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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
Relicina filsonii Elix & J.Johnst.
  Mycotaxon 27: 615 (1986)
T: Kerripit River, Gloucester Tops, N.S.W., 15 Jan. 1969, R.B.Filson 11174; holo: MEL.
  Thallus foliose, adnate, to 5 cm wide. Lobes contiguous centrally, separate at periphery, not imbricate, linear-elongate, subdichotomously branched, 1.5–3 mm wide, lacking lobules; cilia dense, conspicuous, to 2 mm long, black. Upper surface yellow-green to yellow-brown after storage, flat to weakly convex, shiny at lobe apices, smooth, weakly maculate, lacking isidia. Lower surface brown to dark brown; rhizines dense, simple or occasionally sparingly dichotomously branched, brown to black. Apothecia common, to 3 mm wide; disc ±flat or shallowly concave, cinnamon-brown; thalline exciple ecoronate, retrorsely rhizinate. Ascospores ellipsoidal, 7–9 × 4–6 µm. Pycnidia common, flat to slightly emergent, punctiform, to 0.05 mm wide. Conidia bifusiform, 6–8 × 1 µm. CHEMISTRY: cortex K-, UV-; medulla K+ yellow then dark red, C-, P+ orange; containing usnic acid, norstictic acid (major), connorstictic acid (minor) and hyposalazinic acid (trace).
  Endemic; very rare in the coastal ranges of central and southern N.S.W.; also in Lord Howe Is. Grows on the bark of canopy branches of temperate rainforest trees.  
  Elix (1994v)  

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

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