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 coralligera Malme | ||
Bih. Kongl. Svenska Vetensk.-Akad. Handl. 23: 40 (1897) T: near São Jeronymo, Serra da Chapada, Mato Grosso, Brazil, ad rupes aprices, 3 June 1894, G.O.A.Malme [Exped. Prim. Regnell. Lichens 2749c]; lecto: S n.v., fide T.D.V.Swinscow & H.Krog, Norweg. J. Bot. 22: 53 (1975). |
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| Thallus 3–10 cm wide, loosely adnate, subdichotomously lobate. Lobes radiating, discrete to ±imbricate, plane to slightly convex, 0.5–1.0 mm wide, subrotund to truncate at the apices. Upper surface pale to dark grey, weakly pruinose towards the lobe tips or epruinose; isidia absent. Pseudocyphellae laminal, irregular to linear or becoming ±reticulate subapically. Dactyls mainly laminal, occasionally marginal, scattered or clustered, nodular to subcylindrical or clavate, short, ±branched, pustulate, bursting apically to produce granular soredia. Medulla creamy yellow to yellow-orange or yellow-brown. Lower surface black in the centre, paler towards the margin; rhizines ±dense, furcate. Apothecia rare, obscurascens-type, 0.5–1.0 mm wide; disc epruinose. Internal stipe distinct, pale yellow to yellow-orange or yellow-brown, K+ greenish, P+ dirty orange-brown. Ascospores 16–20 × 5–7 μm. Pycnidia not seen. CHEMISTRY: Cortex K+ yellow, C–, KC–, P+ yellow, UV–; medulla K–, C–, P+ orange; containing atranorin (minor), chloroatranorin (minor), testacein (major), unknown terpenes (minor). |
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| Very rare on bark in hinterland forest in the N.T. Also in Africa, Asia, South America and Papua New Guinea. | ||
| Elix (2009l) | ||
| Checklist Index |
| Introduction | A–D | E–O | P–R | S–Z | Oceanic Islands | References |
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