A taxonomic review of the austral genera Asterochaete and Carpha (Cyperaceae, Carpheae)

Jeremy J. Bruhl; Karen L. Wilson; Xiufu Zhang

doi:10.1071/SB23015

RESEARCH ARTICLE (Open Access)

Previous Contents Vol 37(3)

A taxonomic review of the austral genera Asterochaete and Carpha (Cyperaceae, Carpheae)

Jeremy J. Bruhl

^A ^# ^* , Karen L. Wilson

^B ^# and Xiufu Zhang ^A ^C ^#

+ Author Affiliations

- Author Affiliations

^A Botany and N.C.W. Beadle Herbarium, University of New England, Armidale, NSW 2351, Australia.

^B National Herbarium of New South Wales, Botanic Gardens of Sydney, Locked Bag 6002, Mount Annan, NSW 2567, Australia.

^C Present address: Department of Climate Change, Energy, the Environment and Water, GPO Box 3090, Canberra, ACT 2601, Australia.

^* Correspondence to: jbruhl@une.edu.au

^# These authors contributed equally to this paper

Handling Editor: Daniel Murphy

Australian Systematic Botany 37, SB23015 https://doi.org/10.1071/SB23015

Submitted: 22 May 2023 Accepted: 2 April 2024 Published: 10 May 2024

© 2024 The Author(s) (or their employer(s)). Published by CSIRO Publishing. This is an open access article distributed under the Creative Commons Attribution-NonCommercial-NoDerivatives 4.0 International License (CC BY-NC-ND)

Abstract

Tribe Carpheae presently includes Carpha and Trianoptiles. Sixteen species were recovered in Carpha Banks & Sol. ex R.Br. sens. lat. by phenetic analyses and these species were separated into two clades that we recognise here as genera Carpha sens. str. and Asterochaete Nees, on the basis of phylogenetic analyses. We present a new taxonomy for the two genera, including eleven species in Asterochaete (A. acuminata X.F.Zhang, A. angustissima (Cherm.) X.F.Zhang, A. borbonica (Steud.) X.F.Zhang, A. capitellata Nees, A. dactyloides (Vahl) K.L.Wilson & J.J.Bruhl, A. discolor T.H.Arnold ex X.F.Zhang, A. eminii (C.B.Clarke) X.F.Zhang, A. filifolia (C.Reid & T.H.Arnold) X.F.Zhang, A. nitens Kunth, A. schlechteri (C.B.Clarke) X.F.Zhang and A. ulugurensis Nelmes ex X.F.Zhang) and five species in Carpha sens. str. (C. alpina R.Br., C. curvata W.M.Curtis, C. nivicola F.Muell., C. rodwayi W.M.Curtis, and C. schoenoides Banks & Sol. ex Hook.f.), with one unassigned name (Carpha aristata Kük.). Asterochaete acuminata, A. discolor and A. ulugurensis are new species; a new combination, A. dactyloides, is made for what was previously called A. glomerata (Nees) Nees. The ranks of Asterochaete angustissima, Carpha schoenoides and C. nivicola are clarified, whereas Carpha bracteosa C.B.Clarke and C. perrieri Cherm. are synonymised with A. capitellata.

Keywords: Africa, Asterochaete, Australia, Carpha, New Guinea, new species, New Zealand, South America, systematics, taxonomy.

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