Observation 231147: Lichen P. Micheli


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By: Jason Hollinger (jason)
2016-02-12 06:21:06 CET (+0100)

Yeah, well in this case we’re most interested in the shape of the marginal lobes. Who cares about the apothecia? :) In the top photo, the lobes are… well I can’t quite decide! Are they expanded at the tips or not? Some are, some aren’t. They’re more strongly convex than most species except maybe C. trachyphylla, but they aren’t verrucose or densely packed enough to be that species. … Maybe, it’s wrong to say it’s poorly-developed, rather it’s a strange ambiguous form. The second photo is unambiguous… I just don’t know the species! :)

Works for me Jason
By: James Bailey (Silversea_Starsong)
2016-02-12 06:11:48 CET (+0100)

The lichen without apothecia is more developed??? This subject really does hurt my head :)

Figures that like plants you can get stunted lichen growth, though.

I assume they are the same, too
By: Jason Hollinger (jason)
2016-02-12 06:05:05 CET (+0100)

but the one in the first photo isn’t nearly as well-developed. I would concentrate on naming the thing in the second photo and just toss the first photo in as a freeby. ;)

Would assume they are probably the same species
By: James Bailey (Silversea_Starsong)
2016-02-12 05:57:53 CET (+0100)

This is the only place in this vicinity where I see these orange Caloplaca. This one rock face is speckled orange with them. Could still be 2 species, but seems less likely.

I don’t know the species well but…
By: Jason Hollinger (jason)
2016-02-12 04:48:49 CET (+0100)

The description emphasizes that C. ignea has lobes which to no expand toward the tips. The second photo certainly has expanded lobe tips. Not sure about the first still.

Lightly colored C. ignea?
By: J-Dar
2016-02-12 04:25:03 CET (+0100)

Or are those flattened lobe tips just too much for C. ignea? Color, in bright sun, could be similar to this.

By: Jason Hollinger (jason)
2016-02-11 22:07:24 CET (+0100)

The second photo especially.

Created: 2016-02-11 20:19:26 CET (+0100)
Last modified: 2016-02-11 20:19:37 CET (+0100)
Viewed: 46 times, last viewed: 2020-06-08 00:19:17 CEST (+0200)
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