from a reply on chow hound:

Let's see. There's Pinot Noir and Chardonnay. Then there are Pinot Blanc and Pinot Beurot (Pinot Gris) which were grandfathered in if you already had them planted when the rules were changed. Then there's the rare white clone of Pinot Noir that Gouge has. That may not count as a separate grape, actually. Then there's Sauvignon de Saint Bris near Chablis. Are we considering Beaujolais part of Burgundy today? How many points out of 100 do I get for my answer?

these are white grapes, that can and are made into white burgundy and called white burgundy.

i could not remember earlier, but the wine i acquired was a verget ladoix. in his review, piere roggavani pointed out that it was 25 or 50% white pinot noir