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 | ||
| Fuscidea ramboldioides Kantvilas | ||
| Biblioth. Lichenol. 78: 182 (2001). T: summit of Mt Freycinet, Tas., 42°13’S, 148°18’E, 7 Nov. 1999, G.Kantvilas 358/99; holo: HO; iso: BM, GZU. | ||
| Thallus pale to dingy greyish brown, sometimes olive-brown, forming widespreading discontinuous patches from a few centimetres to almost 1 m wide, usually markedly rimose-areolate, often rather abraded and scurfy, esorediate, 120–150 mm thick; prothallus poorly developed, at best forming a blackish marginal band c. 0.3 mm wide; photobiont cells ±roundish to oblong, (8–) 10–16 µm wide; medulla I–. Apothecia scattered, sessile, constricted at the base, 0.2–0.6 mm wide, 170–260 mm thick, roundish, at times rather deformed and contorted; disc plane, black; margin ±concolorous with the disc or somewhat paler and brownish, thick and inrolled when young, persistent, sometimes rather flexuose. Excipulum in section 40–70 mm thick, pale to dark brown, darker at the outer edge, with the pigment somewhat olive-brown in KOH. Hypothecium hyaline, 40–80 mm thick, inspersed with abundant oil droplets 2–5 µm wide. Hymenium hyaline to pale brown, 60–70 mm thick, with a dark brown epihymenial layer 10–20 mm thick. Paraphyses simple or occasionally forked, 2.0–2.5 mm thick, with apices swollen to 3.0–4.5 mm and pigmented brown. Asci 40–55 × 15–22 mm, ellipsoidal to rather pear-shaped. Ascospores variable, oblong-ellipsoidal with rather abruptly rounded apices, sometimes bean-shaped and very rarely with a slight medial constriction, 9–15 × 4–8 µm, colourless and simple when young but commonly pale brown and 1 (or 2)-septate at maturity, sometimes becoming scabrid and ornamented when old. Pycnidia immersed. Conidia ellipsoidal, 3.5–4.0 × 2 µm. CHEMISTRY: Medulla K–, KC–, C–, Pd–, UV+ faint white; containing divaricatic acid. | ||
| Locally abundant on granite at the type locality in eastern Tas. and on sandstone in the Blue Mountains, N.S.W.; also on schist in south-western W.A.; occurs in dry-sclerophyll vegetation on large rock slabs, vertical, exposed faces or in sheltered, moist overhangs. | ||
| Kantvilas (2004e) | ||
| Checklist Index |
| Introduction | A–D | E–O | P–R | S–Z | Oceanic Islands | References |
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