Belgium's Crown Prince Philippe (R) baptizes a Rhododendron plant as Princess Mathilde holds Princess Eleonore next to Princess Elisabeth (L) and Prince Emmanuel (2nd L) during a visit to an exhibition of flowers and gardens called the "Floralies/Floralien" in Ghent April 15, 2010. The crown prince celebrated his 50th birthday today. REUTERS/Francois Lenoir (BELGIUM - Tags: ANNIVERSARY ROYALS)