common, especially on bark of hardwoods (gambel oak, cottonwood, aspen)

Species Lists


fallax is the rosette right of center, surrounded by montana

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I didn’t see the note
By: Metalbator (Metalbator)
2013-11-08 08:24:09 CST (-0500)

I do not know X. Montana, a western species, so you may be right.

I agree
By: Jason Hollinger (jason)
2013-11-07 11:32:50 CST (-0500)

See notes for the image. I was assuming the fertile one was X. montana, but I confess I didn’t check the spores. I think we can rule out Xanthoria polycarpa, though, since that species has much more terete or at least subterete lobes. This stuff is clearly broadly foliose.

2 Teloschistaceae?
By: Metalbator (Metalbator)
2013-11-05 09:55:26 CST (-0500)

Looks like there’s 2 Xanthomendoza here: X. fallax (center right) and X. hasseana or Xanthoria polycarpa (the fertile one)?