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 | ||
| Chapsa lamellifera (Kantvilas & Vězda) Mangold | ||
in A.Mangold, J.A.Elix & H.T.Lumbsch, Fl. Australia 57: 653 (2009) Chroodiscus lamelliferus Kantvilas & Vězda, Lichenologist 32: 336 (2000). T: Ben Ridge, E of Ben Nevis, Tas., alt. 750 m, on Leptospermum lanigerum in rainforest, 17 Feb. 1981, G.Kantvilas 105/81; holo: HO; iso: Herb. Vězda. |
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| Thallus endophloeodal to epiphloeodal, to c. 100 µm thick, greyish green to pale grey, dull to slightly glossy, smooth, continuous, non-rimose. Protocortex discontinuous, to c. 20 µm thick. Algal layer ±continuous, moderately well developed; calcium oxalate crystals small, sparse, scattered. Vegetative propagules not seen. Ascomata conspicuous, to c. 3 mm diam., mostly ±rounded, chroodiscoid at maturity, initially erumpent, later sessile, solitary or fused, becoming ±distinctly emergent, mostly depressed-urceolate. Disc partly to rarely completely visible from above, greyish brown to flesh-coloured, indistinctly pruinose. Proper exciple not visible from above; thalline rim ±regularly radially split, lobed, becoming strongly layered, off-white to pale reddish brown; inner layers mostly incurved, often gradually exfoliating, becoming erect to recurved towards the outer layers. Proper exciple fused, thin to somewhat evanescent, hyaline internally to pale brownish marginally, non-amyloid. Hymenium to c. 180 µm thick, strongly conglutinated; paraphyses straight to slightly bent, parallel, the tips unthickened to slightly thickened; lateral paraphyses mostly inconspicuous, to c. 25 µm long. Epihymenium hyaline, with greyish brown granules. Asci 8-spored; tholus absent. Ascospores muriform, oblong or ellipsoidal to reniform, with rounded to narrowly rounded ends, hyaline or becoming slightly yellowish, non-amyloid, 30–60 × 10–20 µm, with 12–18 × 2–5 locules; locules small, ±rounded to angular, irregular; transverse septa only distinct in immature ascospores, irregular, disappearing with age; ascospore wall thin, thinly halonate. CHEMISTRY: Thallus K+ yellowish, C–, P+ reddish; containing protocetraric acid (major to minor), fumarprotocetraric acid (major to minor), succinprotocetraric acid (minor). |
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| Common on tree bark and dead wood, rarely on soil, plant debris or moss, in moist, cool-temperate rainforest in Tas., at altitudes to 900 m; also in New Zealand. | ||
| Mangold et al. (2009) | ||
| Checklist Index |
| Introduction | A–D | E–O | P–R | S–Z | Oceanic Islands | References |
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