Whiteworm Lichen, White Worm Lichen
Thamnolia vermicularis
White worm lichen as seen atop Sunrise Peak in the Dark Divide, Gifford Pinchot National Forest...........September 12, 2014. Chemical tests were not performed, so there is a possibility that this is Thamnolia subuliformis.
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What appears to be whiteworm lichen as seen from atop Cispus Point, Gifford Pinchot National Forest.........July 4, 2015 The lichen is overlaid above a bed of Wallace's spikemoss (Selaginella wallacei).
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White worm lichen as seen atop Sunrise Peak in the Dark Divide, Gifford Pinchot National Forest...........September 12, 2014.
What appears to be white worm lichen with Pseudephebe pubescens on rock outcrops atop Klahhane Ridge, Olympic National Park........July 27, 2014.
Paul Slichter