Rhododendron praetervisum Sleumer, Blumea 21: 376 1973. ;

Borneo (Sabah) as per Catalogue of Life;

Plant seen inside the Conservatory with purple flowers.

Have no idea what they can be.

Please, in future, take more photos. It is helpful to see the entire plant, the stems, leaf arrangement, front and back of leaves. Thank you.

This has been identified by their Planthotline as Rhododendron praetervisum.
Only five plants are allowed for id per week.
So it’s a slow process.