Collection location: Miramar Lake, San Diego, California, USA [Click for map]
Growing on soil along a steep bank among eucalyptus trees. Some cupped podetia present with soredia inside and outside.
|User’s votes are weighted by their contribution to the site (log10 contribution). In addition, the user who created the observation gets an extra vote.|
|I’d Call It That||3.0||5.44||1||(jason)|
sum(score * weight) /
(total weight + 1)
The quantities of substances (e.g., atranorin in nashii) are pretty low to start with, and the K+y is complicated by the K+ brown-red of fumarprotocetraric.
If you happen to have a good UV lamp (±350 nm, not the UV LED flashlights used to look for scorpions in the desert, those are too long wavelength), then you can check for a subtle UV+y after applying a small amount of NaOH or KOH… and let it dry thoroughly before checking UV. Atranorin is the only substance I have found that gives a UV+y after K. But again, other substances can interfere; they often cause UV to quench after KOH, so the fumarprotocetraric will tend to cancel the "KUV"+y from atranorin.
There’s no winning with Cladonia. Sometimes you just have to resort to TLC or HPLC to be confident.
The characteristics and substrate are remarkably similar to those species. I tried applying NaOH to the cups but they didn’t appear to turn yellow but I want to try again with fresher specimens to see if that makes a difference. Yeah, IMO I would vote for C. hammeri. Thanks Jason!
Created: 2018-09-30 15:49:40 EDT (-0400)
Last modified: 2018-10-03 16:40:09 EDT (-0400)
Viewed: 31 times, last viewed: 2019-07-05 04:22:04 EDT (-0400)