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Peltigera
Family: Peltigeraceae
Peltigera image
Andrew Khitsun
  • 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.
Life habit: lichenized Thallus: large foliose, rarely small to almost squamulose, approximately circular in outline, (1-)2-30 cm in diam., sometimes forming extensive mats among mosses that may extend for several meters, usually lobate lobes: +flattened and elongate (5-15 mm wide and up to 5 cm long), often dichotomously branched, imbricate or separate; tips: rounded to subtruncate, often ascending upper surface: gray, bluish gray, grayish brown to brown when dry, bluish gray, blackish green or bright green when wet, smooth, dull or shiny, +scabrid, tomentose or pruinose; with or without isidia or soredia upper cortex: paraplectenchymatous medulla: white, +loosely interwoven hyphae photobiont: primary one usually Nostoc but a few species with the chlorococcoid green alga (Coccomyxa) and then with Nostoc as a secondary photobiont in cephalodia lower cortex: absent lower surface: brownish white, densely arachnoid-tomentose or with anastomosing pale or dark brown to black veins, rhizinate; rhizines: white, brown or black, simple, bushy or fasciculate Ascomata: apothecial, frequent, ovoid, semi-immersed, marginal, often at lobe tips or on ascending lobules, up to 10 mm in diam., hemiangiocarpic; margin: smooth to crenulate disc: saddle-shaped, flat or oval, red-brown to black, smooth, paler marginally true exciple: paraplectenchymatous, 100-135 µm wide, marginal cells with short hairs hymenium: brown above, colorless below, K-, I+ blue; paraphyses: septate, simple, 2-3 µm wide, +swollen at the apices and pigmented asci: cylindrical, fissitunicate, Peltigera-type, the apex of the endoascus with a K/I+ blue annulus, 8-spored ascospores: fusiform to acicular, colorless, 3-many septate, 25-75 x 3-7 µm Conidiomata: pycnidial, brown above, pale below, immersed, up to 2 mm in diam. conidia: bacilliform or slightly bifusiform, colorless, simple, 4-10 x 2-4 µm Secondary metabolites: hopane triterpenoids and tridepsides or none detected Geography: world-wide in moist habitats, especially cool temperate ones in North and South America, Europe, Asia, Australasia and Africa Substrate: most often on soil and among mosses over rocks, rarely on tree trunks.
Show all taxa || << 51 - 100 taxa >>
Peltigera genuina
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Peltigera globulata
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Peltigera granulosa
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Peltigera hilleri
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Peltigera horizontalis
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Peltigera hydrothyria
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Peltigera hymenina
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Peltigera islandica
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Peltigera kenyensis
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Peltigera kerguelensis
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Peltigera koeroesi-csomae
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Peltigera koponenii
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Peltigera körilsi-csomae
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Peltigera kristinssonii
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Peltigera kukwae
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Peltigera laciniata
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Peltigera lactucifolia
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Peltigera lairdi
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Peltigera lairdii
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Peltigera lambinonii
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Peltigera laminata
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Peltigera latiloba
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Peltigera lepidophora
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Peltigera leptoderma
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Peltigera leucophlebia
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Peltigera leucorrhiza
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Peltigera limbata
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Peltigera lyngei
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Peltigera macra
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Peltigera magyarica
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Peltigera malacea
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Peltigera massonii
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Peltigera mauritzii
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Peltigera melanocoma
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Peltigera melanorrhiza
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Peltigera membranacea
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Peltigera meridiana
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Peltigera mexicana
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Peltigera microdactyla
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Peltigera microphylla
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Peltigera molesta
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Peltigera mollis
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Peltigera monticola
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Peltigera montis-wilhelmii
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Peltigera nana
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Peltigera neckeri
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Peltigera neopolydactyla
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Peltigera nigripunctata
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Peltigera nouletii
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Peltigera novae-angliae
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This project made possible by National Science Foundation Awards: #1115116, #2001500, #2001394
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