These are native
to northwest Madagascar; the Sambirano valley around Mount Tsaratanana.
At this writing, it is January and our plants are exhibiting the typical
signs of slight dehydration. This species does not seem to respond to
attempts to provide additional moisture during its resting period. Potting
in clay with a fast draining medium would possibly help this condition
but it just seems to have an annual cycle where the leaves plump up during
the growing season and shrivel slightly during its resting period. In
our experience, equitans prefers intermediate conditions, not the cool
to cold temperature that some would claim.
Very little cultural information is currently available for this and many
other obscure Angraecoid species. We are growing ours on a south facing
screen in fairly bright filtered light, surrounded by spanish moss. We
water daily as we do for most plaques with RO water and dilute fertilizer
and micronutrient supplements. We cut back to 2 or 3 weekly waterings
during the winter as our days get short and temperatures stay in the 60s
and 70s. So far they seem to grow at a steady rate and do not exhibit
the need for a pronounced dormancy. This plant is from our breeding program;
the parent plants are from Madagascar.