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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 parvifolia (Pers.) Müll.Arg. var. parvifolia

Bull. Herb. Boissier 2, App. 1: 90 (1894)

Lecidea parvifolia Pers., in C.Gaudichaud, Voy. Uranie Bot. 192 (1827).

T: Rio de Janeiro, Brazil, C.Gaudichaud; holo: PC n.v.; iso: BM, G.

  Thallus squamulose to subfoliose; subfoliose thalli to more than 10 cm wide. Prothallus thick, usually well developed, white to reddish brown. Squamules minute, 0.5–1.0 mm wide, ±compressed and adnate to slightly ascending, forming a ±placodioid thallus, imbricate, plane to convex, lacinulate, yellow-green, green or pale green, glabrous or finely pubescent along the margins; isidia absent. Lacinules imbricate, ±densely coralloid. Upper cortex of type 1–2, 30–60 μm thick. Apothecia common, 0.5–1.5 mm diam., crowded, rounded to irregular in outline, plane to convex, tan to reddish brown; margin concolorous with the disc or darker, smooth or distinctly pubescent. Proper exciple pale brown. Epihymenium colourless. Hypothecium pale brown. Ascospores simple, rarely 1-septate, narrowly ellipsoidal to short-fusiform, 8–13 × 2–3 μm. Pycnidia common, tan, partly immersed in the thallus. Conidia bacilliform, straight, c. 9 × 1 μm.
CHEMISTRY: Cortex and medulla K–, C–, KC–, P–, UV–; no lichen substances detected.
  Occurs on the bark of trees in rainforest and coastal forest in eastern Qld and N.S.W. Also in North, Central and South America and on islands in the Pacific Ocean (New Caledonia, the Hawaiian Islands, Tahiti and Juan Fernández).  
  Elix (2009h)  

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

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