The forked ferns are the family Gleicheniaceae, which includes six genera and about 160 known species. The formerly independent families Dicranopteridaceae and Stromatopteridaceae are generally included in the Gleicheniaceae, whereas the Dipteridaceae and Matoniaceae, although closely related, are considered separate families by most authors.
These tropical ferns are the most widespread living lineage of Gleicheniales. Their rhizomes have a 'vitalized' protostele or in some taxa a solenostele. The ...
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