Saturday, April 19, 2025

[Botany • 2025] Hoya biruensis (Apocynaceae: Asclepiadoideae) • A New night-blooming Species of Hoya from Borneo


Hoya biruensis Rodda & S.Rahayu,

in Rodda et Rahayu, 2025. 
illustration by Eunike Nugroho www.instagram.com/inikeke

Abstract
In the present paper, we describe Hoya biruensis, a new species from Borneo, Indonesia, West Kalimantan. It is characterised by a shrubby epiphytic pendulous habit, linear leaves, exceptionally long green peduncles produced at almost every node, and single, night-blooming flowers. We compare it to two morphologically similar species, H. spartioides and H. retrorsa, which are also endemic to Borneo.

Keywords: epiphyte, Hoya retrorsa, Hoya spartioides Indonesia, West Kalimantan



Hoya biruensis Rodda & S.Rahayu, sp. nov. 

illustration by Eunike Nugroho 
 
Hoya biruensis Rodda & S.Rahayu, sp. nov.  


Michele Rodda and Sri Rahayu. 2025. A New night-blooming Species of Hoya (Apocynaceae: Asclepiadoideae) from Borneo. Nordic Journal of Botany. DOI: doi.org/10.1002/njb.04787 [17 April 2025]