Hoya of Papuasia I. 
133 
the pollinia do not have a sterile edge, as has also been observed in Hoy a juhoneweana 
and Hoya urniflora but otherwise present in most other Hoya species. Notable 
exceptions are also the species in Hoya section Eriostemma and the species formerly 
included in the genus Clemensiella. 
Hoya stenakei Simonsson & Rodda, sp. nov. 
Similar to Hoya onychoides P.I.Forst., Liddle & I.M.Liddle in flower size and clawed 
corolla but differs from it by the almost pentagonal corona and densely pubescent 
corolla whereas H. onychoides has a narrowly star-shaped corona and glabrous 
corolla. - TYPE: Papua New Guinea, Sandaun Province, Baiberi, 1 March 2011, 
lowland rainforest. Simonsson Juhonewe, N., & Juhonewe, F. NS0026H (holotype 
LAE; isotype SING). (Fig. 19, 20) 
Vigorous epiphytic climber with white latex in all vegetative parts. Stems cylindrical, 
3-10 mm in diameter, dark green, new growth often slightly pubescent, later glabrous; 
older stems leafless and lignified, up to 15 mm in diameter, greyish-brown, glabrous 
with peeling bark; internodes 3-30 cm long. Leaves pendulous, petiolate; petiole 
terete, 20-50 x c. 4-8 mm in diameter, green to brown, glabrous (sparsely pubescent 
when young); lamina lanceolate, very succulent and fleshy, 10-30 x 5-12 cm, dark 
green on adaxial surface, light green on abaxial surface, glabrous, apex acute, base 
cordate; pinnate, midrib depressed on adaxial surface, secondary veins 4-7 each side, 
secondary veins sometimes protruding, anastomosing in the middle between midrib 
and leaf margin, branching from the midrib at 45-80°. Inflorescences one per node, 
extra-axillary, positively geotropic, pseudo-umbelliform, convex, consisting of 2-10 
flowers; peduncle terete, 2-7 cm x 2-5 mm, older peduncles forming a rachis from 
previous flowerings. Flowers scented like Gardenia jasminoides , especially at night. 
Corolla spreading, c. 7 cm when flattened, pastel pink with 2-3 cm wide pale cream 
yellow centre inside, outside cream; tube c. 1.5 cm long, inside pubescent, outside 
glabrous, lobes fleshy, triangular-acuminate, c. 3 x 2 cm, inside thickly pubescent, 
denser along margin and on apices, outside glabrous, margin c. 5 mm reflexed to 
revolute, apex acute. Corona staminal c. 1 cm high, 2 cm in diameter, fleshy, cream 
coloured; lobes rhomboid, centrally ridged and laterally grooved, c. 1 x 0.7 cm, inner 
processes cuspidate, meeting in centre, outer processes laterally compressed, c. 0.8 cm 
lower than inner processes, basal margins spreading, touching only towards the apex 
of the outer corona lobe. Style-head convex, hidden by anther appendages, which in 
turn are partially covered by the overlapping inner coronal processes. Pollinia linear, 
E9-2.1 mm x 450-550 pm, lacking sterile edge, corpusculum 550-650 x 400^150 
pm, caudicles attached at the middle of corpusculum, 250-300 x c. 150 pm. Ovary 
conical, c. 8 mm long, glabrous. Fruits and seeds not observed. 
