I bought three Tolumia orchids this years OSA orchid show, from Orchids in Our Tropics. They are also known as the equitant oncidiums (equitant describing their overlapping leaf arrangement, like those of an iris). They have somewhat succulent leaves, are miniature and have no visible pseudobulbs and grow drier than other oncidiums. They are excellent space savers! I have them growing in mame bonsai pots with sphag. Also they can rebloom from the same spike so don't cut them.
Tolumnia Irene Gleason ‘Golden Sunset’
Tolumnia Sniffen is about to bloom too. I wonder what colour this one will be. I'll post it later