Identification: Help with identifying lichen, please!

If there's anyone who could identify; I'd very much appreciate it!

(The yellow one and the white one)

 

Hi Sebastian,

Two difficulties here:
- The photos would need to be closer views at higher resolution for ID'ing. Noting that there are limits to identifying lichen by photos: Some you need to see various angles and/or interiors and/or microscopy and/or specifics on habitat.
- The other challenge is that you are in Chile, so many of the lichen species will be different from here in pacific northwest NA.

It is hard for me to tell for sure if the first two photos are of lichens or another organism. The third photo is definitely a lichen, likely fruticose, possibly Usnea, Sphaerophorus, Alectoria or similar genera. The fourth photos shows several species of lichen, some crustose and two or more foliose.

cheers,
frog