| Isoetales 
 
 aquatic or marsh-growing fern allies;
 known to have existed since the Cenozoic;
 sometimes included in Lycopodiales
 • Syn:
 order Isoetales
 • Hypernyms:
 plant order
 • Member Holonyms:
 Lycopsida, class Lycopsida, Lycopodiate, class Lycopodiate
 • Member Meronyms:
 Isoetaceae, family Isoetaceae, quillwort family
 
 
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