There's a lot to love about the eclectic jumble of buildings at 605 Barton Springs Road -- the round windows, whimsically painted stucco walls currently rocking shades of turquoise and violet, and the long greenhouse running down the west end of the complex, its panes increasingly smashed out, allowing peeks at the few remaining plants left to run wild inside. This is the former McPhail's Florist shop, first opened here in 1928, and though it's not yet officially recognized as such by the city, it represents a folk landmark for Austinites of a certain . . .