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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
Xanthoparmelia stygioides (Nyl. ex Cromb.) O.Blanco, A.Crespo, Elix, D.Hawksw. & Lumbsch
  Taxon 53: 971 (2004); Parmelia stygiodes Nyl. ex Cromb., J. Bot. 13: 333 (1875); Neofuscelia stygiodes (Nyl. ex Cromb.) Essl., Mycotaxon 7: 52 (1978). T: Swains's [Swains] Bay, Kerguelen [Is.], Venus Transit Expedition, 1875, Eaton s.n.; lecto: BM; isolecto: BM, H-NYL, fide T.L.Esslinger, J. Hattori Bot. Lab. 42: 147 (1977). ***** Parmelia otagensis Zahlbr., Akad. Wiss. Wien, Math.-Naturwiss. Kl. Denkschr. 104: 352 (1941). T: Kakanui Mts, Otago, New Zealand, J.S.Thomson ZA.3750; lecto: W; isolecto: CHR, fide T.L.Esslinger, loc. cit. (1977).  
  Thallus subcrustose, very tightly adnate, to 2–9 cm wide. Lobes closely contiguous to subimbricate, convex centrally, almost flat to strongly convex at apices, irregular to sublinear, 0.3–1.5 mm wide. Upper surface olive- to yellow-brown or black-brown, paler at lobe apices, dull to slightly shiny at lobe apices, ±smooth at periphery, becoming rugose and fissured to subareolate centrally, without isidia. Lower surface dull, smooth to rugose, dark brown to black, paler in some parts, especially when raised from substratum, lacking rhizines, attached to substratum by loboid holdfasts. Apothecia common, sessile, 2.5–5 mm wide; disc concave, becoming flat to irregularly convex, dark brown to black; thalline exciple entire. Ascospores 8.5–11 × 4.5–6 µm. Pycnidia common. Conidia fusiform to subbifusiform, 5.5–9 × 1 µm. CHEMISTRY: cortex K-, HNO3+ dark blue-green; medulla K+ dingy yellow, C-, P+ red-orange, UV-; containing fumarprotocetraric acid (major) and protocetraric acid (minor).
  Common in alpine and subalpine areas of south-eastern Australia (N.S.W., A.C.T., Vic. and Tas.); also occurs in New Zealand, South America and Kerguelen Is. Grows on rock.  
  Elix (1994m)  

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

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