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Australian Biological Resources Study

Checklist of the Lichens of Australia and its Island Territories
Introduction | A–D | E–O | P–R | S–Z | Oceanic Islands | References
Brigantiaea phaeomma (Nyl.) Hafellner

Symb. Bot. Upsal. 32(1): 61 (1997)

Lecidea phaeomma Nyl., Lich. Nov. Zel. 90 (1888).

T: locality unknown, New Zealand, 1867, C.Knight;holo: H n.v.

  Thallus white to grey-green or cream, dull, thin, spreading; lobules and soredia absent. Apothecia sessile, constricted at the base, 0.5–2.5 mm wide; disc dark rust-brown to blackish, with a rust-brown granular pruina, ±plane; margin prominent, concolorous or slightly darker than the disc. Exciple biatorine; cortical layer with brown crystals on the surface; medullary layer colourless. Hymenium colourless, 130–220 μm thick. Hypothecium pale to reddish brown. Asci 130–170 × 40–60 μm. Ascospores 100–160 × 30–55 μm. Spore-borne microconidia and pycnidia not seen.
CHEMISTRY: Thallus K+ yellow, C–, P–; apothecia K+ purple; apothecial sections, upper part of exciple and epihymenium K+ purple; thallus containing atranorin, caloploicin, vicanicin, ±isofulgidin (trace), ±fulgidin (trace); apothecia containing parietin.
  Grows on bark and over corticolous bryophyes in montane rainforest in south-eastern Qld; very common in New Zealand. Also in the Juan Fernandez Islands, south-eastern Pacific Ocean, as well as Chile and Argentina.  
  Elix (2009m)  

Checklist Index
Introduction | A–D | E–O | P–R | S–Z | Oceanic Islands | References

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