Observation 185404: Polysporina simplex (Davies) Vězda

Proposed Names

31% (2)
Recognized by sight
61% (2)
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Used references: Jason Hollinger ID

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Tough group!
By: Jason Hollinger (jason)
2016-01-26 03:08:50 GMT (+0000)

Yeah, I think I didn’t remember that some Sarcogyne have carbonized margins when I wrote my comment below. Sonoran Flora covers most of the species, at least the common widespread ones, so it should be a good reference.

Scrap that – I guess it’s supposed to have cracked rim?
By: Andrew Khitsun (Andrew)
2016-01-26 01:07:57 GMT (+0000)

On the other hand, I am reading that S.regularis can be carbonized too – the only one non-carbonized is S. privigna. I am reading mostly from CNALH, where the info comes from Sonoran Flora, it seems.

Sarcogyne clavus is said to be carbonised?
By: Andrew Khitsun (Andrew)
2016-01-26 00:52:39 GMT (+0000)

For some reason I never see that species being discussed. This particular specimen I’d rule out S.privigna just because apothecia are bigger here. But don’t know anything about S.clavus

Not very confident…
By: Jason Hollinger (jason)
2015-01-25 15:51:56 GMT (+0000)

Polysporina is first and foremost defined by roughened umbonate or gyrose apothecia… this clearly has smooth round apothecia. But in section, I find the exciple to be fully carbonized and the epihymenium to be very dark, too. (Hymenium ~120µm deep; spores many per ascus, ~4-5×2-2.5µm.) The carbonized exciple should rule out Sarcogyne, perhaps more reliably than the lack of textured apothecia would otherwise rule out Polysporina.

Created: 2014-10-25 00:15:46 BST (+0100)
Last modified: 2015-12-16 20:06:19 GMT (+0000)
Viewed: 97 times, last viewed: 2016-10-28 08:15:01 BST (+0100)
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