Observation 161308: Rhizocarpon Ramond ex DC.

When: 2014-03-02

Collection location: Serra de São Mamede, Portugal [Click for map]

Who: zaca

No specimen available

Notes:
This was perhaps the most intriguing of the lichens I observed this time. It has the shape including a proeminent prothallus and lived among Rhizocarpon spp. in a boulder. However, the thallus itself consists of very small green squamules with whitish margins. So, is it a Rhizocarpon? I have no alternative for the classification.

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Thanks, Jason!
By: zaca
2014-04-05 16:04:14 EDT (-0400)

I have observed before (obsevation 78970) something that I believed (and still do) to be R. bolanderi); This one looks a bit different, namely the colour of squamules, but this could be a consequence of the rainfall. I think that this is no longer a mistery and, probably, it is R. bolanderi again. Thanks, Jason, for the help.

There is something resembling this in N. Amer.
By: Jason Hollinger (jason)
2014-04-05 14:20:50 EDT (-0400)

Consider Rhizocarpon bolanderi. It has the overall habit of a Lecidea atrobrunnea group species, but the spores are clearly brown and muriform. There must be related species in southwest Europe.

Created: 2014-03-13 19:22:41 EDT (-0400)
Last modified: 2014-03-13 19:23:15 EDT (-0400)
Viewed: 17 times, last viewed: 2017-06-18 01:57:42 EDT (-0400)
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