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 | ||
Platygramme fuscescens (A.W.Archer) A.W.Archer | ||
Telopea 11: 77 (2005) Phaeographina fuscescens A.W.Archer, Telopea 9: 337 (2001), nom. inval. non Phaeographina fuscescens (Vain.) Zahlbr., Cat. Lich. Univ. 2: 439 (1923). T: track from Red Rd to Mount Bates, Mount Pitt Reserve, Norfolk Island, Dec. 1984, H.Streimann 34499; holo: CANB. |
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Thallus pale fawn to dark brown, thin, smooth, somewhat glossy. Ascomata brown, numerous, crowded, initially fissurine and indicated by thin brown lines on the thallus surface, becoming subsessile to sessile, straight, curved or sinuous, occasionally branched, 1–3 (–4) mm long, 0.15–0.30 mm wide; lips closed. Proper exciple apically carbonised, covered by a thin thalline layer. Hymenium 125–150 µm thick. Ascospores 8 per ascus, pale brown, submuriform, 4 × 2-locular, 13–18 × 6–10 µm. CHEMISTRY: No lichen compounds detected. |
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This rare, corticolous species is known from coastal forest in north-eastern Qld and Norfolk Island. | ||
Archer (2009a) |
Checklist Index |
Introduction | A–D | E–O | P–R | S–Z | Oceanic Islands | References |
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