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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
Peltula clavata (Kremp.) Wetmore
  Ann. Missouri Bot. Gard. 57: 181 ('1970') [1971]; Heterina clavata Kremp., Flora 59: 56 (1876). T: Rio de Janeiro, Brazil, 1860, D.A.Glaziou 3843; holo: M.  
  Thallus compound; squamules subfruticose, to 1.5 mm long, club-shaped, olive-black to black, sometimes isidiate, attached to the substratum by hyphae. Upper cortex absent; epinecral layer 3–6 µm thick, yellowish to brown. Medulla almost completely hollow with elongated loosely interwoven 1.5–2 µm thick hyphae; photobiont layer 30–50 thick, sharply delimited in the upper part of the medulla. Lower cortex absent. Apothecia 1–3 per squamule, immersed; disc punctiform, to 0.2 mm diam., red-brown. Asci clavate; ascus wall wine-red in iodine, blue after pretreatment with KOH. Ascospores more than 64 per ascus, globose, 3.5–4.7 µm diam. Pycnidial strructure not known; conidia fusiform, 3.7–4.3 × 1.2–1.8 µm.
  Occurs on acidic rocks mostly in arid woodland in W.A., N.T., Qld and northern N.S.W. Also in south-western North America, north-eastern Brazil and southern Africa.  
  Büdel (2001)  

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

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