( ( ( The evolution ) ( of ( vascular tissues ) ) ) ( ( ( allowed plants ) ( to ( ( ( grow larger ) and ) ( thrive ( on land ) ) ) ) ) . ) )
(ROOT (S (NP (NP (DT The) (NN evolution)) (PP (IN of) (NP (NN vascular) (NNS tissues)))) (VP (VBD allowed) (NP (NNS plants)) (S (VP (TO to) (VP (VP (VB grow) (NP (JJR larger))) (CC and) (VP (VB thrive) (PP (IN on) (NP (NN land)))))))) (. .)))
The evolution of vascular tissues  allowed plants to grow larger and thrive on land.
(ROOT (S (NP (JJ Vascular) (NN tissue)) (VP (VBD allowed) (NP (DT these) (NNS plants)) (S (VP (TO to) (VP (VB grow) (NP (JJR taller)))))) (. .)))