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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
Pyxine schmidtii Vain.

Hedwigia 46: 170 (1907)

T: prope Lem Dan, Ko Chang I., Thailand, ad truncos arboreum in silva, J.Schmidt s.n.; holo: TUR-V 8695 n.v.

Pyxine papuana Kashiw., Bull. Natl. Sci. Mus. Tokyo, B, 3: 68 (1977). T: Wau, Mt Kaindi, Morobe District, Papua New Guinea, 1300 m alt., H.Kashiwadani 10658; holo: TNS.

  Thallus 4–10 cm wide, adnate, subdichotomously lobate. Lobes radiating, discrete or rarely contiguous and imbricate, plane to convex but often slightly concave towards the tips, 0.5–1.2 mm wide, subrotund at the apices. Upper surface white to whitish grey, pruinose, especially towards the lobe tips; dactyls, isidia and soredia absent. Pseudocyphellae marginal and laminal, irregular to linear or becoming reticulate. Medulla white. Lower surface black in the centre, paler towards the margin; rhizines ±dense, furcate. Apothecia common, obscurascens-type, 0.5–2.0 mm wide; disc epruinose. Internal stipe distinct, white to brown, K–, P–. Ascospores 16–20 × 6–8 μm. Pycnidia not seen.
CHEMISTRY: Cortex K+ yellow, C–, KC–, P+ yellow, UV–; medulla K–, C–, P+ orange-red; containing atranorin (minor), chloroatranorin (minor), testacein (major), unknown terpenes (minor).
  Rare on bark in coastal forest in north-eastern Qld. Also in SE Asia and Papua New Guinea.  
  Elix (2009l)  

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

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