Identification: Peltigera? sp I.D. help

Discussion in 'Fungi, Lichens and Slime Molds' started by R Siler, Jun 19, 2008.

  1. R Siler

    R Siler Member

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    S.E. Oregon, USA
    Hi, I was hoping someone could help me out with a lichen identification. I found this guy almost completely dried up in the devil's garden by Klamath Falls, pretty dry and open habitat, growing on soil+moss under shelter of some Arbuscula. The rhizine-covered veins (these pictures are when wetted) point to Peltigera rufescens, but the photobiont is green, unless I'm very mistaken, with no cephalodia that I can find. Any help is appreciated.

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  2. Daniel Mosquin

    Daniel Mosquin Paragon of Plants UBC Botanical Garden Forums Administrator Forums Moderator 10 Years

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    Vancouver, British Columbia, Canada
    According to the Lichens of North America, Peltigera rufescens should have a tomentose (woolly) upper surface. Doesn't seem to be the case here. Peltigera ponojensis grows in similar habitats, but shouldn't have a shiny upper surface.

    Assuming the photobiont is green, I'm not having success with the key in the book. Closest match is Peltigera leucophlebia - and yours doesn't have any freckles.

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