Northwest Lichenologists

Cyclohymenia epilithica

  • 20 Jun 2018 12:17 PM
    Message # 6326696

    Recently encountered what I take to be Cyclohymenia epilithica on many granodiorite outcrops in shade of relatively old 2nd growth forest (western hemlock, douglas fir, etc.), along “trail” to Stegosaurus Butte, 500-600m elevation, above Middle Fork Snoqualmie River, western Cascades of Washington. Photos posted to gallery (best viewed full size). Apparently quite common in the area.

    See McCune, Curtis and Di Meglio 2017 New taxa and a case of ephemeral spore production in Lecideaceae from western North America. The Bryologist 120(2): 115-124

    Last modified: 20 Jun 2018 7:33 PM | Richard Droker
  • 21 Jun 2018 7:21 AM
    Reply # 6329351 on 6326696
    Bruce McCune (Administrator)

    Yes, that's it, Cyclohymenia for sure. Good job with the photos. After you get the idea, it is easy to identify as you are walking along, since it forms a thick greenish paint on rocks sticking up from the forest floor in shady places. I have also recently found that it is common in some areas of the Olympic Peninsula and coastal BC as well.

  • 22 Jun 2018 3:26 PM
    Reply # 6333718 on 6326696

    Fascinating lichen! Really does look like paint from a distance.

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