Desmophlebium - Misplaced Pages

Genus of ferns

Desmophlebium
Scientific classification
Kingdom:	Plantae
Clade:	Tracheophytes
Division:	Polypodiophyta
Class:	Polypodiopsida
Order:	Polypodiales
Suborder:	Aspleniineae
Family:	Desmophlebiaceae Mynssen, A.Vasco, Sylvestre, R.C.Moran & Rouhan
Genus:	Desmophlebium Mynssen, A.Vasco, Sylvestre, R.C. Moran & Rouhan

Desmophlebium is a genus of ferns. In the Pteridophyte Phylogeny Group classification of 2016, it is the only genus in the family Desmophlebiaceae. Other sources place it in a more widely defined Aspleniaceae.

Taxonomy

The family and genus were erected in 2016, following a molecular phylogenetic study. It was shown that the species previously known as Diplazium lechleri was sister to a clade formed by the families Hemidictyaceae and Aspleniaceae, considerably removed from the Athyriaceae where it had previously been classified. Accordingly, a new genus and family were created and Diplazium lechleri transferred to Desmophlebium lechleri. Another species was added to the genus on the basis of its morphology.

The generic name refers to the distinctive thickened vein running just inside the edge of a pinna (submarginal) connecting the ends of other veins. The authors derived it from the Greek δεσμός, desmos, meaning 'band', combined with φλεβός, phlebos, meaning 'vein'. (Phlebos is the genitive of φλέψ, phleps, 'vein'.)

In the Pteridophyte Phylogeny Group classification of 2016 (PPG I), the family Desmophlebiaceae is a member of the subclass Polypodiidae (the leptosporangiate ferns), order Polypodiales, suborder Aspleniineae – a group known informally as "eupolypods II". A consensus cladogram showing one hypothesis for its relationship to other families in the suborder is:

Desmophlebiaceae

	Hemidictyaceae

	Aspleniaceae

Woodsiaceae

	Onocleaceae

	Blechnaceae

Athyriaceae

Thelypteridaceae

Species

As of July 2019, Plants of the World Online accepts two species:

Desmophlebium lechleri (Mett.) Mynssen, A.Vasco, Sylvestre, R.C.Moran & Rouhan
Desmophlebium longisorum (Baker) Mynssen, A.Vasco, Sylvestre, R.C.Moran & Rouhan

References

^ 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
^ "Desmophlebium Mynssen, A.Vasco, Sylvestre, R.C.Moran & Rouhan", Plants of the World Online, Royal Botanic Gardens, Kew, retrieved 2019-07-26
^ Mynssen, Claudine M.; Vasco, Alejandra; Moran, Robbin C.; Sylvestre, Lana S. & Rouhan, Germinal (2016), "Desmophlebiaceae and Desmophlebium: A new family and genus of Eupolypod II ferns", Taxon, 65 (1): 19–34, doi:10.12705/651.2, retrieved 2019-07-26
Stearn, W.T. (2004), Botanical Latin (4th (p/b) ed.), Portland, Oregon: Timber Press, ISBN 978-0-7153-1643-6, pp. 270, 466

Taxon identifiers
Desmophlebium	Wikidata: Q30110080 CoL: 43PJ GBIF: 9059961 IPNI: 77154279-1 IRMNG: 11905716 NCBI: 1885911 Open Tree of Life: 7045284 POWO: urn:lsid:ipni.org:names:77154279-1 Tropicos: 100442495 WFO: wfo-4001303187

Fern classification

Basal clade

†Ibykales
- †Ibykaceae

†Cladoxylopsida

†Cladoxylales
- †Cladoxylaceae
- †Voelkeliaceae
†Hyeniales
- †Hyeniaceae
†Iridopteridales
- †Iridopteridaceae
†Pseudosporochnales
- †Pseudosporochnaceae
†Steloxylales
- †Steloxylaceae

Polypodiopsida

†Stauropterididae

†Stauropteridales
- †Stauropteridaceae

†Zygopterididae

†Rhacophytales
- †Rhacophytaceae
†Zygopteridales
- †Zygopteridaceae

Equisetidae

†Pseudoborniales †Pseudoborniaceae †Sphenophyllales †Aspidostachyaceae †Boegendorfiaceae †Boegendorfiaceae †Eviostachyaceae †Sphenophyllaceae
Equisetales	†Asterocalamitaceae †Autophyllitaceae †Honseleriaceae †Archaeocalamitaceae †Paracalamitaceae †Calamitaceae †Apocalamitaceae †Konnostachyaceae †Manchurostachyaceae †Notocalamitaceae †Schizoneuraceae †Sorocaulinaceae †Echinostachyaceae †Gondwanostachyaceae †Tchernoviaceae Equisetaceae

Ophioglossidae

Psilotales	Psilotaceae
Ophioglossales	Ophioglossaceae

Marattiidae

Marattiales	†Knorripteridaceae †Pecopteridaceae †Ptychocarpaceae †Weichseliaceae †Asterothecaceae †Danaeopsidaceae Marattiaceae

Polypodiidae

†Anachoropteridales
- †Anachoropteridaceae
- †Psalixochlaenaceae
- †Sermayaceae
†Botryopteridiales
- †Botryopteridiaceae
†Senftenbergiales
- †Senftenbergiaceae
†Urnatopteridales
- †Crossothecaceae
- †Discopteridaceae
- †Urnatopteridaceae

Osmundales

†Guaireaceae
Osmundaceae

Hymenophyllales

Hymenophyllaceae

Thyrsopteridineae	Thyrsopteridaceae Loxsomataceae Plagiogyriaceae Culcitaceae
Cyatheineae	†Tanydoraceae Metaxyaceae Cibotiaceae Dicksoniaceae Cyatheaceae

Polypodiales

Saccolomatineae	Saccolomataceae
Lindsaeineae	Cystodiaceae Lonchitidaceae Lindsaeaceae
Pteridineae	Pteridaceae
Dennstaedtiineae	Dennstaedtiaceae
Aspleniineae	Cystopteridaceae Rhachidosoridaceae Diplaziopsidaceae Hemidictyaceae Desmophlebiaceae Aspleniaceae Thelypteridaceae Woodsiaceae Onocleaceae Blechnaceae Athyriaceae
Polypodiineae	Hypodematiaceae Didymochlaenaceae Dryopteridaceae Lomariopsidaceae Nephrolepidaceae Tectariaceae Oleandraceae Davalliaceae Polypodiaceae

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