Thamnolia vermicularis - a photo on Flickriver

west of Obstruction Point, Olympic National Park

Interesting regarding dispersal - "This species grows on many types of tundras, from bare, open gravels and frost boils to rich moist, mossy thickets among the willows and heaths. It is circumpolar, arctic-alpine, the studies by Sato demonstrating clearly that it is more abundant than T. subuliformis in collections from the southward and into the southern hemisphere. Even in the northern hemisphere the collections showed increasing proportions of T. vermicularis over T. subuliformis as Sato studied the populations which had been collected. In North America and Greenland its range appears to be more restricted than that of t. subuliformis, neither ranging as far north nor as far south as the latter. The extent of range of the Thamnolia species as bipolar and in such widely disjunct spots as New Guinea, New Zealand, Australia, and the Andes of South America is difficult to account for in the light of the apparent lack of easily dispersed diaspores. The comment of Sato (1965) that it occurs only on nonvolcanic mountains and dead volcanoes, never on resting or active volcanoes, suggests that dispersal is of great antiquity and not currently occurring." - Thompson, J., 1984. American Arctic Lichens: The Macrolichens.

"T. vermicularis and T. subuiformis are essentially identical in form, but differ in chemistry and distribution." - McCune, Bruce, and Geiser, Linda (2009) Macrolichens of the Pacific Northwest, Second Edition

11/26/2020 - don't recall checking this one with UV, so possibly T. subuliformis, but T. vermicularis more likely in Olympic Mts

my photos arranged by subject, e.g. mountains - www.flickr.com/photos/29750062@N06/collections

my lichen photos by genus - www.flickr.com/photos/29750062@N06/collections/7215762439...

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Taken on: September 24, 2019

Tags:

Thamnolia

vermicularis

Thamnolia vermicularis

Sets appears in: • all lichens 6th set • pattern & texture more » • Olympics • terricolous communities • Thamnolia • all lichens 6th set « less

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