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Stereocaulon nanodes Tuck.

Stereocaulon nanodes Tuck.

Synonyms:

Stereocaulon carinthiacum Frey

Stereocaulon tyroliense (Nyl.) Lettau



Family: STEREOCAULACEAE

Habitat: Montane

Description

    Primary thallus persitent, composed of swollen phyllocladia (squamule-like structures specific to Stereocaulon), roughly granulose, more or less erect, lower surface sorediated, grey-greenish when moist, pale grey when dry; pseudopodetia scarce, short, 0.5-1 cm tall, more or less branched, with yellow-green globose soralia, sometimes with Stigonema-like granulose grey-bluish cephalodia. Apothecia very scarce. Thallus: C-, K+ pale yellow, KC+ purple (unconspicuous in the field), Pd+ yellow, UV+ whitish. Saxicolous, montane trends, on sheltered walls, more or less horizontal or flat slope siliceous rocks, enriched in metals (Fe, Mn, ...), notably in our prospection area on rocks of slag heaps of ancient slate quarries. N.B. In the field, rather similar to Trapelia glebulosa that grows in the same habitat but is C+ red. See also Stereocaulon pileatum with a distintive large apical soredia on pseudopodetium.





Stereocaulon nanodes Tuck.

Stereocaulon nanodes Saint-Cadou 1
Bernard BOUFFINIER

Stereocaulon nanodes Tuck.

Stereocaulon nanodes Saint-Cadou 2
Bernard BOUFFINIER

Stereocaulon nanodes Tuck.

Stereocaulon nanodes Sur schiste riche en fer Monthermé 2
Jacques HAINE

Stereocaulon nanodes Tuck.

Stereocaulon nanodes Saint-Cadou 4
Bernard BOUFFINIER

Stereocaulon nanodes Tuck.

Stereocaulon nanodes Saint-Cadou 5
Bernard BOUFFINIER

Stereocaulon nanodes Tuck.

Stereocaulon nanodes Sur schiste riche en fer Monthermé 1
Jacques HAINE

Stereocaulon nanodes Tuck.

Stereocaulon nanodes Saint-Cadou 7
Bernard BOUFFINIER

Stereocaulon nanodes Tuck.

Stereocaulon nanodes Saint-Cadou 8
Bernard BOUFFINIER

Stereocaulon nanodes Tuck.

Stereocaulon nanodes Saint-Cadou 9
Bernard BOUFFINIER

Stereocaulon nanodes Tuck.

Stereocaulon nanodes Ergué-Gaberic 1
Bernard BOUFFINIER

Stereocaulon nanodes Tuck.

Stereocaulon nanodes Ergué-Gaberic 2
Bernard BOUFFINIER

Stereocaulon nanodes Tuck.

Stereocaulon nanodes Sur schiste riche en fer Monthermé 3
Jacques HAINE

Stereocaulon nanodes Tuck.

Stereocaulon nanodes Sur schiste riche en fer Monthermé 4
Jacques HAINE



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