Change search
CiteExportLink to record
Permanent link

Direct link
Cite
Citation style
  • apa
  • ieee
  • modern-language-association-8th-edition
  • vancouver
  • Other style
More styles
Language
  • de-DE
  • en-GB
  • en-US
  • fi-FI
  • nn-NO
  • nn-NB
  • sv-SE
  • Other locale
More languages
Output format
  • html
  • text
  • asciidoc
  • rtf
Pindara revisited – evolution and generic limits in Helvellaceae: Generic limits in Helvellaceae
Swedish Museum of Natural History, Department of Botany.
Department of Biosciences, University of Oslo, P.O. Box 1066 Blindern, 0316 Oslo, Norway..
Department of Biosciences, University of Oslo, P.O. Box 1066 Blindern, 0316 Oslo, Norway..
Herbarium, Biodiversity Unit, University of Turku, FI-20014 Turku, Finland..
Show others and affiliations
2019 (English)In: Persoonia, ISSN 0031-5850, E-ISSN 1878-9080, Vol. 42, p. 186-204Article in journal (Refereed) Published
Abstract [en]

The Helvellaceae encompasses taxa that produce some of the most elaborate apothecial forms, as well as hypogeous ascomata, in the class Pezizomycetes (Ascomycota). While the circumscription of the Helvellaceae is clarified, evolutionary relationships and generic limits within the family are debatable. A robust phylogeny of the Helvellaceae, using an increased number of molecular characters from the LSU rDNA, RPB2 and EF-1α gene regions (4 299 bp) and a wide representative sampling, is presented here. Helvella s.lat. was shown to be polyphyletic, because Helvella aestivalis formed a distant monophyletic group with hypogeous species of Balsamia and Barssia. All other species of Helvella formed a large group with the enigmatic Pindara (/Helvella) terrestris nested within it. The ear-shaped Wynnella constitutes an independent lineage and is recognised with the earlier name Midotis. The clade of the hypogeous Balsamia and Barssia, and H. aestivalis is coherent in the three-gene phylogeny, and considering the lack of phenotypic characters to distinguish Barssia from Balsamia we combine species of Barssia, along with H. aestivalis, in Balsamia. The closed/tuberiform, sparassoid H. astieri is shown to be a synonym of H. lactea; it is merely an incidental folded form of the saddle-shaped H. lactea. Pindara is a sister group to a restricted Helvella, i.e., excluding the /leucomelaena lineage, on a notably long branch. We recognise Pindara as a separate genus and erect a new genus Dissingia for the /leucomelaena lineage, viz. H. confusa, H. crassitunicata, H. leucomelaena and H. oblongispora. Dissingia is supported by asci that arise from simple septa; all other species of Helvellaceae have asci that arise from croziers, with one exception being the /alpina-corium lineage of Helvella s.str. This suggests ascus development from croziers is the ancestral state for the Helvellaceae and that ascus development from simple septa has evolved at least twice in the family. Our phylogeny does not determine the evolutionary relationships within Helvella s.str., but it is most parsimonious to infer that the ancestor of the helvelloids produced subsessile or shortly stipitate, cup-shaped apothecia. This shape has been maintained in some lineages of Helvella s.str. The type species of Underwoodia, Underwoodia columnaris, is a sister lineage to the rest of the Helvellaceae

Place, publisher, year, edition, pages
Naturalis Biodiversity Center, 2019. Vol. 42, p. 186-204
Keywords [en]
Balsamia; Barssia; Helvella aestivalis; Midotis; Pezizomycetes; ascus croziers
National Category
Biological Systematics
Research subject
Diversity of life
Identifiers
URN: urn:nbn:se:nrm:diva-3280DOI: 10.3767/persoonia.2019.42.07OAI: oai:DiVA.org:nrm-3280DiVA, id: diva2:1314791
Funder
The Swedish Taxonomy Initiative (ArtDatabanken, SLU), 151/2011Available from: 2019-05-09 Created: 2019-05-09 Last updated: 2019-05-09

Open Access in DiVA

No full text in DiVA

Other links

Publisher's full texthttps://doi.org/10.3767/persoonia.2019.42.07

Search in DiVA

By author/editor
Hansen, Karen
By organisation
Department of Botany
In the same journal
Persoonia
Biological Systematics

Search outside of DiVA

GoogleGoogle Scholar

doi
urn-nbn

Altmetric score

doi
urn-nbn
CiteExportLink to record
Permanent link

Direct link
Cite
Citation style
  • apa
  • ieee
  • modern-language-association-8th-edition
  • vancouver
  • Other style
More styles
Language
  • de-DE
  • en-GB
  • en-US
  • fi-FI
  • nn-NO
  • nn-NB
  • sv-SE
  • Other locale
More languages
Output format
  • html
  • text
  • asciidoc
  • rtf