Department of the Environment and Water Resources home page

About us | Contact us | Publications | What's new

Header imagesHeader imagesHeader images

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 lacericola P.M.McCarthy

Fl. Australia 57: 661 (2009)

T: Murray Falls State Forest Park, 19 km WSW of Bilyana, Qld, 18°09’14”S, 145°48’58”E, alt. 85 m, on leaves of trees in lowland tropical rainforest, 27 July 2006, J.A.Elix 38910; holo: CANB.

  Thallus subcuticular, epiphyllous at the leaf margin and around wounds, tears and perforations, elongate to irregular, comparatively small, 2–5 mm wide, 25–50 µm thick, the margin faintly and shallowly lobate, uniformly bright pale to medium green; senescent thalli becoming pale grey; surface dull, ±smooth, but with faint concentric ridges and/or very shallow radial furrows, occasionally minutely white-punctate. Photobiont Cephaleuros; cells rounded to ellipsoidal, 5–10 × 2–5 µm, short- and branched-filamentous, but not forming plates; prothallus not apparent. Perithecia moderately numerous, convex, partly overgrown by the thallus so that only the uppermost one-third or less is exposed, 0.25–0.40 (–0.50) mm diam.; exposed part dull to glossy black, not sharply delimited from the thallus. Perithecial apex rounded or slightly pointed; ostiole inconspicuous or in a shallow depression. Involucrellum black, carbonaceous, extending to exciple base level, 20–35 µm thick. Exciple hyaline to pale brown, 8–18 µm thick. Centrum 0.15–0.25 mm diam. Paraphyses sparingly branched, c. 1 µm thick. Asci narrowly cylindrical, 58–75 × 4–5 µm. Ascospores ±biseriate in the ascus, each dove-tailing with two in the adjacent column, 1-septate, narrowly fusiform, faintly constricted at the septum, (10–) 12.5 (–14) × (1.5–) 2.0 (–2.5) µm, 5–7 times longer than wide; cells ±equal in size, not separating within or outside the ascus. Conidiomata: 1) rounded, ellipsoidal or irregular applanate groups of 10–20 fused macroconidiomata (apart from some peripheral conidiomata, these are clearly visible only in thin section), 0.30–0.77 mm in their maximum extent, dull black, not overgrown by the thallus, with simple bacilliform macroconidia 6–8 × 1–2 µm, with elongate apical gelatinous appendages; 2) convex to hemispherical, solitary, 60–120 µm diam., with simple fusiform microconidia 2–3 × c. 0.7 µm.
  Known only from leaves in lowland rainforest at the type locality in north-eastern Qld.  
  McCarthy (2009b)  

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

This work is copyright. Apart from any use as permitted under the Copyright Act 1968, no part may be reproduced by any process without prior written permission from Australian Biological Resources Study. Requests and inquiries concerning reproduction and rights should be addressed in the first instance to Dr P. McCarthy. These pages may not be displayed on, or downloaded to, any other server without the express permission of ABRS.

Top | About us | Advanced search | Contact us | Information services | Publications | Site index | What's new