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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
 Hypocenomyce australis Timdal

Nordic J. Bot. 4: 95 (1984)

T: summit of Mt Coree, Brindabella Ra., W of Canberra, A.C.T., 11 Oct. 1967, W.A.Weber & D.McVean, Lich. Exs. No. 272 (as Lecidea friesii); holo: COLO n.v.; iso: BM, O, UPS n.v.

[Hypocenomyce friesii auct. non (Ach.) P.James & Gotth.Schneid.: P.M.McCarthy, Cat. Austral. Lichens 64 (2003)]

  Thallus squamulose, 3–10 cm wide. Squamules 0.3–0.8 mm wide, adnate, not proliferating, plane to moderately convex, white, off-white, pale olive-green to yellow-brown. Soredia and isidia absent. Upper cortex 25–40 μm thick, including an epinecral layer to 15 μm thick. Apothecia common, 0.4–1.2 mm wide, attached to the margins of squamules or directly to the substratum, ±plane; disc black, epruinose or faintly bluish white-pruinose, egyrose; margin persistent, becoming somewhat flexuose, concolorous or rarely partly paler than the disc. Proper exciple colourless within, with a green rim. Epihymenium brownish green. Hypothecium pale brown to dark reddish brown. Mature asci and ascospores not seen. Pycnidia c. 0.1 mm wide, sessile, attached to the squamule margins or directly to the substratum. Conidia filiform, arcuate, 11–16 × c. 1 μm.
CHEMISTRY: Cortex and medulla K–, C+ red, KC+ red, P–; containing lecanoric acid (major), ±orsellinic acid (trace).
  This common, endemic species occurs in all States and the A.C.T.; grows on charred wood and bark or, more rarely, on decorticated wood.  
  Elix (2009f)  

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

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