Punctelia rudecta
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Punctelia rudecta, commonly known as the rough speckled shield or the speckleback lichen, is a North American species of foliose lichen in the family Parmeliaceae. This species can be readily identifi
Rough Speckled Shield Lichen
Herbarium specimen showing pseudocyphellae on a lobe and brown coloration of the lobe tip.
Punctelia rudecta growing on oak in Big Run State Park, Maryland
Punctelia missouriensis Flickr pellaea
Punctelia
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Punctelia is a genus of foliose lichens belonging to the large family Parmeliaceae. The genus, which contains about 50 species, was segregated from genus Parmelia in 1982. Characteristics that define
Punctelia rudecta
…the relatively large lobes at the edges of the thallus, and the tiny white pores present on the top of the thallus that are characteristic of the genus Punctelia. The lichen is quite abundant and widespread in the eastern and southeastern United States, and is less common in Canada and Mexico. The lichen usually…
Punctelia borreri
Punctelia appalachensis
Punctelia guanchica