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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 berteriana (Fée) Imshaug

Trans. Amer. Microscop. Soc. 76: 254 (1957)

Circinaria berteriana Fée, Essai Crypt. Écorc. 128 (1825).

T: [Martinique], on bark of Quassia; holo: G n.v.

Pyxine meissneri Tuck. ex Nyl., Ann. Sci. Nat., Bot., sér. 4, 11: 205 (1859). T: Cuba, C.Wright, Lich. Cub. 95: lecto: FH n.v., fide H.A.Imshaug, Trans. Amer. Microscop. Soc. 76: 254 (1957).

Pyxine cocoes var. endoxantha Müll.Arg., Flora 65: 318 (1882). T: Balade, New Caledonia, 1881, E.Vieillard; holo: G n.v.

  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, 0.5–1.5 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 in upper part; lower medulla white. Lower surface black in the centre, paler towards the margin; rhizines ±dense, furcate. Apothecia common, cocoes-type, 0.5–2.0 mm wide; disc epruinose. Internal stipe distinct, white, K–, P–. Ascospores 15–22 × 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).
  Rare on bark, wood and rock in montane forest in south-eastern Qld and north-eastern N.S.W. Also in North, Central and South America, Africa, New Caledonia and the Galapagos Islands.  
  Elix (2009l)  

Checklist Index
Introduction | A–D | E–O | P–R | S–Z | Oceanic Islands | References

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