Consortium of Lichen Herbaria
- building a Global Consortium of Bryophytes and Lichens as keystones of cryptobiotic communities -
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Punctelia rudecta (Ach.) Krog  
Family: Parmeliaceae
Rough Speckled Shield Lichen
[Imbricaria rudecta (Ach.) Jatta, moreParmelia borreri subsp. rudecta (Ach.) Fink, Parmelia borreri var. rudecta (Ach.) Tuck., Parmelia rudecta Ach., Parmelia rudecta f. rudecta Ach., Parmelia rudecta var. rudecta Ach.]
Punctelia rudecta image
Stephen Sharnoff
  • Greater Sonoran Desert
  • Resources
Nash, T.H., Ryan, B.D., Gries, C., Bungartz, F., (eds.) 2004. Lichen Flora of the Greater Sonoran Desert Region. Vol 2.
Thallus: foliose, medium sized, to 8 cm; lobate lobes: plane, linear to subirregular, spreading, 4-7 mm upper surface: bluish gray to light mineral gray, shiny, sometimes cracked; margin: tinged with brown, rarely pruinose pseudocyphellae: white, common, irregular in shape, sometimes coalescing isidia: occasional to frequent, short, smooth and corticate, simple to forked or coralloid, brown-tipped, often arising from pseudocyphellae and cortical cracks, not breaking up into soredia-like masses, occasionally becoming extremely dense and "mounded" obscuring the thallus lobes lower surface: pale, white to flesh-colored or more brown; rhizines: simple to forked, concolorous with the lower surface or white Apothecia: very rare and immature in Sonoran material Pycnidia: not seen in Sonoran specimens Spot tests: upper cortex K+ yellow, C-, medulla K-, C+ red Secondary metabolites: upper cortex with atranorin (minor), medulla containing lecanoric acid (major). Substrate and ecology: on rocks (basalt, rhyolite, volcanic) and mosses, or bark (Quercus, Pachycormus, Pinus), 10-2260 m in the Sonoran region World Distribution: widespread, common in North America, Europe, Asia and Australia; (unknown in Antarctica) Sonoran distribution: infrequent in Arizona and occasional in Baja California, Chihuahua, Durango and Sonora. Notes: This species is extremely common and widespread in eastern and southeastern North America (Brodo et al. 2001).
Punctelia rudecta
Open Interactive Map
Punctelia rudecta image
Stephen Sharnoff
Punctelia rudecta image
Stephen Sharnoff
Punctelia rudecta image
Stephen Sharnoff
Punctelia rudecta image
Stephen Sharnoff
Punctelia rudecta image
Stephen Sharnoff
Punctelia rudecta image
Stephen Sharnoff
Punctelia rudecta image
Stephen Sharnoff
Punctelia rudecta image
Stephen Sharnoff
Punctelia rudecta image
Stephen Sharnoff
Punctelia rudecta image
Stephen Sharnoff
Punctelia rudecta image
Stephen Sharnoff
Punctelia rudecta image
Stephen Sharnoff
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Troy McMullin
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Sheila Strawn
Punctelia rudecta image
Sheila Strawn
Punctelia rudecta image
Sheila Strawn
Punctelia rudecta image
Sheila Strawn
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Sheila Strawn
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Sheila Strawn
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Sheila Strawn
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Sheila Strawn
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Sheila Strawn
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Sheila Strawn
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Sheila Strawn
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Sheila Strawn
Punctelia rudecta image
Sheila Strawn
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Sheila Strawn
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Sheila Strawn
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Sheila Strawn
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Gary Perlmutter
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Andrew Khitsun
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Andrew Khitsun
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Andrew Khitsun
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Gary Perlmutter
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Gary Perlmutter
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Gary Perlmutter
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Gary Perlmutter
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This project made possible by National Science Foundation Awards: #1115116, #2001500, #2001394
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