I went and observed a Western Redbud tree at the corner of Holt Hall in CSU Chico at approximately 12:57 PM. I could see that there are some flowers and leaves sprouting. There were no animals nearby the shrub/tree and it was sunny outside.
On moss on rock
Dark lower surface
Loosly attached to moss on rock
ID by tom carlberg
Growing on moss on rock
On rock, crustose
White rhizines, pale lower surface, lobes various widths, apothecia with brown disks
ID by Tom Carlberg
Psytonum palmetum, hairy, esp in dry areas
On olive tree bark
Brownish green upper surface, brown apothecia with pale margins
Edges of lower surface are pale/light brown, brown rhizines that are simple and unbranched
K-, C+ green then white on cortex, C+ orange/red on medulla
2. Stratified foliose
17. Thallus not umbilicate
21. Thallus other (not yellow/orange)
24. Lobes not hollow
25. Thallus clearly foliose
26. Lower surface not cottony or with veins
27. ... interior (white center layer) (but this goes to 28: pseudocyphellaria or Letochidium alciliatum)...which doesn't appear correct.
29. Thallus - not pale yellow-green
30. white spots absent
31. on bark
32... not flavoparmelia...
Keyed this out with JJ and Tom. My first keyed specimen!!!!!
KC test changes to red
k Test turns it red...
Exciting find by a Botanist.
Tonella tenella. Only one in its Genus.
Class not focused on Crustose lichens, but...these were too cool.