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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 bolanderi (Tuck.) Wetmore
  Ann. Missouri Bot. Gard. 57: 168 ('1970') [1971]; Pannaria bolanderi Tuck., Gen. Lich. 51, footnote (1872). T: Ukiah, California, U.S.A., H.N.Bolander 242; holo: FH-TUCKERMAN.  
  Thallus a single peltate squamule to 2 mm wide, anchored by an umbilicus, dark olive-green to olive-brown; margin often markedly undulate, sorediate. Upper cortex absent; epinecral layer to 10 µm thick, yellowish to brown. Medulla composed of loosely interwoven hyphae with elongated and 2.5 µm thick, or globose and 7 µm diam. cells, with an poorly delimited photobiont layer in the upper third. Lower cortex 20–75 µm thick, pseudoparenchymatous with globose hyphal cells 7–8 µm diam. Apothecia rare, 1–several per squamule, adnate, with a raised margin when mature; disc widely exposed, reddish, brown or blackish. Asci clavate to obclavate; ascus wall orange in iodine, blue after pretreatment with KOH. Ascospores more than 100 per ascus, globose to ellipsoidal, 5–7.6 × 3–4.5 µm. Pycnidia globose, to 0.15 mm diam.; conidia fusiform, 3.1–3.7 × 1.2 µm.
  Occurs on acidic rocks and occasionally on calcareous rocks in desert and other open arid habitats in W.A., N.T., S.A. and Qld. Also in south-western North America, southern Africa and Norfolk Is.  
  Büdel (2001)  

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

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