In floral formula, ${ }^{\prime} K ^{\prime}$ and ' $C ^{\prime}$ stands for

Write floral formula for a flower which is bisexual, actinomorphic, sepals five, twisted aestivation, petals five, valvate aestivation, stamens six, ovary tricarpellary, syncarpous, superior, trilocular with axile placentation.

Which of the character does not become apparent in floral formula

${{\rm{A}}_{{\rm{1}} + {\rm{(9)}}}}$ stands for