( ( The ( sporogenous cells ) ) ( ( ( ( undergo meiosis ) and ) ( produce ( microspores ( that ( , ( ( in turn ) ( , ( ( divide mitotically ) ( into pollen ) ) ) ) ) ) ) ) ) . ) )
(ROOT (S (NP (DT The) (JJ sporogenous) (NNS cells)) (VP (VP (VBP undergo) (NP (NNS meiosis))) (CC and) (VP (VB produce) (NP (NP (NNS microspores)) (SBAR (WHNP (WDT that)) (S (, ,) (PP (IN in) (NP (NN turn))) (, ,) (VP (VBP divide) (ADVP (RB mitotically)) (PP (IN into) (NP (NN pollen))))))))) (. .)))
The sporogenous cells undergo meiosis and produce microspores that, in turn, divide mitotically into pollen.
(ROOT (S (NP (NNP Daughter) (NNS cells)) (VP (VBP divide) (PP (IN by) (NP (NNS meiosis)))) (. .)))