Micranthum

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Things like Dendrobium nobiles and Parvi paphs do not come from areas with dry winters.
Dry can be very misleading. It means significantly reduced rainfalls during these winter months, but the area maintains very high humidity during this period which bathes the entire plants on a daily basis.
Field study on Paphiopedilum armeniacum for example reports that the soil (yes they grow on soils over the rocky area) stays moist.
Malipoense typically grows in forest floors with lots of old rotten leaves and soils covering the roots. You can easily imagine this kind of habitat is moist. Similar situation for micranthum.
Epiphytes like Dendrobium nobile will get much drier being up in the tree but remember that they enjoy daily morning shower in the form of dews and highly humid air at all times.
This is nothing like drying them out completely under cultivation.
If you can maintain low enough temperature and high humidity, then you can water them sparingly and mimic the natural environment for them.

South Floria does have a month or two where the minimum temperature drops down to low 60s to high 50s, at times even lower.
This is low enough and long enough period for many species like Dendrobium aggregatum and nobile.

If you keep these plants too warm and dry, forget the flowers. You will end up with dry plants with flat mites feasting on them. lol
 
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