( ( ( ( ( ( The mycelium ) ( is ( superficial ( on ( ( host tissue ) ( in ( most genera ) ) ) ) ) ) ) , ) but ) ( ( in ( some ( such ( as Oidiopsis ) ) ) ) ( , ( ( the mycelium ) ( is internal ) ) ) ) ) . )
(ROOT (S (S (NP (DT The) (NN mycelium)) (VP (VBZ is) (VP (VBN superficial) (PP (IN on) (NP (NP (NN host) (NN tissue)) (PP (IN in) (NP (JJS most) (NN genera)))))))) (, ,) (CC but) (S (PP (IN in) (NP (NP (DT some)) (PP (JJ such) (IN as) (NP (NNP Oidiopsis))))) (, ,) (NP (DT the) (NN mycelium)) (VP (VBZ is) (ADJP (JJ internal)))) (. .)))
The mycelium is superficial on host tissue in most genera, but in some such as Oidiopsis , the mycelium is internal.
(ROOT (S (NP (NP (DT Some)) (PP (IN of) (NP (DT the) (JJ giant) (NN fairy) (NNS rings)))) (VP (VBP are) (VP (VBN produced) (PP (IN by) (NP (NN mycelia))))) (. .)))