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 | ||
| Ramboldia petraeoides (Nyl. ex C.Bab. & Mitt.) Kantvilas & Elix | ||
Bryologist 97: 298 (1994) Lecidea petraeoides Nyl. ex C.Bab. & Mitt., in J.D.Hooker, Fl. Tasman. 2: 352, tab. CC, fig. D (1859); — Protoblastenia petraeoides (Nyl. ex C.Bab. & Mitt.) Hertel, Beih. Nova Hedwigia 79: 452 (1984); — Pyrrhospora petraeoides (Nyl. ex C.Bab. & Mitt.) Hafellner, Herzogia 9: 733 (1993). T: St Patricks River, Tas., R.C.Gunn; holo: BM; iso: H. |
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| Thallus pale to dark brown, irregularly convex, 0.2–3.0 mm thick, unevenly verruculose, deeply cracked and areolate, to 8 cm wide, lacking soredia and isidia, rarely delimited by a dark grey-brown prothallus. Photobiont cells 8–12 µm wide. Apothecia sessile to subimmersed, irregularly rounded, scattered to crowded, 0.5–0.8 (–1.3) mm wide; disc red-brown to dark brown, ±glossy, epruinose, plane to subconvex; margin thin, entire or flexuose, red-brown, ±persistent, but typically becoming inconspicuous in older apothecia. Exciple colourless to pale brown, K+ yellow → red. Epihymenium 10–15 µm thick, brown to red-brown, K+ olive-brown. Hymenium 35–55 µm thick, colourless, K–. Hypothecium colourless, 40–80 µm thick, K–; subhypothecium colourless, to 40 µm thick, K+ yellow → red. Paraphyses branched and anastomosing, c. 1.5 µm thick; apices pale orange-brown-pigmented, swollen, 2.5–3.5 µm thick. Asci 30–45 × 10–12 µm. Ascospores oblong-ellipsoidal, 8.5–11.0 × 3–5 µm. Conidia filiform, 14–17 × c. 0.5 µm. CHEMISTRY: Cortex K+ yellow → red; medulla K+ yellow → red, C–, P+ yellow; containing norstictic acid (major), connorstictic acid (minor or trace). |
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| Common on a wide variety of siliceous rock types in sunny, exposed habitats from sea level to alpine elevations. Occurs in all States and Territories except the N.T.; also in New Zealand, South Africa, the Falkland Islands and Sardinia. | ||
| Elix (2009e) | ||
| Checklist Index |
| Introduction | A–D | E–O | P–R | S–Z | Oceanic Islands | References |
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