Ray wrote:
That genus likes it really bright, really warm, really humid, and with lots
of air movement. I don't think the "sphag-n-bag" idea is a good one unless
you can warm it up a lot, but without direct sun.

When I got the few I have, they were in similar condition. I put them in
wooden slat baskets of coarse charcoal, hung them high in the GH, and forgot
about them (except for regular watering along with the rest of my
collection). In a few months they were screaming back to life.

An alternative strategy is to tie the plant on a slab of cork with a
slab of pad of sphagnum. Leave the slab lying horizontally until new
root growth is visible, then return the plant to habging vertically in a
suitably bright spot. I find this technique reliable as I am in a
somewhat arid climate, where I keep the majority of these plants in a
small heatedd glasshouse (min 14° Celsius). This techniques works well
for many vandaceous and angraecoid orchids, and I have managed to flower
a range of species this way.
MarkF