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 | ||
| Topeliopsis darlingtonii Frisch & Kalb | ||
Lichenologist 38: 39 (2006) T: Darlington Range, Qld, K. & A.Kalb 33979; holo: CANB. |
||
| Thallus endophloeodal to epiphloeodal, to 100 µm thick, pale yellowish grey, glossy, smooth, continuous to slightly verruculose, non-rimose. Protocortex ±continuous, to c. 25 µm thick, in some parts becoming conglutinated and forming a true cortex of mostly irregular hyphae. Algal layer discontinuous and poorly developed; calcium oxalate crystals not seen. Vegetative propagules not seen. Ascomata inconspicuous, to c. 0.7 mm diam., ±rounded, perithecioid or apothecioid, erumpent, solitary to marginally fused, immersed to emergent, then irregularly depressed-hemispherical to depressed-urceolate. Disc usually not visible from above, rarely partly visible, greyish to pale greyish brown, epruinose to slightly pruinose. Pores minute to small, to c. 0.1 mm diam., mostly irregular; pore margin entire to slightly split, incurved; proper exciple usually not visible from above, in more open ascomata becoming partly visible, entire to slightly split, whitish, incurved. Thalline rim in two sections; inner parts coarsely cracked and thick, lacerate and slightly layered, predominantly incurved, these occasionally becoming slightly erect towards an outer margin that is off-white, often indistinct and eroded or fused with inner rim parts, coarsely cracked, incurved to erect, concolorous with the thallus. Proper exciple fused; apices occasionally becoming ±free, thin to thick, hyaline internally, pale yellowish to pale brownish marginally, apically covered with greyish granules, often incorporating substratum particles, ±amyloid towards the base and subhymenium. Hymenium to c. 150 µm thick, conglutinated; paraphyses parallel to slightly interwoven, with unthickened to slightly thickened tips; lateral paraphyses inconspicuous, to c. 25 µm long. Epihymenium hyaline, without or with a few greyish granules. Asci 8-spored; tholus initially thick, thin when mature. Ascospores transversely septate, oblong to fusiform, with narrowly rounded to subacute ends, hyaline, non-amyloid to faintly amyloid, 35–60 × 6–10 µm, with 10–16 locules; locules rather large, ±rounded to slightly angular, lentiform or oblong; septa thin, irregular; ascospore wall thin, often with a thin halo. CHEMISTRY: Thallus K+ yellow, C–, P+ orange; containing stictic (major), constictic acid (minor), a-acetylconstictic acid (minor), consalazinic acid (minor). |
||
| Endemic to south-eastern Qld; grows on bark at the type locality, a subtropical rainforest at 980 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.