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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
     
     
Collema glaucophthalmum Nyl.
     
  Flora 41: 377 (1858)
T: near Orizabam, Mexico, Galeotii; lecto: H-NYL 41875, n.v., fide G.Degelius, Symb. Bot. Upsal. 20(2): 164 (1974).
 
     
  Thallus to 6 cm wide, with marginal lobes ascending, adnate in small thalli, broadly lobate, thin to moderately thick, sometimes fenestrate, with radiating ridges and pustules especially older parts, matt, sometimes glossy at margins, olive-green, sometimes bluish green; isidia absent. Lobes few, imbricate, round, sometimes elongate. Apothecia dense, to 1.5 mm wide, laminal, especially on ridges, sessile, with constricted base, sometimes broadly pedicellate; disc flat becoming convex, grey-blue or white becoming red; pruina thick when young, sometimes almost absent on older apothecia; thalline exciple thin to moderately thick, entire, smooth or wrinkled, persistent. Asci 43–78 × 60–92 µm, clavate to subcylindrical. Ascospores 40–60 × 4.5–15 µm, straight or curved, narrowly fusiform to broadly acicular, 6–10-celled, rarely constricted at septa. Pycnidia common, submarginal or laminal, to 200 µm wide. Conidia 4–5 × 1.5 µm, straight, usually swollen towards ends.
     
  Occurs in S.A., N.S.W., Vic. and Tas. Widely distributed in the Southern Hemisphere where it occurs in tropical and temperate habitats. Grows on bark.  
     
   
     
     
  Filson (1992d)  

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