That said a few where flowering, to start with this is one of my favourites and one i grow at home in a sunny windowsill, Doritis Pulcherrima, although I think its been reclassified as a Phaelenopsis recently?
A real treat to see it in the wild, unfortunately the colours on camera are not the same as in the flesh as you can probably guess from the two following photos, a very common orchid in this locality...
A good one to show when you get the inevitable 'Does my Phal need repotting? type questions at flower shows...
They have been used for breeding phaelenopsis hybrids as the flower spike is long lasting and grows straight up without the need of support.
I only saw one specimen in a tree, the vast majority were growing on rocks, the thing that really impressed me about the plant, is this guy is growing in the flood plain of the river, when it rains its underwater, and subject to some fairly fierce currents by the look of the rock... Several plants were in the flood plains and growing exposed to full sun.
Another ground orchid, no idea what species... (Edit: Eria lasiopetala)
Spathoglottis affinis de-vries
Not sure on this one, maybe a calanthe? (edit: habenaria dentata)
Now for some epiphytes, Dendrobium ellipsifolium
Forgot the name, will update later, a terete leaved epiphyte
+ an ant thingy in the background
Loads of orchids everywhere especially around the waterfalls, sadly most had flowered around april, and like the following were covered in ripening seed pods...
Finally an orchid festooned 'bridge'
Edited by manders, 22 December 2011 - 21:29 PM.