( ( ( The ( floral meristem ) ) under ) ( ( goes ( ( ( a series ) ( of ( developmental changes ) ) ) ( that ( eventually ( ( ( ( give rise ) ( to ( ( the ( four ( basic structures ) ) ) ( of ( the flower ) ) ) ) ) -- ) ( sepals ( , ( petals ( , ( ( stamens and ) carpels ) ) ) ) ) ) ) ) ) ) . ) )
(ROOT (S (NP (NP (DT The) (JJ floral) (NN meristem)) (PP (IN under))) (VP (VBZ goes) (NP (NP (DT a) (NN series)) (PP (IN of) (NP (JJ developmental) (NNS changes))) (SBAR (WHNP (WDT that)) (S (ADVP (RB eventually)) (VP (VBP give) (NP (NN rise)) (PP (TO to) (NP (NP (DT the) (CD four) (JJ basic) (NNS structures)) (PP (IN of) (NP (DT the) (NN flower))))) (: --) (NP (NNS sepals) (, ,) (NNS petals) (, ,) (NNS stamens) (CC and) (NNS carpels))))))) (. .)))
The floral meristem under goes a series of developmental changes that eventually give rise to the four basic structures of the flower --- sepals, petals, stamens and carpels.
(ROOT (S (S (NP (NP (NNS Sepals)) (, ,) (NP (NNS petals)) (, ,)) (VP (VBZ stamens))) (, ,) (CC and) (S (NP (NNS carpels)) (VP (VBP are) (NP (JJ floral) (NNS organs)))) (. .)))