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North American Lichen Herbaria
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Heterodermia
Family: Physciaceae
Heterodermia image
Stephen Sharnoff  
  • Greater Sonoran Desert
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Nash, T.H., Ryan, B.D., Gries, C., Bungartz, F., (eds.) 2002. Lichen Flora of the Greater Sonoran Desert Region. Vol 1.
Thallus: foliose to subfruticose, small to medium sized, moderately to very loosely attached, sometimes combining to form extensive, radiating mats, lobate lobes: linear to sublinear, elongate to shorter, discrete or contiguous; tips rounded or flabellate, sometimes ascending, with or without marginal cilia; cilia: black or pale upper surface: white, ivory white or gray to dark greenish brown, with or without pruina, with or without soredia or isidia upper cortex: prosoplectenchymatous, composed of periclinal hyphae medulla: white or sometimes yellow pigmented photobiont: primary one a trebouxioid alga, secondary photobiont absent lower cortex: lacking or prosoplectenchymatous, but sometimes only weakly organized and poorly differentiated from the medulla lower surface: surface pale or darkening; sparsely to rather densely rhizinate; rhizines: pale or darkening, simple or branched, sometimes protruding beyond the margin as seen from above Apothecia: present or absent, with a thalline exciple; subhymenium: hyaline asci: cylindrical, subclavate to clavate, Lecanora-type, 8-spored ascospores: , smooth, brown, thick walled, 1-septate, 15-54 x 7-25 µm Pycnidia: blackened and immersed conidia: bacilliform to short-cylindrical, 4-6 x ± 1 µm Secondary metabolites: terpenoids; ß-orcinol depsides and ß-orcinol depsidones and various pigments Geography: primarily pantropical with a few species extending into temperate areas, North America, Europe, Australasia, Asia and Africa Substrate: bark or wood, rock or rarely soil. Notes: Kurokawa (1962) published a definitive world monograph of the genus Anaptychia in which 72 predominately tropical species were treated. Subsequently, that genus was recognized as heterogeneous by Poelt (1965), who separated the genus Heterodermia with smooth, thick-walled spores and the constant occurrence of atranorin in the upper cortex from Anaptychia, all species of which have Physconia-type spores and lack atranorin in the upper cortex. All but nine of Kurokawa’s originally recognized species have been transferred to Heterodermia. This delimitation is now widely accepted, and also by Kurokawa (1998).
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Heterodermia albicans
Image of Heterodermia albicans
Heterodermia albidiflava
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Heterodermia albopruinosa
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Heterodermia allardii
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Heterodermia andina
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Heterodermia angustiloba
Image of Heterodermia angustiloba
Heterodermia antillarum
Image of Heterodermia antillarum
Heterodermia appendiculata
Image of Heterodermia appendiculata
Heterodermia arvidssonii
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Heterodermia awasthii
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Heterodermia badia
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Heterodermia barbifera
Image of Heterodermia barbifera
Heterodermia chilensis
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Heterodermia chondroidea
Image of Heterodermia chondroidea
Heterodermia comosa
Image of Heterodermia comosa
Heterodermia congoensis
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Heterodermia corallophora
Image of Heterodermia corallophora
Heterodermia coronata
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Heterodermia crocea
Image of Heterodermia crocea
Heterodermia cyathiformis
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Heterodermia dactyliza
Image of Heterodermia dactyliza
Heterodermia desertorum
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Heterodermia detonsa
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Heterodermia diademata
Image of Heterodermia diademata
Heterodermia dispansa
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Heterodermia dissecta
Image of Heterodermia dissecta
Heterodermia domingensis
Image of Heterodermia domingensis
Heterodermia echinata
Image of Heterodermia echinata
Heterodermia erecta
Image of Heterodermia erecta
Heterodermia erinacea
Image of Heterodermia erinacea
Heterodermia fauriei
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Heterodermia firmula
Image of Heterodermia firmula
Heterodermia flabellata
Image of Heterodermia flabellata
Heterodermia flavosquamosa
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Heterodermia follmannii
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Heterodermia fragilissima
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Heterodermia galactophylla
Image of Heterodermia galactophylla
Heterodermia granulifera
Image of Heterodermia granulifera
Heterodermia himalayensis
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Heterodermia hypocaesia
Image of Heterodermia hypocaesia
Heterodermia hypochraea
Image of Heterodermia hypochraea
Heterodermia incana
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Heterodermia indica
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Heterodermia isidiophora
Image of Heterodermia isidiophora
Heterodermia isidiosa
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Heterodermia kalbii
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Heterodermia koyana
Image of Heterodermia koyana
Heterodermia kurokawae
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Heterodermia lamelligera
Image of Heterodermia lamelligera
Heterodermia lepidota
Image of Heterodermia lepidota

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