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 | ||
| Degelia duplomarginata (P.James & Henssen) Arv. & D.J.Galloway | ||
| Lichenologist 13: 39 (1981) Parmeliella duplomarginata P.James & Henssen, Mycotaxon 11: 221 (1980). T: SE of Lake Rotoehu, Rotoiti Bush, S Auckland, N.Z., 19 May 1927 G.E. & G.Du Reitz 3117; holo: UPSV; iso: BM, MB. |
||
| Thallus ±foliose, orbicular, loosely attached, to 8 cm wide, leaden grey to bluish when wet. Lobes 0.3–0.6 cm wide, adjacent to somewhat imbricate, broadly cuneate, with deflexed, ±entire margins. Upper surface matt, usually with transverse concentric ridges, without isidia but often with regenerating lobules in older parts of thallus. Lower surface pale, densely beset with rhizohyphae, often turning bluish or black. Apothecia frequent, to 2 mm wide; disc concave, becoming flat, usually reddish brown; proper exciple distinct, paler; thalline exciple variously developed, of secondary lobules arising from apothecium base, forming a crown-like structure; hymenium I+ blue. Ascospores simple, ellipsoidal, 10–15 × 6–9 µm, hyaline. Pycnidia usually frequent. Conidia 2–3 × 1 µm. | ||
| Very rare, known in Australia from a single collection; occurs on bark, apparently restricted to wet forests in Tas. Also in New Zealand, Hawai'i and southern South America. | ||
| Jørgensen & Galloway (1992a) | ||
| 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.