By Lenn Thompson, Executive Editor When my colleague Evan Dawson introduced us to Lamoreaux Landing 2009 Round Rock Vineyard Riesling ($20) several months ago, I'll admit to being skeptical. Partial malolactic fermentation with riesling? Really? Yes, really. And while it may have tasted like "dairy" or "peanuts" at the time, I think you almost have to know about the ML to notice it in any overt way today. Flinty and slate-y, the nose shows bright green apple fruit character and a subtle lemongrass aroma as well. As the wine warms to room temperature, there is a faint milky —…