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North American Lichen Herbaria
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Heterodermia speciosa (Wulfen) Trevisan  
Go To Encyclopedia of Life...
Family: Physciaceae
[Alectoria speciosa (Wulfen) A. Massal., moreAnaptychia pseudospeciosa var. tremulans (Müll. Arg.) Kurok., Anaptychia speciosa (Wulfen) A. Massal., Anaptychia speciosa f. brachyloba (Müll.Arg.) Zahlbr., Anaptychia speciosa f. cinerascens (Nyl.) Müll.Arg., Anaptychia speciosa f. cubana B. de Lesd., Anaptychia speciosa f. foliolosa C. Moreau & M. Moreau, Anaptychia speciosa f. isidiophora (Nyl.) Zahlbr., Anaptychia speciosa f. isidiosa (Nyl.) Zahlbr., Anaptychia speciosa f. sorediosa (Müll.Arg.) Zahlbr., Anaptychia speciosa f. spathulata Vain., Anaptychia speciosa f. speciosa (Wulfen) A. Massal., Anaptychia speciosa f. subimbricata (Räsänen) M. Satô, Anaptychia speciosa var. angustiloba (Müll.Arg.) Zahlbr., Anaptychia speciosa var. esorediata Vain., Anaptychia speciosa var. lineariloba Müll.Arg., Anaptychia speciosa var. lobulifera Vain., Anaptychia speciosa var. mexicana B. de Lesd., Anaptychia speciosa var. microspora Kurok., Anaptychia speciosa var. speciosa (Wulfen) A. Massal., Anaptychia speciosa var. stellata Tuck., Borrera speciosa (Wulfen) Mudd, Dimelaena speciosa (Wulfen) Norman, Hagenia speciosa (Wulfen) De Not., Heterodermia pseudospeciosa var. tremulans (Müll. Arg.) Kurok., Imbricaria speciosa (Wulfen) DC., Lichen speciosus Wulfen, Lobaria speciosa (Wulfen) Hoffm., Parmelia speciosa (Wulfen) Ach., Parmelia speciosa f. fagorum Britzelm., Parmelia speciosa f. speciosa (Wulfen) Ach., Physcia speciosa (Wulfen) Nyl., Physcia speciosa f. brachyloba Müll.Arg., Physcia speciosa f. cinerascens Nyl., Physcia speciosa f. coralligera Müll.Arg., Physcia speciosa f. isidiophora Nyl., Physcia speciosa f. pulvinigera Müll.Arg., Physcia speciosa f. sorediosa Müll.Arg., Physcia speciosa f. speciosa (Wulfen) Nyl., Physcia speciosa f. subgranulosa Tuck., Physcia speciosa var. angustiloba Müll.Arg., Physcia speciosa var. dactyliza Nyl., Physcia speciosa var. speciosa (Wulfen) Nyl., Pseudophyscia speciosa (Wulfen) Müll. Arg., Pseudophyscia speciosa var. speciosa (Wulfen) Müll. Arg., Squamaria speciosa (Wulfen) Frege, Xanthoria speciosa (Wulfen) Horw., Xanthoria speciosa var. hypoleuca (Muhl.) Horw., Xanthoria speciosa var. speciosa (Wulfen) Horw.]
Heterodermia speciosa image
Stephen Sharnoff  
  • Greater Sonoran Desert
  • Web Links
Nash, T.H., Ryan, B.D., Gries, C., Bungartz, F., (eds.) 2002. Lichen Flora of the Greater Sonoran Desert Region. Vol 1.
Thallus: foliose, orbicular to irregular, 2-3 (-4) cm diam., often coalescing with other thalli forming colonies up to 15 cm diam., ± firmly adnate, repeatedly dichotomously lobate lobes: linear, elongate, narrow, c. (0.5-) 1-2 mm, flat to convex, end-lobes without soralia, slightly widening towards apices, minutely notched, eciliate upper surface: white to cream-colored or brownish to bluish gray, ± shiny, the lobe-tips sometimes darkening, very rarely pruinose, not ascending, sorediate soredia: abundant, farinose to ± granular, gray to bluish gray, in labiate soralia, on lateral lobes, sometimes semi-capitate, starting from lateral lobules upper cortex: prosoplectenchymatous medulla: white lower cortex: prosoplectenchymatous lower surface: pale to dark brown, rhizinate; rhizines: few, scattered, short and robust, sometimes irregularly branched, usually black Apothecia: rare (not seen in Sonoran material), substipitate, 3-8 mm in diam., margin: crenate or lacinulate; disc: brown to blackish brown asci: cylindrical to clavate, 8-spored ascospores: brown, l-septate, ellipsoid, 30-37 x 14-18 Pycnidia: not seen Spot tests: cortex K+ yellow C-, KC-, P+ yellow; medulla K+ yellow, C-, KC-, P- Secondary metabolites: cortex with atranorin and chloroatranorin; medulla with atranorin, zeorin and an unidentified triterpene. Substrate and ecology: growing on sunny, but moist rocks or on tree trunks in humid conditions World distribution: widely distributed in subtropical to temperate areas, extending to northern Scandinavia (Moberg & Holmåsen 1992) Sonoran distribution: mountains of SE Arizona and the Sierra Madre Occidental region of Chihuahua and Sonora. Notes: It is characterized by the striking contrast between the blue-gray soralia and the paler thallus and the presence of lower cortex. The lower surface of H. obscurata lacks a cortex and has a rusty orange pigment. Heterodermia albicans is much smaller and contains salazinic acid (K+ yellow-red).
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Heterodermia speciosa
Open Interactive Map
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Samuel Brinker  
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Troy McMullin  
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Gary Perlmutter  
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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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This project made possible by National Science Foundation Awards: #1115116