( ( Each ( of ( these ( axillary branches ) ) ) ) ( ( ( ( grows slightly ) and ) ( then ( develops ( ( ( ( its ( axillary buds ) ) , ) and ) ( so on ) ) ) ) ) . ) )
(ROOT (S (NP (NP (DT Each)) (PP (IN of) (NP (DT these) (JJ axillary) (NNS branches)))) (VP (VP (VBZ grows) (ADVP (RB slightly))) (CC and) (VP (ADVP (RB then)) (VBZ develops) (NP (NP (PRP$ its) (JJ axillary) (NNS buds)) (, ,) (CC and) (ADVP (RB so) (RB on))))) (. .)))
Each of these axillary branches grows slightly and then develops its axillary buds, and so on.
(ROOT (S (NP (NP (DT A) (-LRB- -LRB-) (NN n) (-RRB- -RRB-)) (NP (DT an) (JJ axillary) (NN bud))) (VP (VBZ is) (PP (IN above) (NP (DT each) (NN leaf) (NN scar)))) (. .)))