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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
Lobaria isidiophora Yoshim.
  J. Hattori Bot. Lab. 34: 276 (1971); Lobaria meridionalis Vain. var. minor Räsänen, Arch. Soc. Zool. Bot. Fenn. "Vanamo" 3: 82 (1949). T: Mt Polis, Prov. Ifugao, Luzon, Philippines, R.C.McGregor 20338; holo: H n.v.  
  Thallus adnate centrally, ±free at the margins, 10–15 cm wide. Lobes sublinear, irregularly to dichotomously branched, 4–10 mm wide; apices rotund to subrotund; margins entire, subascending. Upper surface brownish black when wet, olive-brown to tan when dry, dull, distinctly reticulate-faveolate, with conspicuous interconnecting ridges, lacking soredia and phyllidia; isidia sparse to moderately dense, erect, cylindrical, fragile, becoming coralloid-branched, to 0.6 mm tall, mainly on reticulate ridges. Photobiont green. Lower surface pale brown with bullate glabrous areas separated by a network of dark brown tomentum, sparsely to densely rhizinate centrally; rhizines simple or squarrosely branched, dark brown. Apothecia rare on ridges of lobes, 3–5 mm wide; disc plane, red-brown; thalline exciple ±isidiate; margin entire. Ascospores fusiform, 3-septate at maturity, 20–22 × 5–6 µm, colourless. Pycnidia not seen in Australian material. CHEMISTRY: Cortex K+ pale yellow; medulla K+ yellow, C+ pink, KC+ pale red, P+ orange; containing gyrophoric acid (major), stictic acid (major), constictic acid (minor), norstictic acid (minor) and cryptostictic acid (trace).
  Scattered in coastal and hinterland forests of eastern Australia (Qld, N.S.W. and A.C.T.); grows on bark and more rarely on moist rocks. This subtropical-temperate species also occurs in the Philippines, Papua New Guinea and Malaysia (Sabah).  
  Elix (2001a)  

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

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