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Parmelia saxatilis (L.) Ach.  
Familia: Parmeliaceae
[Geissodea saxatilis (L.) J. St.-Hil., moreImbricaria saxatilis (L.) Körb., Imbricaria saxatilis f. nigrescens Britzelm., Imbricaria saxatilis f. saxatilis (L.) Körb., Imbricaria saxatilis var. omphalodes (L.) Körb., Imbricaria saxatilis var. saxatilis (L.) Körb., Lichen laciniatus var. saxatilis (L.) Weiss, Lichen saxatilis L., Parmelia quercina f. furfuracea (Schaer.) Zahlbr., Parmelia saxatilis f. caesiopruinosa Nyl. ex Cromb., Parmelia saxatilis f. furfuracea Schaer., Parmelia saxatilis var. aizonii Delise ex Duby, Parmelia saxatilis var. furfuracea (Schaer.) Linds., Parmelia saxatilis var. panniformis , Parmotrema saxatile (L.) M. Choisy, Parmotrema saxatile var. aizoni (Delise) M. Choisy, Parmotrema saxatile var. saxatile (L.) M. Choisy, Platysma saxatile (L.) Frege]
Parmelia saxatilis image
Samuel Brinker
  • Greater Sonoran Desert
  • IUCN Red-List Assessment
  • Recursos
Nash, T.H., Ryan, B.D., Gries, C., Bungartz, F., (eds.) 2002. Lichen Flora of the Greater Sonoran Desert Region. Vol 1.
Thallus: adnate, foliose, 4-20 cm in diam., lobate lobes: sublinear, contiguous, elongate, plane to subconvex, separate, 2-4 mm wide, apices truncate upper surface: gray (to brown in exposed habitats), smooth to foveolate, shiny, sometimes white pruinose, becoming cracked along prominent, effigurate pseudocyphellae isidia: cylindrical, simple to coralloid, abundant, laminal, dense; soredia and pustulae absent medulla: white with continuous algal layer lower surface: black, rhizinate, rhizines: moderately dense, black, simple to furcate Apothecia: rare, laminal, 2-8 mm wide; margin: usually isidiate; disc: red-brown to dark brown asci: clavate, 8-spored ascospores: ellipsoid, 16-18 x 9-11 µm Pycnidia: not seen Spot tests: upper cortex K+ yellow, C-, KC-, P+ yellow; medulla K+ yellow turning deep red, C-, KC-, P+ orange Secondary metabolites: upper cortex with atranorin and chloroatranorin; medulla with salazinic acid (major) and consalazinic acids (minor). Substrate and ecology: on rocks in open habitats, rarely on trees World distribution: pantemperate and southern boreal Sonoran distribution: relatively rare on scree rocks in upper montane habitats, Arizona.
Assessed as Least Concern (LC), ver 3.1

Find out more about the IUCN Red List Categories and Criteria here.

Parmelia saxatilis
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Stephen Sharnoff
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Lucy Taylor
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Stephen Sharnoff
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Stephen Sharnoff
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Stephen Sharnoff
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Stephen Sharnoff
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Stephen Sharnoff
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Stephen Sharnoff
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Stephen Sharnoff
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Stephen Sharnoff
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Stephen Sharnoff
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Stephen Sharnoff
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Stephen Sharnoff
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