Observation 117001: Lichen P. Micheli

When: 2012-11-10

Collection location: Reserva de Vida Silvestre San Pablo de Valdés, Chubut Province, Argentina [Click for map]

-42.6849° -64.2464° 3m

Who: nastassja (Nastassja Noell)

Specimen available

Substrate: Soil amongst shrubs.

Habitat: Arid. Dunes, about 20m from shore. Underneath shrubs, particularly Chuquicaya avelloneda.

I think that this is growing with a Collema sp. but is not a Collema by any means, though some of the Collema sp. apothecia seem to be present too… but maybe these are just the odd ball apothecia of the Collema around here? Not sure, but I think these peltate squamules are not apothecia, though there does apear to be a few flat Collema type apothecia in the back of the photos.

Species Lists


I think this is the same lichen but is being parasitized by another lichen or fungi….

Proposed Names

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Add Comment
Yes he is.
By: Jason Hollinger (jason)
2012-11-20 19:14:52 EST (-0500)
Nathan is awesome!
By: nastassja (Nastassja Noell)
2012-11-20 18:00:14 EST (-0500)
I wish I could take credit
By: Jason Hollinger (jason)
2012-11-19 16:06:29 EST (-0500)

The rearrangement of the species pages was all Nathan’s work! All I did was say “yes that looks great, you have my permission to release it”. :)

Wow, Toninia seems really super close…
By: nastassja (Nastassja Noell)
2012-11-19 15:08:04 EST (-0500)

there are other specimens from other areas of the reserve that fit really well, at least superficially…

P.S. I really like the new pages for the genus and species — having ¨most confident¨ observations pop up at the top, having the description page right there. Love it! Awesome Jason!!!

By: Jason Hollinger (jason)
2012-11-17 03:04:32 EST (-0500)

The last photo especially looks like a good match. Zaca has some good observations of pruinose soil-dwelling Toninia and Psora. You might have a look at those.

But I wouldn’t rule out Collema for the top photo until you’re sure which of those disks are squamules (the convex ones with dimples in the center?) and which are apothecia… These are so hard to photograph even in good conditions.

Created: 2012-11-16 23:25:32 EST (-0500)
Last modified: 2012-11-16 23:25:35 EST (-0500)
Viewed: 54 times, last viewed: 2018-04-22 11:14:18 EDT (-0400)
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