106 
Card. Bull. Singapore 69(1) 2017 
Additional specimens examined. PAPUA NEW GUINEA: Western Province: Palmer River, 
2 miles below junction Black River, slender climber common in substage forest of ridges, 100 
m, pale yellow flowers mottled with brown on outer side, Jun 1936, Brass, L.J. 6976 (A n.v., 
BM, BRI n.v., LAE [Sheet 72124]); Palmer River, 2 miles below junction Black River, 100 m, 
small climber in ridge forest, Jun 1936, Brass, L.J. 7021 (BM, BRI n.v.); Palmer River, 2 miles 
below junction with Black River, 100 m, slender climber in ridge forests, Jun 1936, Brass, L.J. 
7072 (A); cultivated plant grown on from Black River, near Dahamo, living accession NS 11- 
100, vouchered at Ukarumpa on 27 May 2012 as Simonsson Juhonewe, N. & Juhonewe, F. 
NS0034L (LAE); cultivated plant grown on from Black River, near Dahamo, living accession 
NS 11-129, vouchered in Ukarumpa on 22 Jun 2012 as Simonsson Juhonewe, N. & Juhonewe, 
F. NS0042L (LAE). 
Notes. A small-flowered species from the lowlands of PNG Western Province that 
may be confused with the widespread and common Hoya globulifera Blume because 
both species have linear-lanceolate leaves with pinnate venation and secondary veins 
held at an acute angle. It is easily distinguished from Hoya globulifera by its very 
short petioles that are only 1-2 mm long, by the peduncles that are c. 1 mm long and 
the inflorescences that have 1-10 cream white to pale yellow flowers, often spotted in 
(brownish) red with short hairs on the inside of the corolla. Hoya globulifera instead 
has petioles > 4 mm long, peduncles > 1 cm long, and inflorescences bearing 10-30 
flowers with a colour range from dull yellow-purple to rich maroon with corollas 
covered by long hairs on the inside. The taxon was long recognised as a new species 
by Paul Forster and David Liddle and the type specimen Brass, L.J. 6883 was already 
labelled as such by them. P.I.Forst. & Liddle are therefore recognised as “ex” authors 
for Hoya brassii. 
Hoya carrii P.I.Forst. & Liddle ex Simonsson & Rodda sp. nov. 
Similar to Hoya solaniflora Schltr. in the rotate corolla, but distinguished from it by the 
plant being a vigorous climber with thick leaves (up to 3 mm thick) and with a corolla 
3 cm in diameter when flattened, whereas H. solaniflora is a more slender vine, with 
thinner laminae (0.5-1.5 mm thick), and flowers c. 2 cm in diameter when flattened. - 
TYPE: Papua New Guinea, Oro Province, Isuarava, epiphytic climber, forest c. 4500 
ft. [c. 1370 m] , 3 March 1936, Carr, C.E. 15904 (holotype SING [SING0227204]; 
isotype B [B100277188], BM [BM001014247], BRI n.v., K, NY [NY00074132], 
SING [SING0227204], LAE). (Fig. 5-7) 
Epiphytic climber , vigorous with white latex in all vegetative parts. Stems cylindrical, 
2-4 m long, 1.5-3 mm in diam., greyish green, glabrous or rarely sparsely pubescent on 
younger stems; older stems leafless, up to 5 mm in diameter, greyish brown, glabrous with 
peeling bark; intemodes 1.5—15(—20) cm long. Adventitious roots sparsely produced 
along the stems. Leaves petiolate; petiole terete, 6-12 x 1-1.5 mm in diam., green 
when young, greyish brown when old, glabrous; lamina narrowly elliptic-acuminate, 
very thick and fleshy, often up to 3 mm thick, (4—)7—13 x (1.5—)2—4 cm, dark green on 
adaxial surface, light green on abaxial surface, glabrous, apex acuminate to acute, base 
