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 | ... DROPTERO ... (4 elements)en (2) : DIHYDROPTEROATE · TETRAHYDROPTEROYLGLUTAMATE fr (2) : DIHYDROPTEROATE · TETRAHYDROPTEROYLGLUTAMATE |
 | CONDROPTERIGEA · CONDROPTERIGEAS · CONDROPTERIGEOS · DIHYDROPTERIDINE · HYDROPTERIDALE · HYDROPTERIDALES · HYDROPTERIDEES · HYDROPTERIS · PIRUVOILTETRAIDROPTERINA · PYRUVOYLTETRAHYDROPTERIN EFEMEROPTERO · EPHEMEROPTEROIDES · HETEROPTERO · HETEROPTEROLOG · HETEROPTEROLOGIA · HETEROPTEROS · HETEROPTEROUS · NEVROPTEROIDE · NEVROPTEROIDES · TETRAHYDROPTEROYLGLUTAMATE |
 | ... DROPTEROA ... (2 elements) DIHYDROPTEROATE ... DROPTEROY ... (2 elements) TETRAHYDROPTEROYLGLUTAMATE ... YDROPTERO ... (4 elements) DIHYDROPTEROATE · TETRAHYDROPTEROYLGLUTAMATE |