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 fallax (Zahlbr.) Kalb | ||
Biblioth. Lichenol. 88: 315 (2004) Parmelia fallax Zahlbr., Ann. Mycol. 10: 87 (1912). T: Kalimoa Valley, Oahu, Hawaiian Islands, J.F.Rock 89; lecto: W n.v. , fide K.Kalb, Biblioth. Lichenol. 78: 160 (2001). Pyxine patellaris Kurok., Bull. Natl. Sci. Mus. Tokyo, B, 12: 689 (1969). T: between Okumura and Ohgiura, Chichijima Island, Bonin Islands, H.Inoue 19027; holo: TNS n.v. |
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| Thallus 2–5 cm wide, adnate, subdichotomously lobate. Lobes radiating, discrete to ±imbricate, plane to slightly convex, 0.3–0.6 mm wide, subrotund to truncate at the apices. Upper surface white to yellowish white or yellowish grey, sparsely pruinose at the lobe tips or epruinose; dactyls and isidia absent. Pseudocyphellae distinct, marginal and laminal, irregular or very rarely becoming reticulate. Soralia laminal or occasionally apical, orbicular, crateriform, with the sides raised and the surface plane to somewhat convex; soredia farinose, white. Medulla uniformly white. Lower surface black in the centre, paler towards the margin; rhizines ±dense, furcate. Apothecia rare, obscurascens-type, 0.4–1.1 mm wide; disc epruinose. Internal stipe distinct, white, K–, P–. Ascospores 13–17 × 6–8 μm. Pycnidia not seen. CHEMISTRY: Cortex K+ yellow, C–, KC–, P+ yellow, UV–; medulla K+ yellow → red, C–, P+ orange; containing atranorin (minor), chloroatranorin (minor), norstictic acid (major), testacein (minor), unknown terpenes (minor). |
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| Occurs on bark in coastal and montane forest in northern N.T., eastern Qld and N.S.W. Also in SE Asia, the Bonin Islands and the Hawaiian Islands. | ||
| Elix (2009l) | ||
| Checklist Index |
| Introduction | A–D | E–O | P–R | S–Z | Oceanic Islands | References |
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