Observation 26239: Platismatia glauca (L.) W.L. Culb. & C.F. Culb.

When: 2009-10-04

Collection location: Larch Mountain, Multnomah Co., Oregon, USA [Click for map]

Who: Daniel B. Wheeler (Tuberale)

No specimen available

Thallus is apple-jade green with white eruptions, sometimes forming near raised veins in broadly foliose section, much like lettuce leaves. Underside comprised of white eroded areas and new growth, becoming buff-brown (similar to brown seaweed), and finally becoming nearly purple-black where holdfasts form. Holdfasts appear to have white cores.

Proposed Names

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

Eye3 = Observer’s choice
Eyes3 = Current consensus


Add Comment
After comparing to other Platismatia glauca
By: Daniel B. Wheeler (Tuberale)
2009-10-06 07:15:25 CEST (+0200)

including material I have found at this site, I agree with you. Platismatia glauca.

Platismatia glauca
By: smilacina
2009-10-05 21:58:58 CEST (+0200)

looks like a very green Platismatia glauca, or “dirty rag” lichen – the presence of white, brown, and black on the underside is a good clue, and the tattered appearance… this is a very variable and common species, often more greyish white but i’ve seen it quite green before too…

Created: 2009-10-05 05:37:23 CEST (+0200)
Last modified: 2009-10-05 05:37:23 CEST (+0200)
Viewed: 61 times, last viewed: 2017-06-06 10:34:48 CEST (+0200)
Show Log