Of a different feather: two new species of featherheads from the Ptilotus macrocephalus (Amaranthaceae) complex
Timothy A. Hammer
A C , Robert W. Davis B and Kevin R. Thiele A
+ Author Affiliations
- Author Affiliations
A School of Biological Sciences, Faculty of Science, The University of Western Australia, 35 Stirling Highway, Crawley, WA 6009, Australia.
B Western Australian Herbarium, Science and Conservation, Department of Biodiversity, Conservation and Attractions, Locked Bag 104, Bentley Delivery Centre, WA 6983, Australia.
C Corresponding author. Email: timothy.hammer@research.uwa.edu.au
Australian Systematic Botany 32(1) 61-70 https://doi.org/10.1071/SB18065
Submitted: 30 October 2018 Accepted: 8 April 2019 Published: 8 May 2019
Abstract
Ptilotus macrocephalus (R.Br.) Poir. (Amaranthaceae), commonly known as a featherhead, is a widespread and common species in many parts of Australia. In the present study, we assess morphological variation in P. macrocephalus throughout its geographic range and provide evidence for the recognition of two new species, namely, P. psilorhachis T.Hammer & R.W.Davis and P. xerophilus T.Hammer & R.W.Davis. Geospatial analyses indicated that these new species are partitioned ecologically and geographically.
Additional keywords: Australia, biogeography, ecology, taxonomy.
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