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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
Leptogium azureum (Sw. ex Ach.) Mont.
  in Webb & Berthelot, Hist. Nat. Îles Canaries 3: 129 (1840)
Lichen azureus Sw. ex Ach., Lichogr. Suec. Prodr. (1798). T: Jamaica, O.Swartz; lecto: UPS, iso: BM, fide P.M.Jørgensen & P.W.James, Lichenologist 15: 115 (1983).
  Thallus foliose, loosely adnate, 2–10 cm wide, 50–100 µm thick, leaden grey to bluish. Lobes usually rotund, 1–6 mm wide; margins usually entire, often undulate; surfaces smooth or roughened, ±matt; isidia absent. Lower surface naked or with sparse, tufted rhizines. Apothecia laminal, sessile to shortly pedicellate, 1.5–2.5 mm wide; disc, concave, flat or finally strongly convex and hiding exciple, pale to dark red-brown; thalline exciple smooth, usually cream; pedicel sometimes wrinkled, to 0.7 mm long, ±half apothecial wide. Ascospores ellipsoidal, submuriform, 14–26 × 6–9 µm; apices acute. Pycnidia submarginal. Conidia 2–3 µm long; apices not swollen.
  A pantropical species, moderately widespread in Qld and north-eastern N.S.W., less common southwards into Vic.; also in Christmas Is. Grows on bark and rock.  
  Verdon (1992b)  

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

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