What colour were the flowers when it was blooming? If yellow, and it grew from a rosette of leaves clustered on the ground, it could be skeleton weed, which is a reportable weed. If so, it would be best to check with the Ag Dept as if it gets hold it can be a big problem.

There is no distinctive odor with fresh tea Camellia leaves. I would treat it as a houseplant till you learn more. You may have to wait for it to bloom before you know with certainty. I would place it outdoors in partial shade once frost danger is over. It will certainly grow better outdoors during the warmer months. Tea blossoms are white with yellow centers and about an inch across. They are usually fragrant and typically bloom in fall. Bees find them irresistible.

I know diddly about New Zealand mosses, but this looks to be a pretty good website and you can ask questions about native NZ plants there - http://www.nzpcn.org.nz (New Zealand Plant Conservation Network). I hit "Native Flora" under "Quick Search" over on the right and typed "moss" into the common name field and it came up with 2 pages of hits. Sadly, a lot of the plants don't have pictures, but if you click on the plants name, it gives an extensive description of the plant.

The last two are lichens. Try comparing the yellowish one to Candelaria concolor. FataMorgana