Abstract

A new species of Hoya R.Br. from Sulawesi (Indonesia), Hoya isabelchanae Rodda & Simonsson, is described and illustrated. It is one of the largest flowered species in Hoya section Acanthostemma (Blume) Kloppenb. Its flowers are of comparable size to those of Hoya benchaii Gavrus et al., Hoya kloppenburgii T.Green, Hoya rundumensis (T.Green) Rodda & Simonsson and Hoya sigillatis T.Green ssp. sigillatis, all from Borneo. Among Sulawesi species it is compared with the vegetatively similar Hoya brevialata Kleijn & van Donkelaar and Hoya pallilimba Kleijn & van Donkelaar.

Highlights

  • The Hoya R.Br. diversity of Sulawesi (Indonesia) was investigated rather comprehen­ sively by Kleijn and van Donkelaar (2001) who supported their herbarium studies with extensive field investigations throughout Sulawesi and collected herba­ rium specimens and made extensive collections of sterile plants for growing ex situ.Copyright M

  • A further sterile plant collected in Sulawesi by Steve Scott and brought into culti­ vation at the Royal Botanic Garden Edinburgh is regarded to represent a new species and it is here described as Hoya isabelchanae Rodda & Simonsson

  • Hoya isabelchanae is only known from the base of Gunung Boliohutu, Sulawesi, where it was collected as a sterile cutting in 2002 and brought into cultivation at the Royal Botanic Garden Edinburgh where it regularly blooms in a heated greenhouse from May to October

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Summary

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Hoya isabelchanae Rodda & Simonsson, a new, showy species of Hoya R.Br. (Apocynaceae,Asclepiadoideae) with pomegranate red flowers from Sulawesi, Indonesia. Hoya isabelchanae Rodda & Simonsson, a new, showy species of Hoya R.Br. Academic editor: Pavel Stoev | Received 11 April 2016 | Accepted 27 June 2016 | Published 2 August 2016 Citation: Rodda M, Simonsson Juhonewe N (2016) Hoya isabelchanae Rodda & Simonsson, a new, showy species of Hoya R.Br. (Apocynaceae, Asclepiadoideae) with pomegranate red flowers from Sulawesi, Indonesia.

Introduction
Species treatment
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