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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 consimilis (Stirt.) D.D.Awasthi

in D.D.Awasthi & M.R.Agarwal, J. Indian Bot. Soc. 49: 135 (1970)

Physcia consimilis Stirt., Proc. Roy. Philos. Soc. Glasgow 11: 310 (1879); Pyxine consimilis (Stirt.) Stirt., Trans. & Proc. New Zealand Inst. 30: 395 (1898).

T: near Chinsurah, India, on bark of Artocarpus integrifolia tree, G.Watt 111; lecto: GLAM n.v., fide D.D.Awasthi, Biblioth. Lichenol. 2: 91 (1975); isolecto BM.

  Thallus 5–13 cm wide, adnate, subdichotomously to subpinnately lobate. Lobes radiating, contiguous, plane to convex but often concave towards the tips, 0.5–2.0 mm wide, distinctly flabellate towards the apices. Upper surface grey, bluish grey to yellow-grey or off-white, ±pruinose, dactylate and ±sorediate; dactyls clavate, bursting open at the apices and producing corticated granules and soredia, eventually apically crateriform. Medulla white in the upper part; lower medulla ±orange towards the apices. Lower surface black in the centre, pale brown at the margins. Apothecia rare, sessile, 0.5–1.5 mm wide; disc dark brown to brown-black, rarely grey-pruinose. Epihymenium pale brown, 9–10 μm thick. Hymenium colourless, 70–80 μm thick. Hypothecium dark brown to brown-black, lentiform, 180–220 μm thick. Ascospores 14–23 × 6–8 μm. Conidia bacilliform, 4–5 × 0.8–1.0 μm.
CHEMISTRY: Cortex K+ yellow, C–, KC–, P+ yellow; medulla K–, C–, KC–, P–; containing atranorin (minor), chloroatranorin (minor), sekikaic acid (major), 4’-O-demethylsekikaic acid (minor), homosekikaic acid (trace), 3β-acetoxyhopane-1β,22-diol (minor),±unknown terpenes (minor).
  This pantropical-subtropical species usually occurs on bark or wood and rarely on rocks in monsoon vine forest in the N.T. and in coastal and montane forest in Qld and N.S.W. Also in Africa and Asia.  
  Elix (2009l)  

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

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