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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 microcarpa (Räsänen) Hafellner

Symb. Bot. Upsal. 32(1): 56 (1997)

Sporopodium leucoxanthum var. microcarpum Räsänen, Suom. Elain-ja Kasvit. Seuran Van. Tiedon. Pöytäkirjat 3: 184 (1949).

T: Emu Vale, Qld, on bark, 1890, F.R.M.Wilson; lecto: H n.v., fide J.Hafellner, loc. cit.; isolecto: H, UPS n.v.

  Thallus whitish to grey or slightly greenish, thin, effuse, spreading; lobules and soredia absent. Apothecia common and dispersed, sessile, constricted at the base, 0.5–1.5 mm wide; disc vivid orange, plane; margin prominent, concolorous or paler on the outer side. Exciple stratified; cortical layer only partly penetrated by orange crystals; medullary layer colourless, containing few to many green algal cells 8–10 μm wide. Hymenium colourless, 120–150 μm thick. Hypothecium colourless to slightly brownish. Asci 90–120 × 25–45 μm. Ascospores 70–110 × 25–40 μm. Spore-borne microconidia occasionally present. Pycnidia not seen.
CHEMISTRY: Thallus K+ yellow, C–, P–; apothecia K+ purple-red; apothecial sections, cortex of exciple and epihymenium K+ carmine; thallus containing atranorin, zeorin; apothecia containing parietin.
  Endemic to south-eastern Qld and north-eastern N.S.W.; grows on bark and spreads over epiphytic bryophytes in wet-scelophyll forest and disturbed subtropical rainforest.  
  Elix (2009m)  

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

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