When: 2015-05-31

Collection location: San Luis Obispo Co., California, USA [Click for map]

35.3417°N 120.6308°W 393m [Click for map]

Who: J-Dar

No specimen available

Heilman Park. Foothill woodland habitat, blue oak (Quercus douglasii) and grey pine (Pinus sabiniana). Growing on twigs of blue oak. Thallus is foliose, tufted, brown when dry/green when wet, with abundant apothecia. Thallus and medulla K-, C- and KC-. Medulla white.

For whatever reason, just didn’t get anywhere in the key with this one that looked right.


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Maybe you headed down the “cetrarioid” branch in the key?
By: Jason Hollinger (jason)
2015-06-01 11:10:36 CDT (-0500)

I would have. And this specimen does have a Tuckermanella-like or Kaernefeltia-like look, to be sure. But soon as you look at the Parmelia s.l. key (in the Sonoran Flora), it should dump you out immediately at Neofuscelia / Melanelia (sensu lato: vol. I came out before Melanohalea, Melanelixia and Montanelia were split off).

Got it!
By: J-Dar
2015-06-01 07:40:40 CDT (-0500)

Thanks Zaca, new genus for me, but I think you definitely got it right. There are apparently 2 species here, Melanohalea subolivacea and Melanohalea multispora. Will need that compound scope to check for number of spores per ascus, otherwise mostly indistinguishable in external features.