichen

Parmotrema perforatum group

Description:

Foliose lichen, ca 8-10 cm in diam., lobate. Lobes separate, 10-20 mm wide, with irregular margins, slightly overlapping, ciliate. Upper surface: pale green, slightly wrinkled, matt. Apothecia prominent, up to 50 mm diameter; margin finely irregular, with a deep green disk that is perforated.

Habitat:

Growing on a small branch, ca. 2.5-3 cm diameter, that had fallen from a tree during a recent storm.

Notes:

‘The current taxonomy of the Parmotrema perforatum group of lichens recognizes six closely related species divided into three species pairs, a pair comprising one apotheciate and one sorediate species. Each pair is characterized by a distinct combination of lichen acids.’ Widhelm TF. Testing Species Delimitations in the Parmotrema Perforatum Group (Parmeliaceae, Ascomycota) in Eastern North America. Thesis Dissertation. University of Nebraska, Omaha, NE.

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PucaK
Spotted by
PucaK

Georgia, USA

Spotted on Mar 10, 2017
Submitted on Mar 13, 2017

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