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both sides; upper surface green, drying dark brown, lower surface pale green, drying 
brown; petiole c. 7-10 mm long, 6-13 mm wide, leaves appearing subsessile due 
to length of blades. Inflorescences developing on the stem (cauliflorous), compound 
cymes 14-16 cm long with up to c. 250 flowers; peduncle dark brown, 3.5-6.5 cm 
long, 13-15 mm wide, branching to 4 orders, bearing flowers usually in triads at their 
tips; bracteoles rudimentary, caducous. Flowers bisexual, white, 18-24 mm long, 
hypanthium turbinate, 12-14 mm long, 3—4 mm wide at the top; sepals rudimentary; 
petals roundish, 3^1 mm across, pale green, caducous at anthesis. Stamens numerous, 
up to 76; filaments 6-10 mm, white; anthers c. 0.3 mm long, dirty white. Pistil 
persistent, green; style 8-18 mm long; ovary inferior. Fruits 4-6 x 4.5-5 cm, ovoid 
to broad-ellipsoid, slightly grooved longitudinally, salmon-pink and sour when fully 
ripe. Seeds 3.5 x 2.8 cm. 
Etymology. We are pleased to name this handsome tree, with foliage very much 
resembling that of Anthurium veitchii Mast. (Araceae), after Mr Tan Jiew Hoe, a 
benefactor of science who has a great interest in natural history, particularly in the 
fields of botany and horticulture (see Kurzweil & Lwin, 2014; Kiew et al., 2015; 
V 
Leong-Skomickova & Newman, 2015; Lamb & Rodda, 2016). 
Distribution and habitat. Syzygium jiewhoei is so far known only from the lowland 
forests around the vicinity of Timika, Papua Province, Indonesian New Guinea. 
However, the species has now been introduced for cultivation as an ornamental tree in 
Bogor (Java, Indonesia) and Singapore (Fig. 3). 
Provisional IUCN conservation assessment. Data Deficient DD, following the 
guidelines in IUCN (2012). Syzygium jiewhoei is known only from Kuala Kencana, 
Timika, Papua Province, Indonesian New Guinea. As the distribution of this species 
is inadequately known, we propose a status of Data Deficient (DD). As for all species 
given this status, reassessment wifi be required as more data is gathered to document 
the flora of New Guinea. One current initiative is the Tropical Important Plant Areas- 
Indonesian New Guinea programme (TIPAs Indonesian New Guinea), led by the Royal 
Botanic Gardens, Kew in collaboration with Universitas Papua (UNIPA), Manokwari, 
to identify important areas for plant conservation with an emphasis on the Bird’s Head 
Peninsula, West Papua Province based on a set of criteria proposed by a team of plant 
conservationists (Darbyshire et al., 2017; Royal Botanic Gardens Kew, 2017). 
Notes. Syzygium jiewhoei is a majestic free-flowering tree with a somewhat broad 
conical crown, which makes it a highly desirable ornamental tree. At maturity it 
produces showy inflorescences on its trunk. Flowers of Syzygium jiewhoei produce 
copious nectar for up to three days after anthesis, thereby attracting large numbers of 
the Asian honey bee (Apis cerana ) and stingless bee ( Trigona laeviceps ). The mature 
salmon-pink fruits of Syzygium jiewhoei range from ovoid to broad-ellipsoid and 
somewhat oblong. 
