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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
Graphis perstriatula Nyl.

Bull. Soc. Linn. Normandie, sér. 2, 7: 176 (1873)

Graphina perstriatula (Nyl.) Zahlbr., Cat. Lich. Univ. 2: 418 (1923).

T: Andaman Islands, 1867, S.Kurz; lecto: H-NYL 7779 n.v., fide U.Makhija et al., Biovigyanam 18: 27 (1992).

Graphis gracilescens Vain., Ann. Acad. Sci. Fenn., ser. A, 15(6): 203 (1921); Graphina gracilescens (Vain.) Zahlbr., Cat. Lich. Univ. 2: 407 (1923). T: Guam, Marianas Islands, Oct. 1911, R.C.McGregor 604; holo: TUR-V 27238.

  Thallus off-white, thin, smooth, dull. Ascomata black, numerous, crowded, semi-immersed to sessile, conspicuous, straight, curved or sinuous, rarely branched, sometimes becoming sulcate, with a negligible thalline margin, 1–4 mm long, 0.10–0.25 mm wide; lips closed. Proper exciple apically to laterally carbonised. Hymenium 125–150 µm thick, not inspersed. Ascospores 8 per ascus, muriform, 4–6 × 2–3 (–4)-locular, (20–) 25–35 × (11–) 13–15 µm, I+ blue-violet.
CHEMISTRY: Norstictic acid.
  Corticolous in eastern Qld; also in Costa Rica, India, Thailand and Micronesia.  
  Archer (2009a)  

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

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