Taxonomic Status of Diploid Southern Hemisphere Brackens (Pteridium: Dennstaedtiaceae)

descriptionPublicationkeyboard_double_arrow_right Article 16 Aug 2012Publisher:Royal Botanical Gardens and Domain TrustJournal:Telopea, volume 14, pages 43-48 (issn: 0312-9764, eissn: 2200-4025,

Copyright policy )

Authors: Thomson, John A.;

doi: 10.7751/telopea2012007

Taxonomic Status of Diploid Southern Hemisphere Brackens (Pteridium: Dennstaedtiaceae)

- Summary
- Subjects
- Metrics

Abstract

Diploid bracken ferns separate morphologically, genetically and reproductively into a predominantly northern hemisphere clade comprising 11 subspecies placed in Pteridium aquilinum (L.) Kuhn and a predominantly southern hemisphere Austral/South American clade of two taxa. Circumscription of Pteridium esculentum (G.Forst.) Cockayne is here emended to include both taxa of the southern clade, respectively P. esculentum subsp. esculentum from Australasia and P. esculentum subsp. arachnoideum (Kaulf.) J.A.Thomson comb. nov. from Central and South America.

Related Organizations

University of Sydney
Australia

Keywords

Source: Biodiversity Heritage Library, Source: BHL, Biodiversity, BHL-Corpus, Source: https://biodiversitylibrary.org

Impact byBIP!

	selected citations These citations are derived from selected sources. This is an alternative to the "Influence" indicator, which also reflects the overall/total impact of an article in the research community at large, based on the underlying citation network (diachronically).	21
	popularity This indicator reflects the "current" impact/attention (the "hype") of an article in the research community at large, based on the underlying citation network.	Top 10%
	influence This indicator reflects the overall/total impact of an article in the research community at large, based on the underlying citation network (diachronically).	Top 10%
	impulse This indicator reflects the initial momentum of an article directly after its publication, based on the underlying citation network.	Average