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 diploschistoides (Vain.) G.Salisb. | ||
Lichenologist 5: 273 (1972) Thelotrema diploschistoides Vain., Ann. Univ. Fenn. Åbo., ser. A, 2(3): 31 (1926). T: Matoppos, Southern Rhodesia [Zimbabwe], P.A. van der Byl 157; holo: TUR-V 34806. Diploschists almbornii C.W.Dodge, Beih. Nova Hedwigia 12: 106 (1964). T: Camps Bay, Cape Division, Cape Province, South Africa, 5 Sept. 1953, O.Almborn; iso: BM, L, LD, M. |
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Thallus epilithic, to c. 1.7 mm thick, bluish grey to dark grey, glossy to opaque, smooth, rimose-areolate, epruinose. Epinecral layer to c. 40 µm thick. Algal layer continuous, well developed; calcium oxalate crystals sparse, scattered, small. Vegetative propagules not seen. Ascomata conspicuous, blackish, to c. 1.5 mm diam., ±rounded, perithecioid, solitary, immersed. Disc not visible from above. Pores small, to c. 0.2 mm diam., ±rounded; inner and apical proper exciple visible from above, free, black, epruinose to slightly greyish-pruinose. 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 110–170 µm thick, not inspersed, moderately conglutinated; lateral paraphyses to c. 20 µm long. Epihymenium hyaline to pale brown, egranulose. Asci 4–8-spored. Ascospores broadly ellipsoidal, with ±rounded to subacute ends, hyaline to pale brown, strongly amyloid, 30–52 × 15–26 µm, with 4–7 × 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–; containing lecanoric acid (major), diploschistesic acid (minor), ±gyrophoric acid (minor), orsellinic acid (minor). |
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Occurs on exposed, siliceous rocks in northern W.A., N.T., Qld and N.S.W.; also in Central and South America and southern Africa. | ||
Mangold et al. (2009) |
Checklist Index |
Introduction | A–D | E–O | P–R | S–Z | Oceanic Islands | References |
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