File:Caloplaca nivalis (Körber) Th. Fr 477706.jpg
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Caloplaca nivalis (Körber) Th. Fr. Image location: Gold Creek Trail near Snoqualmie Pass, Washington, USA On Andreaea on Si rock in talus in open at ≈1070m elevation best photos I could find – http://www.stridvall.se/lichens/gallery/Caloplaca?page=19 considered very rare, particularly at latitudes south of Canada, but was locally abundant where I found it Used references: Thomson, J.W. (1997) American Arctic Lichens, 2. The Microlichens; 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; McCune’s key Caloplaca in Pacific Northwest, Revised July 2011 at http://people.oregonstate.edu/~mccuneb/Caloplaca.pdf; Based on microscopic features: very distinctive spores for a Caloplaca, described in Smith et al. as “25-30 × 3-5 µm, narrowly ellipsoid, sometimes with a median indentation and then slipper-shaped, straight to curved, simple, occasionally with signs of a pseudoseptum” – see my photos; my spores extremely variable but average ≈ 23 × 4 µm
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This file, which was originally posted to
https://mushroomobserver.org/image/show_image/477706, was reviewed on 26 May 2018 by reviewer Majora, who confirmed that it was available there under the stated license on that date.
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| current | 22:11, 25 May 2018 | | 1,400 × 1,061 (380 KB) | Leoboudv (talk | contribs) | =={{int:filedesc}}== {{Information |Description='''''Caloplaca nivalis''''' (Körber) Th. Fr. Image location: Gold Creek Trail near Snoqualmie Pass, Washington, USA On Andreaea on Si rock in talus in open at ≈1070m elevation best photos I could find – [http://www.stridvall.se/lichens/gallery/Caloplaca?page=19 http://www.stridvall.se/lichens/gallery/Caloplaca?page=19] considered very rare, particularly at latitudes south of Canada, but was locally abundant where I found it <div> <sp... |
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