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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
Sticta myrioloba (Müll.Arg.) D.J.Galloway
  Tropical Bryol. 15: 143 (1998); Sticta filix var. myrioloba Müll.Arg., Flora 65: 254 (1886). T: McLeay R., N.S.W., 1882,"Aug. Rudder ex Baron Ferd. v. Mueller"; lecto: G 002074, fide D.J.Galloway, loc. cit.  
  Thallus irregularly palmate, 2–8 (–12) cm wide, attached by a rooted holdfast from which arises a dark brown-tomentose terete to flattened stalk 2–10 (–12) mm long and 1–3 mm wide. Lobes proliferating from basal stalk, linear-laciniate to irregularly branched, 5–15 (–30) mm long, 2–8 (–12) mm wide, discrete, contiguous or complex-imbricate; margins conspicuously and densely phyllidiate; larger lobes distinctly thickened-ridged. Upper surface pale grey-green to olivaceous or greenish buff when dry, lettuce-green when wet, undulate to unevenly shallowly pitted, smooth to subcanaliculate in the mid-line, glossy in parts, coriaceous, brittle when dry. Phyllidia mainly marginal, often densely aggregated, developing along tears or holes in upper surface, very variable, ±rounded to squamiform or coralloid. Photobiont green. Lower surface pale buff or whitish, glabrous and glossy at margins, to dark brown centrally, conspicuously ridged and tomentose centrally. Cyphellae numerous, thelotremoid, deeply urceolate, 0.1–0.5 (–1) mm diam.; margins swollen; pit membrane white. Apothecia rare or absent, sessile, 0.5–3 (–4) mm diam.; disc matt, orange-yellow; exciple roughened-scabrid, pale whitish. Ascospores fusiform, 1-septate, (22–) 25–36.5 (–41.5) × 7–8.5 (–11) µm, colourless.
  An epiphyte of lowland to montane rainforest in eastern Qld and north-eastern N.S.W.; grows on trunks and branches of trees and shrubs, palms and vines at altitudes of 600–1080 m. Also in Papua New Guinea and possibly more widely distributed in the western Pacific.  
  Galloway (2001b)  

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

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