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- building a Global Consortium of Bryophytes and Lichens as keystones of cryptobiotic communities -
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Cetrelia
Family: Parmeliaceae
Cetrelia image
Troy McMullin
  • Greater Sonoran Desert
  • Resources
Nash, T.H., Ryan, B.D., Gries, C., Bungartz, F., (eds.) 2002. Lichen Flora of the Greater Sonoran Desert Region. Vol 1.
Life habit: lichenised Thallus: foliose, dorsiventral, heteromerous, large (5-25 cm diam.), spreading, loosely attached lobes: subirregular, 0.5-2.5 cm broad, rounded; without marginal cilia upper surface: ashy white to gray or tan, with small, punctiform pseudocyphellae, isidiate or sorediate upper cortex: prosoplectenchymatous [paraplectenchymatous according to Elix (1993)], with a nonpored epicortex, 10-30 micro meter thick medulla: white, loose; cell walls: containing isolichenan, I-; photobiont: primary one a Trebouxia, secondary photobiont absent lower surface: black, shiny, corticate, sometimes punctate, rhizinate; rhizines: simple Ascomata: apothecial, laminal, occasionally marginal, 0.5-4 mm diam., round, stipitate, submarginal, usually perforate; thalline exciple: persistent; hymenium: colorless; paraphyses: unbranched or little branched; hypothecium: hyaline asci: cylindrical, Parmelia-type, unitunicate, thick-walled, I+ blue, tholus I+ blue, 8-spored ascospores: ellipsoid, simple, hyaline, 11-22 (-25) x 6-12 micro meter Pycnidia: marginal, immersed conidia: simple, colorless, 5 x 1 micro meter Secondary metabolites: upper cortex with atranorin and chloroatranorin, medulla with a range of orcinol depsides and depsidones Geography: temperate to tropical; one species boreal-arctic Substrate: on bark or wood, less frequently rocks. Notes: It is characterized by punctiform pseudocyphellae on upper surface, perforate apothecia with large, ellipsoid spores, and bifusiform conidia. It is closely related to Platismatia; distinguished from that genus (at least from P. glauca) by having distinct pseudocyphellae, ± continuously rounded margins, the I- medulla and distinctive medullary chemistry. It may also be mistaken for Parmotrema species, but they lack pseudocyphellae.
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Cetrelia alaskana
Image of Cetrelia alaskana
Cetrelia braunsiana
Image of Cetrelia braunsiana
Cetrelia cetrarioides
Image of Cetrelia cetrarioides
Cetrelia chicitae
Image of Cetrelia chicitae
Cetrelia collata
Image of Cetrelia collata
Cetrelia davidiana
Image of Cetrelia davidiana
Cetrelia delavayana
Image of Cetrelia delavayana
Cetrelia isidiata
Image of Cetrelia isidiata
Cetrelia japonica
Image of Cetrelia japonica
Cetrelia monachorum
Image of Cetrelia monachorum
Cetrelia nuda
Image of Cetrelia nuda
Cetrelia olivetorum
Image of Cetrelia olivetorum
Cetrelia orientalis
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not available
Cetrelia pseudocollata
Image of Cetrelia pseudocollata
Cetrelia pseudolivetorum
Image of Cetrelia pseudolivetorum
Cetrelia rhytidocarpa
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not available
Cetrelia sanguinea
Image of Cetrelia sanguinea
Cetrelia sayanensis
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not available
Cetrelia sinensis
Image of Cetrelia sinensis

 

This project made possible by National Science Foundation Awards: #1115116, #2001500, #2001394
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