Observation 97300: Diplotomma alboatrum (Hoffm.) Flotow
When: 2012-06-14
Herbarium specimen reported

Notes: on Si rock in salt spray zone

very distinctive spores which look (faintly) 1-septate but develop into multiiple round locales (not oil bodies)

as Buellia alboatra in Nash et al.

Apparently D. chlorophanum which was also found nearby ( http://mushroomobserver.org/97301?q=Nt0q ) is considered by some to be a variety of D. alboatra which contains norstictic acid. It does differ is some other characteristics though. Interesting that both are found in the same small area.

Proposed Names

83% (1)
Eye3 Eyes3
Used references: Smith, C.W., Aptroot, A., Coppins, B.J., Fletcher, A., Gilbert, O.L., James, P.W. and Wolseley, P.A. (2009) The Lichens of Great Britain and Ireland; Nash III, T.H., Gries, C. and Bungartzk, F. (ads) (2007) Lichen Flora of the Greater Sonoran Desert Region, Volume 3; Noble, W. J. (1982) The Lichen Flora of the Coastal Douglas-fir Dry Subzone of British Columbia. Ph.D. Thesis, University of British Columbia, Reprinted and nomenclaturally updated in 1996 by Bruce McCune with per mission of the author.
Based on microscopic features: epihymenium brownish; hymenium 60u tall; hypothecium brownish; spores 8/ascus average 17×13; paraphyses 2u diameter, 4u diameter at tip
Based on chemical features: Thallus K neg, no crystals with K

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Eye3 = Observer’s choice
Eyes3 = Current consensus


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Created: 2012-06-14 10:51:10 PDT (-0700)
Last modified: 2012-07-03 16:29:55 PDT (-0700)
Viewed: 54 times, last viewed: 2016-10-26 21:19:49 PDT (-0700)
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