126 
Card. Bull. Singapore 69(1) 2017 
Notes. In vegetative appearance Hoya juhoneweana subsp. lindforsiana is not easily 
distinguished from the typical subspecies. When in flower, however, they are easily 
distinguished, even in the bud stage. Hoya juhoneweana subsp. juhoneweana has 
globular buds with flattened apices, a more narrowly campanulate corolla, 2.5-3 cm 
wide, and a corona c. 0.9 cm wide, whereas H. juhoneweana subsp. lindforsiana has 
wide flattened buds, a broadly campanulate, almost rotate corolla, 4-5 cm wide, and 
corona c. 1.3 cm wide. The two subspecies are so far only known from their respective 
separate deep montane valleys on each end of the Finisterre-Sarawaged Range, about 
170 km apart. 
Hoya krusenstierniana Simonsson & Rodda, sp. nov. 
Similar to Hoya solaniflora Schltr. being thin wiry climbers with small leaves, 1-7 x 
0.5-4.5 cm, and even flowering herbarium material is difficult to distinguish. In the 
living state, however, it is easily distinguished by its purple to rich crimson flowers 
and by its scent, which is reminiscent of peeled unripe green bananas, whereas Hoya 
solaniflora bears pale flowers in shades of white-yellow-pink, and with a scent more 
similar to Gardenia jasminoides J.Ellis. - TYPE: Papua New Guinea, Morobe Province, 
Mount Kaindi, 7°20'S 146°45'E, edge of mossy forest, climber straggling in regrowth, 
7650 ft [c. 2330 m], 2 November 1966, Ridsdale, C.E. NGF 30193 (holotype LAE; 
isotypes L n.v., BRI n.v., CANB n.v.). (Fig. 16, 17) 
Epiphytic climber with white exudate in all vegetative parts. Stems cylindrical, 1-5 
m long, 1-2 mm in diameter, dark green, glabrous or sparsely pubescent; older stems 
leafless, up to 3 mm in diameter, greyish brown, glabrous; internodes 1—10(—20) cm 
long. Leaves petiolate; petiole terete, 3-10 x c. 1 mm in diameter, green, pubescent 
(glabrescent with age); lamina ovate-lanceolate, thick, fleshy, 1.5-7.5 x 1-3.6 cm, bright 
to dark green on adaxial surface, light green on abaxial surface, glabrous or sparsely 
pubescent on both surfaces when young, glabrous when old, apex obtuse to narrowly 
acuminate to cuspidate, base round to attenuate with basal colleters, margin sometimes 
recurved; venation pinnate, midrib depressed on adaxial surface, secondary veins 2-4 
each side, often slightly depressed on adaxial surface and anastomosing near the leaf 
margin, branching at 30-80°. Inflorescences one per node, extra-axillary, positively 
geotropic, flat to convex, consisting of 5-15 flowers; peduncle terete, peduncle (0.5- 
) 1.5—7 cm x 0.7-1 mm, older peduncles developing arachis from previous flowerings, 
new peduncles sparsely pubescent, older peduncles often glabrous; pedicels terete, 
1-3 cm x 0.5-0.7 mm in diameter, green, pubescent. Flower buds apically flattened, 
green to maroon. Flower scent like peeled green, unripe bananas. Calyx 4-6 mm in 
diameter, lobes ovate-elliptic, 1.5-2 x 1-1.5 mm, apex rounded to acute, glabrous on 
both sides, margin ciliate; basal colleters absent. Corolla rotate, slightly concave, c. 
1.8 cm diameter (c. 2 cm when flattened), pink to rich crimson; tube c. 6 mm long, 
lobes triangular to broadly acuminate, c. 5 x 7 mm, adaxially thickly pubescent, 
abaxially glabrous, margins entire, apex acute. Corona staminal 2-3 mm high, c. 
7 mm in diameter, fleshy, intensely crimson; lobes variable in shape from broadly 
ovate to lanceolate, even within the same population, 4 x 1.5-2 mm, inner processes 
