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
Hypotrachyna osseoalba (Vain.) Y.S.Park & Hale

Taxon 38: 88 (1989); Parmelia osseoalba Vain., Ann. Soc. Zool. Bot. Fenn. Vanamo 1: 39 (1921). T: summit of Mt Doi Sutep, Thailand, C.C.Hosseus s.n.; holo: TUR–V, n.v., fide Y.S.Park & M.E.Hale, loc. cit. Parmelia formosana Zahlbr., Repert Spec. Nov. Regni Veg. 33: 57 (1934); Hypotrachyna formosana (Zahlbr.) Hale, Smithsonian Contr. Bot. 25: 38 (1975). T: Mt Arisan, Nimandaira, Taiwan, Y.Asahina 70; lecto: W; isolecto: TNS, fide M.E.Hale, loc. cit.

  Thallus adnate to tightly adnate, to 3–8 cm wide. Lobes crowded, sublinear, subdichotomously branched, 1–3 mm wide; margins entire; apices incised. Upper surface pale yellowish grey, flat or weakly convex, shiny, emaculate, smooth, becoming cracked centrally, without isidia; soredia in coarse, erumpent, laminal pustules or coralloid clusters, appearing glomerulate and almost isidiate. Medulla white. Lower surface densely rhizinate; rhizines dichotomously branched. Apothecia rare, sessile, 3–5 mm wide; thalline exciple crenate, occasionally sorediate or pustulate. Ascospores 7–11 × 4–6 µm. Pycnidia not seen. CHEMISTRY: cortex K-, UV+ yellow; medulla K+ reddish, C-, P-; containing lichexanthone (major), colensoic acid, 4-O-methylphysodic acid, lividic acid (major), physodic acid and oxyphysodic acid.
  Common in moister areas of eastern Australia (Qld, N.S.W. and Vic.); a common cosmopolitan subtropical to temperate species, probably the most common Hypotrachyna in Australia. Grows on bark and rock.  
  Elix (1994h)  

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