( ( Of ( ( least decomposed ) ( organic layer ) ) ) ( , ( ( containing large ) ( ( ( ( ( amounts ( of ( well-preserved fiber ) ) ) , ) and ) ( called ( the ( fibric layer ) ) ) ) . ) ) ) )
(ROOT (S (PP (IN Of) (NP (ADJP (JJS least) (JJ decomposed)) (JJ organic) (NN layer))) (, ,) (S (VP (VBG containing) (ADJP (JJ large)))) (VP (VP (VBZ amounts) (PP (IN of) (NP (JJ well-preserved) (NN fiber)))) (, ,) (CC and) (VP (VBD called) (NP (DT the) (JJ fibric) (NN layer)))) (. .)))
Of least decomposed organic layer, containing large amounts of well-preserved fiber, and called the fibric layer.
(ROOT (S (NP (NP (NNS Sediments)) (PP (IN in) (NP (JJ oligotrophic) (NNS lakes)))) (VP (VBP contain) (NP (NP (JJ large) (NNS amounts)) (PP (IN of) (NP (JJ decomposable) (JJ organic) (NN matter))))) (. .)))