UMD + Magical Racial Traits & Oracle Curse Spells

[ericpants]

What is the UMD check for activating a wand of burning hands in the following situations?

Ifrit with the racial trait to cast burning hands once per day. Burning hands not on the Ifrits class spell list.

Oracle with the blackened curse, which adds burning hands to the list of spells known.

[Quandary]

1) the standard DC20 for a UMD to activate a wand. SLA's don't change s%%+, there is no spell list invoked by them.
2) once it is on your spell list (not at earlier class levels), no UMD check is needed.