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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
Dirinaria batavica D.D.Awasthi

Biblioth. Lichenol. 2: 42 (1975)

T: Batavia [Djakarta], Java, [Indonesia], on tile, 9 May 1941, P.Groenhart 1763; holo: L, not located.

  Thallus 2–7 cm wide, very tightly adnate, pinnately to subpinnately lobate. Lobes radiating, contiguous, longitudinally plicate and rugose, ±plane or slightly concave towards the tips, 0.2–0.8 (–1.0) mm wide, distinctly flabellate at the apices. Upper surface grey to yellow-grey at the periphery, grey-brown to dark brown towards the centre, ±pruinose, becoming ±subcrustose, verrucose and areolate in the centre; soredia and dactyls absent. Medulla white or the lower medulla yellow-orange in part. Lower surface pale brown to brown-black or black. Apothecia common, initially sessile, becoming substipitate, 0.1–0.5 mm wide; disc black, epruinose. Epihymenium dark brown, c. 10 μm thick. Hymenium colourless, 80–100 μm thick. Hypothecium pale brown, 60–80 μm thick. Ascospores 10–16 × 4.5–6 μm. Conidia bacilliform, 3.5–5.0 × c. 0.8 μm.
CHEMISTRY: Cortex K+ yellow, C–, KC–, P+ yellow; medulla K–, C–, KC–, P–; containing atranorin (minor), chloroatranorin (minor), divaricatic acid (major), 3β-acetoxyhopane-1β,22-diol (minor),±skyrin (minor), ±unknown terpenes (minor).
  Occurs on rocks in the Pilbara and Kimberley regions of W.A. and in coastal and hinterland areas of the N.T. and north-western Qld. Also in Indonesia.  
  Elix (2009l)  

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

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