Observation 81132: Cladonia P. Browne

When: 2011-10-31

Collection location: Hörnefors, Västerbotten, Sweden [Click for map]

Who: Irene Andersson (irenea)

No specimen available

Growing on acid rocks



Proposed Names

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By: Irene Andersson (irenea)
2011-11-01 17:53:31 EDT (-0400)

looks like a possibility!
Thanks for the tip how to find literature. I found this little goldmine too:
http://www.nhm.uio.no/lav/web/index.html Lots of pictures there.
I know that I can also ask Janolof Hermansson for advice and ID help, and I will eventually do that :-)

Only other thing I can think of is C. squamosa
By: Jason Hollinger (jason)
2011-11-01 16:04:37 EDT (-0400)

It surprises me regularly; it is extremely variable. But this would seem to stretch credulity…

I’ve asked Trevor Goward for literature suggestions. You could try asking Teuvo Ahti (Finnish lichenologist) about Cladonia. I don’t know him well enough to ask myself, but he’s been very generous with help in the past. I’m sure if you looked up his email and sent a nice note you would also be pleasantly rewarded for the effort.

Looked through
By: Irene Andersson (irenea)
2011-11-01 15:29:26 EDT (-0400)

your suggestions, Jason, and none seems to fit well (multiformis not reported here, I think). But I can’t find anything else that looks close either.. These are already rather dry, and have no sorediate tips. I agree that they are not yellowish-green. I should have mentioned that they are small, total length 3 cm, and each of these extremely branched “crowns” around 5 mm – not easy to get good pictures of..

Doesn’t look familiar
By: Jason Hollinger (jason)
2011-11-01 14:15:06 EDT (-0400)

Might help to see a photo when they dry out. But I’m interpreting this as brownish-green, not yellow-green (no usnic acid). Clearly corticate. In North America, I think the options are C. multiformis and … I’m not sure. I can’t tell if the branch tips are sorediate (C. scabriuscula) maybe because it’s wet. But might be other options in Scandanavia. (If it were pale yellow-green, then it might be a remarkably squamulose version of C. amaurocraea.)

Created: 2011-10-31 17:04:32 EDT (-0400)
Last modified: 2011-10-31 17:04:35 EDT (-0400)
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