| Basic info | Taxonomic history | Classification | Included Taxa |
| Morphology | Ecology and taphonomy | External Literature Search | Age range and collections |
Polystichum
Taxonomy
Polystichum was named by Roth (1799). It is extant. It was considered monophyletic by I (2016).
It was assigned to Polypodiaceae by Knowlton (1919); to Dryopteridaceae by Chauhan (1991); and to Dryopteridoideae by I (2016).
It was assigned to Polypodiaceae by Knowlton (1919); to Dryopteridaceae by Chauhan (1991); and to Dryopteridoideae by I (2016).
Species
Species lacking formal opinion data
Synonymy list
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If no rank is listed, the taxon is considered an unranked clade in modern classifications. Ranks may be repeated or presented in the wrong order because authors working on different parts of the classification may disagree about how to rank taxa.
Diagnosis
No diagnoses are available
Measurements
No measurements are available
No ecological data are available
Age range: base of the Early/Lower Pliocene to the top of the Quaternary or 5.33300 to 0.00000 Ma
Collections (11 total)
| Time interval | Ma | Country or state | Original ID and collection number |
|---|---|---|---|
| Early/Lower Pliocene - Late/Upper Pliocene | Bolivia (Potosi) | P. bolivianum (32127 32143) | |
| Early/Lower Pliocene - Late/Upper Pliocene | Bolivia (La Paz) | P. bolivianum (32129) | |
| Quaternary | India (Assam) | P. sp. (228813 228814 228815 228816 228817 228822) | |
| Quaternary | India (Tamil Nadu) | P. sp. (228848 228849) |