120 
Card. Bull. Singapore 69(1) 2017 
Fig. 12. Comparison between Hoya juhoneweana ssp. lindforsiana Simonsson & Rodda 
(A, D, from Simonsson Juhonewe, N. & Juhonewe, F. NS0068L ), Hoya juhoneweana ssp. 
juhoneweana Simonsson & Rodda (B, E, from Simonsson Juhonewe, N. & Juhonewe, F. 
NS0016H ) and Hoya urniflora (RI.Forst.) Simonsson & Rodda (from Simonsson Juhonewe, 
N. & Juhonewe, F. NS0102L ). A-C. Corolla from above. D-F. Corolla, side view. (Photos: F. 
Juhonewe) 
Etymology. Named after the first author’s colleague, Foreting Juhonewe, who is also 
from Hoboc village. He has been of great importance for this research. He has eagerly 
tried to find more of this rare and diminishing Hoya and promoted its conservation in 
situ amongst his clan’s people. 
Habitat and ecology. This taxon co-occurs with two other new species described here, 
H. edholmiana and H. urniflora. At the type locality this taxon and Hoya urniflora 
inhabit only mossy riverine forest on mature trees in primary forest and were not 
found in the adjacent mature secondary forest and in the subsistence gardens. The co- 
occuring taxon Hoya edholmiana , however, is more abundant and also occasionally 
found in mature secondary forest. 
Provisional IUCN conservation assessment. Critically Endangered CR Blab(ii,iii,v), 
D (IUCN, 2016). This subspecies has only been recorded at the type locality, despite 
extensive field expeditions in the Finisterre-Sarawaged Range by the first author and 
