execution: (law) the completion of a legal instrument (such as a contract or deed) by signing it (and perhaps sealing and delivering it) so that it becomes legally binding and enforceable
subscription: the act of signing your name; writing your signature (as on a document)
cattleya: any orchid of the genus Cattleya characterized by a three-lobed lip enclosing the column; among the most popular and most extravagantly beautiful orchids known