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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
Buellia subcrassata (Pusswald) Elix

Fl. Australia 57: 660 (2009)

Hafellia subcrassata Pusswald, in B.Marbach, Biblioth. Lichenol. 74: 283 (2000).

T: Kerry, Duck Creek Rd, near Lamington Natl Park, close to O’Reillys Mountain Resort, Qld, 18 Aug. 1993, H.Mayrhofer 11385, E.Hierzer & R.W.Rogers; holo: CANB.

  Thallus corticolous or lignicolous, 2–5 cm wide, thin, continuous to rimose and areolate, white, grey-white, grey or pale yellow-grey, often with brown granules on the surface. Prothallus not apparent. Apothecia 0.2–0.9 mm wide, sessile; disc black, epruinose, plane or becoming convex; margin black, moderately thick at first, persistent or excluded in convex apothecia. Proper exciple dark red-brown, paler in the inner part. Epihymenium 10–20 μm thick, brown, K–. Hymenium 120–150 μm thick, inspersed with oil droplets. Hypothecium 40–60 μm thick, dark brown. Asci 8-spored, occasionally with fewer ascospores. Ascospores 1-septate, 26–32 × 9–12 μm, with weak subapical and septal wall thickenings; outer wall moderately ornamented. Conidia bacilliform, 5–7 × c. 1 μm.
CHEMISTRY: Thallus K+ red, P+ yellow or yellow-orange; containing norstictic acid (major), connorstictic acid (minor or trace), ±4,5-dichlorolichexanthone (trace).
  Occurs on bark and wood in rainforest in south-eastern Qld and Tas.; also in Central America.  
  Elix (2009l)  

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

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