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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
Tephromela arafurensis Rambold

Biblioth. Lichenol. 34: 145 (1989)

T: Robin Falls, 13 km SSE of Adelaide River, N.T., 13°21’S, 131°08’E, on sandstone boulders beside creek in monsoon forest, 24 Mar. 1986, G.Rambold 512; holo: M.

  Thallus crustose, rimose to areolate, white, grey-white or pale greenish white, to 5 cm wide, 0.2–0.5 mm thick. Areolae irregular in outline, 0.5–0.7 mm wide, plane to subconvex, uneven, lacking isidia and soredia. Prothallus not apparent. Apothecia common, scattered, sessile, ±constricted at the base, 0.8–1.2 mm wide; disc ±plane, undulate or weakly convex, ±round, black, ±glossy, epruinose; thalline exciple usually developed, ±persistent, white, dull, rarely reduced; proper exciple colourless, 40–70 µm thick. Epihymenium dark violet-brown. Hymenium colourless to pale violet-brown, 55–65 µm thick, not inspersed. Hypothecium colourless to pale yellow-brown, 150–300 µm thick. Ascospores simple, ellipsoidal, thick-walled, 9–14 × 5–7 µm. Conidia filiform, straight, 11–14 × 1.0–1.5 µm.
CHEMISTRY: Cortex K+ yellow, C–, KC–, P+ pale yellow; medulla K–, C–, KC+ pink, P–, UV+ blue-white; containing atranorin (minor), perlatolic acid (submajor), glomelliferic acid (major), anziaic acid (minor or trace), 4-O-methylolivetoric acid (minor), stenosporic acid (minor).
  This endemic species occurs on sandstone in northern N.T. and the Kimberley region of northern W.A.; found in open Eucalyptus-Terminalia woodland (70–350 m).  
  Elix (2009j)  

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

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