Great pictures, Dave!
The first one is a
Polyradicion lindenii in spike... and the second is
Anacheilium cochleata var.
triandra.
The third one is not an orchid, as you said... the fourth is another
Epidendrum amphistomum, with an
Epidendrum nocturnum just above it (the longer, thinner canes). The last one is
Pleurothallis gelida... great finds!
-Pat
PS: For a second, I thought the second picture was
Brassia caudata...
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you would have rediscovered the now extirpated species
