When: 2017-01-26

Collection location: Oak Harbor, Whidbey Island, Island Co., Washington, USA [Click for map]

Who: Rand Workman (Ranmofod)

No specimen available

Growing on the bank of a roadside ditch.

Species Lists


Proposed Names

28% (1)
Used references: Lichens of N.A. (pg.228)

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= Observer’s choice
= Current consensus


Add Comment
Ya, LNA says
By: Rand Workman (Ranmofod)
2017-01-31 20:47:23 ACDT (+1030)

C. rangiferina-“…[branched] sometimes in fours; surface surface dull, fibrous or webby, with scattered, rounded bumps; PD+, UV-”

C. portentosa ssp. pacifica – “…[branched] commonly in threes, sometimes in twos; surface tissue (over inner translucent stereome) very thin, in scattered flocculent patches; PD-, UV+”
[compared to C. rangiferina “…more slender, & less combed to one side”]

Yes, I will pack up my lapidary UV hand-held, for when I am driving by this spot again, as it has both longwave/shorwave.

By: Jason Hollinger (jason)
2017-01-31 20:04:52 ACDT (+1030)

But if you really want to be certain, I think you would need to rule out C. portentosa. I remember someone showing me C. portentosa ssp. pacifica at Deception Pass, so it’s around. I seem to remember it differed from C. rangiferina in being UV+ and the texture of the branches being odd, less smooth, like tufts of tomentum or something like that. A very vague memory. I think Brodo included it in LNA.