There has been a fair bit of rain up our way, much more than in Melbourne itself, so there is plenty of moss around (although not much fungi on trees this year). This yellow stuff only grows in one part of the property, where it is more open and with more sunlight.
Does this mean it's not really moss?!
Whereas down in the creek bed, which is dry (no running water, just some damp), this moss is growing well on the base of an old pussy willow tree. This tree is the only one of its kind on the whole property, so I'm curious as to how it got to grow in the creek.