Manhattanite, Zac Posen has turned over a new, more subdue leaf this season. In the place of audacious statements there is nature sentiments. Wearable where once there was talkable, although not without a hint of playful retrospective. There is plenty of spring in the air this fall; Posen’s collection was no exception. Florals abounded, evident in blouses, skirts and dresses.