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 elixii Kantvilas | ||
| Fl. Australia 56A: 209 (2004). T: c. 1 km W of Mt Banda Banda, N.S.W., alt. 1050 m, on canopy twigs of Nothofagus moorei in rainforest, 6 July 1988, G.Kantvilas 486/88; holo: HO; iso: NSW. | ||
| Thallus pale brown, developing a pinkish brown tinge with age, composed of irregular convex contiguous to somewhat dispersed areoles 0.25–0.50 mm wide, 140–300 µm thick, forming irregular patches to c. 3 cm wide, esorediate, delimited by a diffuse blackish marginal prothallus 0.5–1.0 mm wide; photobiont cells ±roundish, 8–15 µm wide; medulla K+ pale yellow, I–. Apothecia scattered, sessile, constricted at the base, roundish or irregularly lobed, 0.2–1.0 mm wide, 180–320 µm thick; disc plane, undulate to convex in the oldest apothecia, dark brown to black, epruinose; margin persistent, concolorous with the disc or rarely a little paler, sometimes flexuous, ±level with or extending slightly above the disc. Excipulum in section 20–30 (–50) µm thick, pale yellow-brown ±throughout, K+ pale yellowish. Hypothecium hyaline to pale brownish, I–, K+ pale yellow, 90–160 µm thick, not inspersed with oil droplets. Hymenium hyaline, not markedly inspersed with oil droplets, I+ deep blue, 50–70 µm thick, with a pale yellowish brown epihymenial zone 5–10 µm thick, composed of the pigmented upper portions of the paraphyses, unchanged to ±olive in KOH. Paraphyses 1.5–2.0 µm thick, simple to occasionally branched and anastomosing, especially at the base, with apices expanded to 3–5 µm and pigmented olive-brown. Asci 35–55 × 8–14 µm. Ascospores simple, very rarely 1-septate, colourless, mostly markedly curved and bean-shaped, more rarely ellipsoidal or ±sigmoid, 10–14 × 3–5 µm. Pycnidia not observed. CHEMISTRY: Thallus K+ yellowish, C+ orange, KC+ orange, Pd+ orange-red, UV+ weakly dull orange; containing alectorialic acid (major), barbatolic acid (minor), hypoalectorialic acid (minor), subalectorialic acid (minor), haematommic acid (minor) and 5,7-dihydroxy-6-methylphthalide (minor). | ||
| Endemic to eastern N.S.W.; occurs on the twigs of trees and shrubs in wet forest. | ||
| Kantvilas (2004e) | ||
| Checklist Index |
| Introduction | A–D | E–O | P–R | S–Z | Oceanic Islands | References |
This work is copyright. Apart from any use as permitted under the Copyright Act 1968, no part may be reproduced by any process without prior written permission from Australian Biological Resources Study. Requests and inquiries concerning reproduction and rights should be addressed in the first instance to Dr P. McCarthy. These pages may not be displayed on, or downloaded to, any other server without the express permission of ABRS.