Observation 204775: Peltula euploca (Ach.) Poelt

When: 2015-05-19

Collection location: Atascadero, California, USA [Click for map]

35.4505° -120.6459° 280m

Who: J-Dar

No specimen available

Location is a rural setting in dry grassland/scrub with scattered oaks and pine.
Habitat is a crumbling outcrop of Monterey shale, south-facing.

Thallus peltate, dark brown when dry, olive green when moist, small (less than half cm). Rhizines absent. Underside of thallus lighter in color. Distinctly marginal soralia, darker in color than thallus.

Growing in shaded nooks of the outcrop, whereas two species of Xanthoparmelia are common on exposed edges, observation 203954 and observation 203958.

Not sure what the crustose species is in the photos…


Thallus upperside
Thallus underside
Thallus attachment point

Proposed Names

92% (2)
Eye3 Eyes3
Used references: Nash Sonoran Flora

Please login to propose your own names and vote on existing names.

Eye3 = Observer’s choice
Eyes3 = Current consensus


Add Comment
Marginal Soralia
By: J-Dar
2015-05-22 17:08:39 -05 (-0500)

That distinct marginal soralia feature helped me, and the draft key to genus of the Central Coast, went pretty easy. Had to make a few leaps of faith in the Nash key to species, but overall this one worked for me. Wish they all did!

Good for you!
By: Jason Hollinger (jason)
2015-05-22 10:32:22 -05 (-0500)

I had a heck of a time naming this the first time I saw it. :)

Created: 2015-05-22 09:43:22 -05 (-0500)
Last modified: 2015-05-22 10:31:43 -05 (-0500)
Viewed: 45 times, last viewed: 2018-06-19 13:02:00 -05 (-0500)
Show Log