Brooke Fabricant writes: "...I would point out that on number 15, the reference to "spanish moss" is slightly incorrect...
I can't tell from the photo, but it is probably either of two lichens: Ramalina menziesii "lace lichen" or Usnea calilfornica "old mans beard". Spanish moss is in fact not a moss at all but a bromeliad (pineapples are bromeliads). When the Spanish explorers first encountered it in Florida, they thought it looked like the old mans beard that they knew back home called...Usnea. So they named Spanish moss after it. It's species name is usneoides, meaning " resembles usnea."
"I rather like the fact that what people are calling Spanish Moss, the Spanish called it "the plant that looks like old mans beard". And of course everybody's wrong because lichens are in fact fungi and algae and not plants at all..."

I think this might be what is known at Jasper Ridge as Lace Lichen, and what I knew in my youth as Spanish moss. [See <online.sfsu.edu/bholzman/courses/
Fall%2003%20project/R.menziesii.htm> "Although it is a true lichen, Ramalina menziesii is commonly known as both Lace Lichen and Spanish Moss, perhaps for its rather soft appearance and greenish color. "]There is no accounting for "popular" names. Being now associated with Jasper Ridge, I bow to my betters and adopt the official common name. Check it out for yourself: this tree is near the intersection of Trail 10 with Trail 12, or, I think, a little to the west. A very prominent tree north of Trail 12.