Australian Systematic Botany Australian Systematic Botany Society
Taxonomy, biogeography and evolution of plants
RESEARCH ARTICLE

Splitting Caldesia in favour of Albidella (Alismataceae)

Samuli Lehtonen
+ Author Affiliations
- Author Affiliations

Biodiversity Unit, University of Turku, FI-20014 Turku, Finland. Email: samile@utu.fi

Australian Systematic Botany 30(1) 64-69 https://doi.org/10.1071/SB16050
Submitted: 22 March 2016  Accepted: 21 February 2017   Published: 31 May 2017

Abstract

Phylogenetic analyses based on 10 molecular markers unquestionably support a sister relationship between Albidella nymphaeifolia and the Caldesia oligococca species group. The type species of the genus Caldesia is excluded from this monophylum. These results are unsurprising in the light of morphological characteristics, but require three new combinations in Albidella to render both Albidella and Caldesia monophyletic. These new combinations are provided here. Under the new circumscription, Albidella shows a disjunct distribution pattern, with one species in the Caribbean region and three species distributed from tropical Africa and along the margins of the Indian Ocean to Australia.


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