Dryopolystichum

Dryopolystichum is a genus of ferns in the family Lomariopsidaceae,[1][2] with a single species Dryopolystichum phaeostigma.[1][3]

Dryopolystichum
Scientific classification
Kingdom:	Plantae
Clade:	Tracheophytes
Class:	Polypodiopsida
Order:	Polypodiales
Suborder:	Polypodiineae
Family:	Lomariopsidaceae
Genus:	Dryopolystichum Copel.[1]
Species:	D. phaeostigma
Binomial name
Dryopolystichum phaeostigma (Ces.) Copel.[1]
Synonyms[1]
Aspidium phaeostigma Ces. Dryopteris kingii Copel. Dryopteris ledermannii Brause Dryopteris phaeostigma (Ces.) C.Chr. Dryopteris tamatana C.Chr. Polystichum lastreoides Rosenst.

Taxonomy

The genus Dryopolystichum was first erected by Edwin Copeland in 1947 for the species Aspidium phaeostigma.[1] In the Pteridophyte Phylogeny Group classification of 2016 (PPG I), the genus was placed in the family Dryopteridaceae, although left unplaced as to subfamily.[4] It has since been transferred to the family Lomariopsidaceae as a result of molecular phylogenetic evidence.[2]

References

1. Hassler, Michael & Schmitt, Bernd (January 2020), "Dryopolystichum", Checklist of Ferns and Lycophytes of the World, Version 8.20, retrieved 2020-02-03
2. Chen, C.W.; Sundue, M.; Kuo, L.Y.; Teng, W.C. & Huang, Y.M. (2017), "Phylogenetic analyses place the monotypic Dryopolystichum within Lomariopsidaceae", PhytoKeys, 78 (78): 83–107, doi:10.3897/phytokeys.78.12040, PMC 5543276, PMID 28781553
3. "Dryopolystichum J.Sm.", Plants of the World Online, Royal Botanic Gardens, Kew, retrieved 2020-02-03
4. PPG I (2016), "A community-derived classification for extant lycophytes and ferns", Journal of Systematics and Evolution, 54 (6): 563–603, doi:10.1111/jse.12229, S2CID 39980610