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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
     
     
Strigula minutula P.M.McCarthy
     
  Muelleria 8: 327 (1995). T: Bunya Mountains National Park, Qld, between Paradise Falls and Little Falls, 26°52'S, 151°35'E, on deeply shaded aquatic and semi-aquatic rocks, 5 Sept. 1993, P.M.McCarthy 759; holo: MEL 1057467 (lost).  
     
  Thallus crustose, epilithic, determinate, continuous to sparingly rimose, pale green to dark grey-green, often slightly darker near the margin, smooth, somewhat glossy, ecorticate, (25-) 40 (-60) µm thick. Algae Trentepohlia; cells broadly ellipsoid to subglobose, 5-10 (-14) x 5-8 µm. Hyphae 2-3 µm wide. Prothallus not apparent. Perithecia very numerous, prominent, but partly or almost entirely overgrown by a (10-) 15-25 (-30) µm thick thalline layer, usually solitary, hemispherical, subglobose or subconical. Ostiole usually inconspicuous. Involucrellum brown-black, extending to excipulum-base level, (0.15-) 0.21 (-0.28) mm diam., 20-30 (-40) µm thick, K-. Centrum broadly ovate to subglobose, 0.08-0.17 mm diam. Excipulum medium to dark brown, 10-15 µm thick. Paraphyses simple to sparingly branched, c. 1 µm thick. Periphyses absent. Asci fissitunicate, 8-spored, elongate-cylindrical, 45-58 x 6-8 µm; lateral walls c. 1 µm thick; lateral walls and apex IKI-; apex rounded, 2-3 µm thick, with a 1-2 µm broad and 1-2 µm tall, convex to tuberculate ocular chamber; ascoplasma IKI+ red-brown. Ascospores hyaline, elongate-ellipsoid to elongate-fusiform, 1-septate, more-or-less uniseriate in the asci, (6-) 8 (-10) x (2-) 2.5 (-3.5) µm. Conidiomata 80-130 µm diam., black above, pale to dark brown below, with a simple conidiogenous layer of 12-20 x 1 µm hyphae. Macroconidia 1-septate, elongate-ellipsoid to cylindrical, 4.5-7.5 x 2-2.5 µm, growing obliquely from the tips of short, unbranched conidiogenous hyphae, with variously developed, apical gelatinous appendages. Microconidia not seen.
     
  Occurs in south-eastern Qld and in New Zealand.  
     
   
     
     
  McCarthy (1995b)  

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