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 | ||
| Ocellularia aurata (Tuck.) Hale | ||
Mycotaxon 11: 139 (1980) Thelotrema auratum Tuck., Proc. Amer. Acad. Arts Sci. 5: 408 (1862); — Ampliotrema auratum (Tuck.) Kalb, in A.Frisch, K.Kalb & M.Grube, Biblioth. Lichenol. 92: 82 (2006). T: Cuba, C.Wright, Lich. Cub. 133; lecto: FH-TUCK, fide M.E.Hale, Smithsonian Contr. Bot. 38: 41 (1978); isolecto: BM, UPS. |
||
| Thallus endophloeodal to epiphloeodal, to c. 200 µm thick, olive to yellowish or brownish olive, mainly glossy, smooth, ±verrucose, rimose or not. Thallus covered by a discontinuous protocortex or by a true cortex to c. 20 µm thick, consisting of irregular to periclinal hyphae. Algal layer well developed, continuous; calcium oxalate crystals moderately large to large, clustered. Vegetative propagules not seen. Ascomata conspicuous, to c. 2 mm diam., ±rounded, apothecioid, solitary to fused, mostly strongly emergent to sessile, subglobose to urceolate. Disc partly visible from above, with a conspicuous yellowish to reddish pruina. Pores formed by the thalline rim margin, large to gaping, to c. 1 mm diam., ±rounded, entire to eroded, then the apex of the proper exciple becoming visible from above as a darkish grey line, moderately thin to moderately thick, concolorous with the thallus to reddish or brownish; thalline rim incurved. Proper exciple fused, thin to thick, carbonised to orange or reddish brown marginally, amyloid at the base. Hymenium to c. 120 µm thick, inspersed, moderately conglutinated; paraphyses straight to slightly bent, parallel to slightly interwoven, unbranched, with unthickened to slightly thickened tips; columellar structures absent. Epihymenium yellowish to reddish, with reddish or brownish granules. Asci
8-spored; tholus initially thick, thin when mature. Ascospores mostly submuriform, ellipsoidal, with ±rounded to narrowly rounded ends, hyaline, distinctly amyloid, 10–20 ×
8–10 µm, with 4–6 × 1–3 locules; locules ±rounded to ±angular, subglobose to irregular, with hemispherical end cells; transverse septa thick, regular; ascospore wall thick, non-halonate; endospore thick. Pycnidia not seen. CHEMISTRY: Thallus K+ yellowish brown, C–, P+ orange-red; containing protocetraric acid (major), virensic acid (minor to trace), confumarprotocetraric acid (trace), fumarprotocetraric acid (trace); ascomata K+ yellow, containing an unknown pigment. |
||
| This pantropical species is rather common on bark in rainforest and mangroves in eastern Qld; found at altitudes from sea level to 530 m. | ||
| Mangold et al. (2009) | ||
| 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.