The orchid registrar has made a number of changes to the list of registered hybrids which have resulted in a re-assignment of genus names to more than 2200 hybrids in the Oncidium group, or just under 20% of the total registrations in this group. For example, two species formerly treated as Miltonia , Milt. schroederiana and Milt. warscewiczii, have been transferred to Oncidium as Onc. schroederianum, and Onc. fuscatum. This change results in a change of genus for the well known and highly awarded hybrid Colmanara Wildcat among others, which is now called Odontocidium Wildcat.
All of the equitant Oncidium species have been segregated out under the genus Tolumnia. The species changing to Tolumnia are: