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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
Parmotrema reticulatum (Taylor) M.Choisy
  Bull. Mens. Soc. Linn. Soc. Bot. Lyon 21: 148 (1952)
Parmelia reticulata Taylor in J.T.Mackay, Fl. Hibern. 2: 148 (1836); Rimelia reticulata (Taylor) Hale & A.Fletcher, Bryologist 93: 28 (1990). T: near Dunkerron, County Kerry, Ireland, T.Taylor s.n.; lecto: FH; isolecto: BM, fide M.E.Hale & A.Fletcher, loc. cit. *****Lobaria perlata var. ciliata Lam. & DC., Fl. Franç. 3rd edn, 2: 403 (1805); Parmelia perlata var. ciliata (Lam. & DC.) Jatta, Fl. Ital. Crypt., Lich. 206 (1909). T: Vire, France, D.F.Delise s.n.; lecto: G, n.v., fide M.E.Hale & A.Fletcher, loc. cit. *****Parmelia concors Kremp., Verh. K.K. Zool.-Bot. Ges. Wien 30: 337 (1880). T: Kings Island, Australia, A.Neate; lecto: M, n.v., fide M.E.Hale & A.Fletcher, loc. cit. *****Parmelia urceolata var. subcetrata Müll.Arg., Flora 66: 45 (1883). T: Toowoomba, Qld, Hartmann s.n.; lecto: G, n.v., fide M.E.Hale & A.Fletcher, loc. cit. *****Parmelia virens var. sorediata Müll.Arg., Flora 69: 256 (1886); Parmelia pseudovirens Gyeln., Repert. Spec. Nov. Regni Veg. 29: 288 (1931); Parmotrema pseudovirens (Gyeln.) Elix, Mycotaxon 47: 127 (1993). T: Toowoomba, Qld, Hartmann; holo: G?, n.v. *****[Parmelia leucosemotheta auct. non Hue [= Parmotrema leucosemothetum (Hue) Hale]: J.A.Elix & H.Streimann, J. Hattori Bot. Lab. 51: 82 (1982)]. *****[Parmelia urceolata var. sorediifera auct. non Müll.Arg.: W.A.Weber & C.M.Wetmore, Beih. Nova Hedwigia 41: 77 (1972)].
  Thallus loosely adnate, membranaceous to coriaceous, to 4–20 cm wide. Lobes imbricate or subascending at margins, irregular, partly rounded and deeply crenate, partly irregularly incised and laciniate, 5–15 mm wide; cilia sparse to moderately dense, simple, 0.2–3 mm long. Upper surface pale grey to grey-green, dull, sorediate, without dactyls; soralia marginal, linear to subcapitate, commonly on short marginal laciniae, sometimes submarginal and punctiform; soredia granular. Lower surface with rhizines or papillae to lobe margins or with a erhizinate marginal zone 1–3 mm wide on the marginal lobes; rhizines dense, simple or squarrose, slender, to 2 mm long. Apothecia rare, submarginal to laminal, subpedicellate, 2–8 mm wide; disc imperforate or eventually narrowly perforate, concave, dark brown; thalline exciple thick, sorediate. Ascospores ellipsoidal, 13–18 × 8–11 µm wide. Pycnidia rare. Conidia filiform, 12–16 × 1–1.5 µm. CHEMISTRY: cortex K+ yellow; medulla K+ yellow then red, C-, P+ orange-red; containing atranorin, chloroatranorin, salazinic acid (major) and consalazinic acid (minor).
  A very common, highly variable species occurring on bark or rock in all States except N.T.; a cosmopolitan species, widespread throughout the tropics and temperate areas; also on Lord Howe Is., Norkolk Is. and Macquarie Is.  
  Elix (1994x)  

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

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