Observation 87037: Caloplaca galactophylla (Tuck.) Zahlbr.
When: 2011-10-02
No herbarium specimen

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Good, you have me intrigued now
By: Jason Hollinger (jason)
2012-01-29 13:34:29 CST (-0500)

This has to be interesting, as far as I’m concerned, no matter what it turns out to be!

Not yet
By: Andrew Khitsun (Andrew)
2012-01-28 23:33:33 CST (-0500)

I couldn’t get samples for many rock-dwellers, since I don’t yet have tools to pry them off the rocks. I know exactly where they grow, though. Even though it’s almost two hours to drive, I go in that direction at least once a season, and will collect specimen at some point, hopefully next season. And since it was seen on both sides of our state (MI & MN), I guess you’re probably right about the species.

Rare but not unheard of
By: Jason Hollinger (jason)
2012-01-28 23:09:09 CST (-0500)

Fryday reports it for Michigan. CNALH has a record from Minnesota. It’s possible. You didn’t get a specimen by any chance, did you??

Out of range?
By: Andrew Khitsun (Andrew)
2012-01-28 20:20:49 CST (-0500)

The only problem being: Caloplaca epithallina seems to be Rocky Mountain species, nowhere near Mississippi, let alone east of it. Do you have information indicating it might be in our area?

Very plausible
By: Jason Hollinger (jason)
2012-01-27 23:53:08 CST (-0500)

There are parasitic Caloplaca species, the mostly likely candidate being C. epithallina (orange rims and disk, not discoloring the host orange, no isidia). Note that Brodo covers this species(!) in Lichens of N. Amer. on pg. 199… where it is parasitizing a white lobate Lecanora species, no less. I’m nearly convinced.

Mix
By: Andrew Khitsun (Andrew)
2012-01-27 20:59:32 CST (-0500)

I don’t even know why I posted this – I guess it’s a habit. It seems like the old thallus of (probably) Lecanora valesiaca – see observation 87001 – it grew nearby. And it’s being invaded by Caloplaca species. Any better ideas?

Created: 2012-01-27 20:51:04 CST (-0500)
Last modified: 2015-05-29 22:37:52 CDT (-0400)
Viewed: 52 times, last viewed: 2016-10-23 04:06:56 CDT (-0400)
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