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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 stenosporonica Elix & Kalb

Australas. Lichenol. 58: 27 (2006)

T: Litchfield Natl Park, Tabletop Ra., 39 km SW of Batchelor, N.T., 13°12’S, 130°41’E, on sandstone in rocky plateau with Eucalyptus, Terminalia, Calytrix and Ficus, 4 July 1991, J.A.Elix 27662; holo: CANB; iso: DNA.

  Thallus crustose, rimose to areolate, grey-white to yellow-grey, grey-brown or dark grey, to 5 cm wide, 0.4–1.0 mm thick. Areolae angular, irregular or rounded, 0.3–1.0 mm wide, plane and smooth to markedly convex and bullate, ±becoming white-pruinose along ridges and margins of the areolae, lacking isidia and soredia. Prothallus black, prominent between bullae and around the thallus margin, or not apparent. Apothecia common, scattered, sessile, 0.6–2.0 mm wide; disc ±plane, undulate or weakly convex, round, glossy black, epruinose; thalline exciple prominent, persistent, smooth, ±folded over the disc; proper exciple poorly defined, colourless, 100–200 µm thick. Epihymenium violet-black. Hymenium violet, 45–55 µm thick. Hypothecium yellow to yellow-brown, 130–180 µm thick. Ascospores simple, ellipsoidal, thick-walled, 11–13 × 7–9 µm. Conidia cylindrical to filiform, straight, 10–14 × c. 1 µm.
CHEMISTRY: Cortex K+ yellow, C–, KC–, P–; medulla K–, C–, KC+ pink, P–, UV+ blue-white; containing atranorin (minor), stenosporonic acid (major), colensoic acid (minor), divaronic acid (minor), glomelliferonic acid (trace), loxodellonic acid (trace).
  This endemic species occurs on sandstone in northern N.T. and in the Kimberley region of northern W.A.; found in open, Eucalyptus-Terminalia woodland at altitudes of 120–180 m.  
  Elix (2009j)  

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

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