Wikipedia refers to Stehekin as “a small unincorporated community” although later it uses the word “town”. Its pretty small.

Lately I’ve been looking at a few specimens from the Deception Pass area and finding there is a really a lot that I previously missed or ignored. What more am I not seeing there?

(L. rivale tends to look like a crust.)

Thanks for the information. For unknown reasons I find myself suddenly without access to The Bryologist, but I think I got the critical point: it’s rare! No wonder I’ve never heard of it. :) Great find, and just out of “town”. Wow.

I’ll have to find my specimen, but McCune and Geiser (2009) have a page on L. rivals, and say “lobes…rounded apices 0.2-1.0(1.5) mm broad”.

also “Most observers in the upright (standing) position will overlook the dark, tightly appressed rosettes…Look for it on rocks in and along clear cold streams in the mountains. L. rivals varies considerably in form, suggesting that it may include more than one species or that it shows great environmental plasticity.”

It is found along with Peltigera hydrothyria in Opal Creek, OR.

also see Glavich 2009 Distribution, rarity and habitats of three aquatic lichens… in The Bryologist 112(1);54-72

Never seen this before. Hardly even heard of it. Only place I can find any information on it is in Goward’s “Lichens of British Columbia”. I take it this is really tiny? It’s hard to get the scale from this photo.