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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
Haematomma flexuosum Hillm.
  Repert. Spec. Nov. Regni Veg. 49: 35 (1940). T: Encanto, Venezuela, C.Vogl s.n.; holo: M, n.v.  
  Thallus cream-coloured to pale grey or greenish grey, variable but usually ±rugose and warty, ±rimose, 0.3–0.5 mm thick, corticate, esorediate. Apothecia sessile, 0.5–1.5 mm diam., not confluent; disc crimson to purple-red, epruinose; thalline margin prominent, smooth, becoming swollen and crenulate in large apothecia. Ascospores fusiform, straight or slightly curved, 5–9-septate, 35–55 × 3.5–5.0 µm. Conidia bacilliform, 7–8 × 1.5–2.0 µm. CHEMISTRY: Thallus K+ yellow, C–, KC–, Pd+ yellow; disc K+ violet; containing isoplacodiolic acid (major), atranorin (minor), isopseudoplacodiolic acid (minor) and haematommone (minor).
  Rare on bark in forests of south-eastern Qld. This subtropical and tropical species also occurs in Africa, Madagascar, the Philippines and North, Central and South America.  
  Elix (2004c)  

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

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