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Physcia ascendens Physcia ascendens on a Cottonwood (Populus deltoides) branch. Cottonwood,Geotagged,Minnesota,Physcia ascendens,Populus deltoides,Spring,United States Click/tap to enlarge Species introCountry intro

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Foliose, lobes with long marginal cilia and usually with helmet-like soralia at the tips; apothecia shortly-stalked with blue-black or thinly pruinose discs. Widespread and common on twigs, bark, walls and concrete, often in company with P. tenella and Xanthoria species as indicators of nitrogen enrichment. Generally more robust than P. tenella, with which it is usually mixed.

Similar species: Teloschistales
Species identified by Gary B
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By Gary B

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Uploaded Mar 18, 2019. Captured Mar 28, 2014 13:53 in 4408 Miller Rd, Barnum, MN 55707, USA.
  • f/5.6
  • 1/160s
  • ISO100
  • 100mm