Eucalyptus cryptica (Myrtaceae): a critically endangered new species
Trevor C. Wilson
A B * , Susan Rutherford B C F , Jia-Yee S. Yap B , Steven M. Douglas D , Enhua Lee E and Maurizio Rossetto B
A Plant Discovery and Evolution, Botanic Gardens of Sydney, Mount Annan, NSW 2567, Australia.
B Research Centre for Ecosystem Resilience, Botanic Gardens of Sydney, Sydney, NSW 2000, Australia.
C Institute of Environment and Ecology, School of the Environment and Safety Engineering, Jiangsu University, Zhenjiang, 212013, PR China.
D Ecological Surveys & Planning, Bundanoon, NSW 2578, Australia.
E Biodiversity and Conservation Division, New South Wales Department of Planning and Environment, Sydney, NSW, Australia.
F Present address: Department of Environmental Science, College of Science Mathematics and Technology, Wenzhou-Kean University, Wenzhou, 325060, PR China.
Australian Systematic Botany 36(5) 386-400 https://doi.org/10.1071/SB22031
Submitted: 5 December 2022 Accepted: 9 August 2023 Published: 5 September 2023
Abstract
Recognition that the critically endangered mallee Eucalyptus sp. Cattai (Gregson s.n. 28 Aug 1954) is a distinct species has been complicated by close morphological similarity between it and other members of E. subgenus Symphyomyrtus section Latoangulatae series Annulares. Recent genomic evidence has demonstrated that it is distinct from other species. In this study, we provide E. sp. Cattai with the new species name, E. cryptica T.C.Wilson, S.Rutherf. & S.M.Douglas, and use genomic scans of adults and seedlings to assist in its description and support its conservation by identifying hybrids. Accompanying the description of E. cryptica are images, diagnostic illustrations and an updated part of the Eucalyptus key for the Flora of New South Wales.
Keywords: conservation, conservation genetics, Eucalyptus, genome‐wide sequencing, hybridisation, Latoangulatae, Symphyomyrtus, taxonomy.
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