On Betula papyrifera. Spores: 5.4-6.3 µ, nearly smooth.
New species for BC, with a little help from my friends on on Slime mold Facebook group on id. not sure what I have here. At first I thought it might be denudata, but it keeps it colour in Hoyer's medium and these don't. I also looked at affinis, but it also keeps it's colour in Hoyer's - or at least the specimen I collected as A. affinis keeps it's colour in Hoyer's. Arcyria major loses it's colour immediately in Hoyer's, but it has a much shorter stalk. I don't have great faith in my exact measurements, but I do know that they can fit pretty much fit every red Arcyria I know about.