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 | ||
| Pyxine australiensis Kalb | ||
Herzogia 10: 61 (1994) T: near Minyama, Sunshine Coast, c. 100 km N of Brisbane, Qld, 26°41’S, 153°08’E, on trees along the shore, K. & A.Kalb s.n.; holo: CANB; iso: Herb. Kalb n.v. |
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| Thallus 5–10 cm wide, adnate to tightly adnate, subdichotomously lobate. Lobes radiating, discrete to ±contiguous, plane to convex, but often slightly concave towards the tips, 0.5–0.8 mm wide, subrotund at the apices. Upper surface white to greenish grey or yellow-grey, sparsely pruinose at the lobe tips or epruinose; dactyls, isidia and soredia absent. Pseudocyphellae distinct, marginal and laminal, subreticulate. Medulla pale yellow. Lower surface black in the centre, paler towards the margin; rhizines ±dense, furcate. Apothecia common, cocoes-type, 0.5–1.5 mm wide; disc epruinose. Internal stipe distinct, white, K–, P–. Ascospores 16–22 × 6–8 μm. Pycnidia not seen. CHEMISTRY: Cortex K–, UV+ yellow; medulla K– or K+ pale red, C–, KC–, P– or P+ orange; containing lichexanthone (major), triterpenes (major or minor), unknown pigment (minor or trace). |
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| Common on bark and wood, on rarely rocks, in coastal, hinterland and monsoon forests in W.A., N.T., Qld and N.S.W. Also in South America. | ||
| Elix (2009l) | ||
| Checklist Index |
| Introduction | A–D | E–O | P–R | S–Z | Oceanic Islands | References |
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