Papers and Proceedings of the Royal Society of Tasmania, Volume 154, 2020 61 LONG-TERM MONITORING OF THE THREATENED LESSER GUINEAFLOWER HIBBERTIA CALYCINA (DC.) N.A.WAKEF. (DILLENIACEAE) IN TASMANIA by Perpetua A.M. Turner, Mark Wapstra, Allison Woolley, Katriona Hopkins, Amelia J. Koch and Fred Duncan (with four text-figures, two plates, one table and five appendices) Turner, P.A.M., Wapstra, M., Woolley, A., Hopkins, K., Koch, A.J. & Duncan, F. 2020 (9:xii): Long-term monitoring of the threatened lesser guineaflower Hibbertia calycina (DC.) N.A.Wakef. (Dilleniaceae) in Tasmania. Papers and Proceedings of the Royal Society of Tasmania 154: 61–82. https://doi.org/10.26749/rstpp.154.61 ISSN: 0080–4703. Forest Practices Authority, 30 Patrick Street, Hobart, Tasmania 7001, Australia (PAMT*, AJK); Discipline of Biological Sciences, School of Natural Sciences, University of Tasmania, Hobart, Tasmania 7001, Australia (PAMT*, AJK); Environmental Consulting Options Tasmania, 28 Suncrest Avenue, Lenah Valley, Tasmania 7008, Australia (MW); Department of Primary Industries, Parks, Water and Environment, 134 Macquarie Street, Hobart, Tasmania 7000, Australia (AW); Stonyford, St Helens, Tasmania 7216, Australia (KH); The Plant Press, 386 Richmond Road, Cambridge, Tasmania 7170, Australia (FD). *Author for correspondence. Email:
[email protected] This paper describes the distribution of the threatened shrub Hibbertia calycina (DC.) N.A.Wakef., a distinctive plant restricted to northeast Tasmania. It compares changes over time in population size and evaluates the species response to disturbance. Results found H. calycina distribution is restricted to isolated clumps on highly insolated ridges and steep upper slopes of fine-grained Mathinna-series sedimentary rocks in dry sclerophyll forest dominated by Eucalyptus sieberi L.Johnson.