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 bahiana (Ach.) Frisch | ||
in A.Frisch, K.Kalb & M.Grube, Biblioth. Lichenol. 92: 503 (2006) Thelotrema lepadinum var. bahianum Ach., Methodus 132 (1803); — Thelotrema bahianum (Ach.) Ach., Kongl. Vetensk. Acad. Nya Handl. 33: 87 (1812); — Thelotrema lepadinum var. bahianum (Ach.) Lam., Encycl. Meth. Bot. Suppl. 3: 409 (1813), nom. superfl.; — Leptotrema bahianum (Ach.) Müll.Arg., Mém. Soc. Phys. Genève 29(8): 12 (1887); — Myriotrema bahianum (Ach.) Hale, Mycotaxon 11: 132 (1980). T: Bahia, Brazil, coll. unknown; lecto: H-ACH 743, fide A.Frisch, K.Kalb & M.Grube, Biblioth. Lichenol. 92: 504 (2006). Myriotrema permaculatum Nagarkar & Hale, Mycotaxon 35: 439 (1989). T: Philippines, M.E.Hale 24937; holo: US. |
||
| Thallus epiphloeodal, occasionally bulging and flaking away from the substratum, to c. 1.2 mm thick, pale yellowish to greenish grey, ±glossy, smooth, distinctly verrucose to verruculose, non-rimose. True cortex continuous or discontinuous, to c. 20 µm thick, formed by periclinal hyphae. Algal layer well developed, continuous; calcium oxalate crystals abundant, moderately large to large, scattered or clustered. Vegetative propagules not seen. Ascomata ±conspicuous, to c. 1 mm diam., ±rounded to slightly irregular (especially fused ascomata), perithecioid, solitary to ±fused, often clustered, moderately to usually strongly emergent, verrucose-urceolate to subglobose, rarely hemispherical. Disc and proper exciple not visible from above. Thalline rim margin to 0.2 mm diam., ±rounded, entire, thick, often depressed or ±annulate, concolorous with the thallus or brighter, sometimes brownish; thalline rim incurved. Proper exciple fused, thick, pale yellowish to yellowish brown internally, orange to reddish brown or brownish marginally, often dark brown to slightly carbonised apically, distinctly prosoplectenchymatous, non-amyloid. Hymenium to c. 250 µm thick, not inspersed, strongly conglutinated; paraphyses ±bent, curly towards the moderately thickened tips, ±interwoven, unbranched; columellar structures not seen. Epihymenium hyaline, without granules. Asci 8-spored; tholus absent; lateral walls initially thick, becoming thin. Ascospores submuriform, subglobose to ovoid, rarely ellipsoidal or slightly oblong, with ±rounded ends, brown at maturity, strongly amyloid, 15–30 × 8–23 µm, with 2–4 × 1–4 locules; locules ±rounded, rarely angular, subglobose to oblong or irregular; immature ascospores with 1 or 2 more distinct ±regular thin central septa, otherwise with irregular and indistinct septation; ascospore wall thick, moderately thinly halonate; endospore thin. Pycnidia not seen. CHEMISTRY: Thallus K+ yellowish brown, C–, P+ orange-red; containing protocetraric acid (major), virensic acid (trace). |
||
| Rareon bark in lowland rainforest and mangroves in north-eastern Qld; pantropical. | ||
| 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.