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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
Phyllopsora rappiana (Brako) Elix

Australas. Lichenol. 58: 6 (2006)

Phyllopsora corallina var. rappiana Brako, Fl. Neotropica Monogr. 55: 42 (1991).

T: Myakka River State Park, Sarasota Co., Florida, U.S.A., 16 Aug. 1985, L.Brako 8229; holo: NY; iso: CANB.

  Thallus squamulose, effuse. Prothallus indistinct to partly well developed, white to red-brown. Squamules 0.1–0.5 mm wide, adnate to ascending, isodiametric to elongate, scattered when young, later often contiguous or imbricate, crenulate to incised, plane to weakly convex, mid-green, glabrous on the upper side, usually faintly pubescent along the margins. Isidia common, laminal or marginal, globose to cylindrical, usually simple, rarely branched. Upper cortex of type 2, 15–25 μm thick. Apothecia rather common, 0.5–1.5 mm wide, rounded when young, later irregular in outline, mostly solitary, plane to moderately convex, pale to mid-brown, with an indistinct darker glabrous to slightly pubescent margin. Proper exciple colourless to pale brown, ±with patches of reddish brown pigment. Epihymenium colourless. Hypothecium pale yellow-brown. Ascospores simple, narrowly ellipsoidal, 6.5–10.0 × 2.5–3.5 μm. Pycnidia not seen.
CHEMISTRY: Cortex and medulla K+ pale yellow, C–, P+ pale yellow; atranorin (major), parvifoliellin (major).
  Occurs in northern N.T., eastern Qld and N.S.W., on bark in monsoon and coastal forest. Also known from North, Central and South America.  
  Elix (2009h)  

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

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