Plectranthus laxus and P. wallamanensis (Lamiaceae): new species from tropical Queensland, Australia
Trevor C. Wilson
A B D and Paul I. Forster C
A National Herbarium of New South Wales, Royal Botanic Gardens & Domain Trust, Mrs Macquaries Road, Sydney, NSW 2000, Australia.
B School of Life and Environmental Sciences, Science Road, University of Sydney, NSW 2006, Australia.
C Queensland Herbarium, Department of Environment & Science, Brisbane Botanic Gardens, Mount Coot-tha Road, Toowong, Qld 4066, Australia.
D Corresponding author. Email: trevor.c.wilson@rbgsyd.nsw.gov.au
Australian Systematic Botany 31(6) 433-447 https://doi.org/10.1071/SB18023
Submitted: 26 April 2018 Accepted: 16 August 2018 Published: 12 December 2018
Abstract
Two new species of Plectranthus L’Hér. are described from tropical Queensland. Both Plectranthus laxus T.C.Wilson & P.I.Forst. and P. wallamanensis T.C.Wilson & P.I.Forst. are perennial suffrutescent shrubs found in open, exposed rocky habitats in the Wet Tropics bioregion. Both species are illustrated and notes on habitat, distribution, affinities and conservation status are provided. A revised key for Plectranthus in Queensland and the Australian tropics is presented.
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