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Observation 235578: Schadonia Körber

When: 2016-03-27

Collection location: Planalto das Cezaredas, Portugal [Click for map]

Who: zaca

No specimen available

Growing on calcareous rock with traces of mineral deposit.
This is a very special one. It grew (more or less) at the same place than the one of observation 164727 and has a very similar appearance, though probably of the same species. It happens that the first one was classified by me as Schadonia fecunda but, as Jason suggested, Rhizocarpon (particularly R. petraeum or R. umbilicatum) was also possible. I will try to make the microscopy soon to see if it is possible this time to get a better insight about what it is.


Microscopy: Apothecial sections;
Microscopy: Exciple;
Microscopy: Hymenium;
Microscopy: K reaction;
Microscopy: Asci and spores.

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Add Comment
Quite natural, btw!
By: zaca
2016-04-07 17:48:09 CDT (-0400)
Too funny
By: Jason Hollinger (jason)
2016-04-07 17:44:39 CDT (-0400)

See, this is why I keep lots of notes! I can’t remember all the things we’ve seen… ;)

Yes, you have heard it before; See the notes.
By: zaca
2016-04-07 17:36:26 CDT (-0400)
Neat, never heard of Schadonia before
By: Jason Hollinger (jason)
2016-04-07 17:28:26 CDT (-0400)
Microscopy added.
By: zaca
2016-04-06 12:08:42 CDT (-0400)

The novelty in relation to the previous observation is the K+ red reaction of the hypothecium, whereas the reaction was indistinct in other parts of the apothecial section.