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 | ||
| Diploschistes euganeus (A.Massal.) J.Steiner | ||
Verh. Zool.-Bot. Ges. Wien 169: 96 (1919) Limboria euganea A.Massal., Ric. Auton. Lich. Crost. 155 (1852); — Urceolaria euganea (A.Massal.) Jatta, Syll. Lich. Ital. 289 (1900). T: “ad saxa trachytica in Eiganeis”, [Italy], A.Massalongo, Lich. Ital. Exs. 79; lecto: L, fide H.T.Lumbsch, J. Hattori Bot. Lab. 66: 169 (1989); isolecto: BM, M, UPS, WELT. |
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| Thallus endolithic to epilithic, to c. 0.9 mm thick, grey to greyish brown, dull to slightly glossy, smooth, continuous to rimose-areolate, epruinose. Epinecral layer to c. 20 µm thick. Algal layer continuous, well developed; calcium oxalate crystals sparse, scattered, small to large. Vegetative propagules not seen. Ascomata conspicuous, blackish, to c. 1.8 mm diam., ±rounded, perithecioid, solitary, immersed. Disc not visible from above. Pores minute, to c. 0.1 mm diam., ±rounded; inner and apical proper exciple visible from above, free, black, epruinose. Thalline rim margin thin, ±rounded, concolorous with and having the same surface features as the thallus, immersed. Proper exciple free, thick, blackish brown, non-amyloid. Hymenium 100–140 µm thick, not inspersed, moderately conglutinated; lateral paraphyses conspicuous, to c. 30 µm long. Epihymenium hyaline to pale brown, egranulose. Asci (6–) 8-spored. Ascospores broadly ellipsoidal, with ±rounded ends, hyaline to brown, non-amyloid, 16–32 × 10–20 µm, with 3–6 × 1–4 locules; locules ±rounded to angular; septa thick, regular; ascospore wall thin to thick; endospore thick. Pycnidia not seen. CHEMISTRY: Thallus K–, C– red, P–; no secondary metabolites detected by TLC. |
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| Occurs on exposed, siliceous rocks in semi-arid and arid regions of southern Australia (W.A., S.A., N.S.W. and Vic.); subcosmopolitan. | ||
| Mangold et al. (2009) | ||
| Checklist Index |
| Introduction | A–D | E–O | P–R | S–Z | Oceanic Islands | References |
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