Neither flowers nor branches arranged in acropetal manner in
C. Coriandrum
Reason: The acropetal arrangement means which is the modified form of the racemose inflorescence. An inflorescence may be simple or complex. The rachis may be one of several types including single composite, umbel, spike or raceme. Coriandrum is an example of umbel because that consists of a number of short flower stalks which spread from a common point, somewhat like umbrella-like.