Rhododendron macgregoriae (yellow / orange-flowered forms)
Section Euvireya: Subsection Euvireya
Height - to 15m - terrestrial
Leaves - elliptic - 14 x 5cm
Flowers - yellow, orange, pink or red - shortly tubular - 2.5cm - up to 15 per umbel
Location - Indonesia & Papua New Guinea: widespread - 120-3000m
Epithet - after Lady Macgregor, whose husband was Lieutenant Govenor of Papua, a
dedicated explorer and plant collector.
The clone 'Paddy Woods' is named after the collector,
botanist and horticulturalist who worked at the
Royal
Botanic Garden Edinburgh and went on several collecting
expeditions to SE Asia.
The clone 'Tom Grieve' is named for the plantsman who
maintained the Vireya Collection at the
Royal Botanic
Garden Edinburgh for a number of years and was the first
person to persuade
Rhododendron saxifragoides
to flower in cultivation.
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Rhododendron macgregoriae (red-flowered forms)
Section Euvireya: Subsection Euvireya
Height - to 15m - terrestrial
Leaves - elliptic - 14 x 5cm
Flowers - yellow, orange, pink or red - shortly tubular - 2.5cm - up to 15 per umbel
Location - Indonesia & Papua New Guinea: widespread - 120-3000m
Epithet - after Lady Macgregor, whose husband was Lieutenant Governor of Papua, a
dedicated explorer and plant collector.
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Rhododendron madulidii
Section Euvireya: Subsection Euvireya
Height - 1.5m - terrestrial
Leaves - elliptic - 8 x 4cm
Flowers - white, often flushed pink in the wild - tubular-funnel-shaped - 5.6cm -
up to 10 per umbel
Location - Philippines: Palawan Island, Mt. Mantalingajan - 1600-1800m
Epithet - after Domingo Madulid of the National Museum, Manila, Philippines
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Rhododendron majus
Section Euvireya: Subsection Solenovireya
Height - 2m - terrestrial or epiphytic
Leaves - elliptic - 9 x 4cm
Flowers - trumpet-shaped, curved - 9cm - scented - up to 15 per umbel
Location - Indonesia: W. New Guinea: Hubrecht Mts. &
Papua New Guinea: Marafunga
2770-3000m
Epithet - "larger", alluding to the larger flowers than the similar R. carringtoniae
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Rhododendron malayanum
Section Malayovireya
Height - to 5m - epiphytic or terrestrial
Leaves - elliptic - 19 x 4cm - scaly
Flowers - reddish-purple, purplish-pink or greenish-white - cylindrical - 3cm - up to 5 per umbel
Location - Thailand; Malaysia: Peninsular, Sarawak &
Sabah; Indonesia: Sumatra, Java,
Kalimantan, Sulawesi & Maluku - 200-1830m
Epithet - "from Malaya"
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Rhododendron maxwellii
Section Euvireya: Subsection Euvireya
Height - to 2m - terrestrial
Leaves - obovate or elliptic - 10 x 5cm
Flowers - shortly funnel-shaped - 3cm - up to 14 per umbel
Location - Malaysia: Borneo: Sabah: Mt Kinabalu - 2300-2900m
Epithet - after Mr D.R. Maxwell, Assistant District Officer for North Keppel.
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Rhododendron meagaii
Section Hadranthe
Height - 2m - terrestrial
Leaves - elliptic to narrowly elliptic - 2.7‒5.5 x 0.7‒1.9 cm
Flowers - tubular funnel-shaped - tube 2 x 0.4 mm, curved, lobes 0.8 x 0.6 cm, 4‒5 per umbel
Location - Indonesia, Papua Province, Yalimo Regency, Mount Salju
Epithet - after Organes Meaga, Kebun Raya Biologi Wamena technician who helped in collecting this species.
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Rhododendron meijeri
Section Euvireya: Subsection Malesia
Height - 1m - terrestrial
Leaves - elliptic to obovate - 2.7 x 1.8cm
Flowers - funnel-shaped - 2.6cm - up to 8 per umbel
Location - Malaysia: Sabah, G.Tambuyukon - 2400-2500m
Epithet - after Willem Meijer, Dutch botanist and plant collector, who found this species on
the first ascent of G. Tambuyukon.
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Rhododendron meliphagidum
Section Discovireya
Height - 5m - terrestrial
Leaves - obovate - 4.0 x 1.9cm
Flowers - cylindrical - 3cm - solitary or in pairs
Location - Indonesia: Maluku: Buru, Mt. Togha &
Central Seram, Mt. Murkele, Mt. Binaia;
Sulawesi: Mt. Roroka Timbu, Mt. Sojol - 1800-2500m
Epithet - referring to the nectar-eating family of birds, Meliphagidae, the principal pollinators
of this species.
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Rhododendron mendumiae
Section Euvireya: Subsection Euvireya
Height - 1m - terrestrial
Leaves - narrowly obovate - 7.5 x 3cm - at first silvery or brown scaly, quickly glabrescent.
Flowers - funnel-shaped - 6cm long x 10.5cm across - solitary or in pairs - strong, sweet scent
Location - Philippines: Palawan, Cleopatra's Needle - 1600m
Epithet - named for Mary Mendum who was on the expedition which collected this species.
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Rhododendron micromalayanum
Section Malayovireya
Height - 1.2m - epiphytic
Leaves - narrowly elliptic - 4 x 1.2cm - scaly
Flowers - purplish-pink, pale pink or greenish-white - cylindrical - 2.6cm - up to 4 per umbel
Location - Malaysia: Sarawak: Mt. Api, Mt. Mulu, Mt. Murud, Mt. Batu Lawi; Sabah: Mt. Lumarku
800-2000m
Epithet - "like a small R. malayanum"
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Rhododendron micromalayanum (cream-flowered form)
Section Malayovireya
Height - 1.2m - epiphytic
Leaves - narrowly elliptic - 4 x 1.2cm - scaly
Flowers - purplish-pink, pale pink or greenish-white - cylindrical - 2.6cm - up to 4 per umbel
Location - Malaysia: Sarawak: Mt. Api, Mt. Mulu, Mt. Murud, Mt. Batu Lawi; Sabah: Mt. Lumarku
800-2000m
Epithet - "like a small R. malayanum"
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Rhododendron microphyllum
Section Euvireya: Subsection Linnaeopsis
Height - 0.3m - epiphytic
Leaves - broadly elliptic - 0.9 x 0.6cm
Flowers - broadly tubular - 2.8cm - mostly solitary
Location - Indonesia: W. New Guinea: Main Range - 3000m
Epithet - "with small leaves"
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Rhododendron monodii
Section Discovireya
Height - to 4m - terrestrial
Leaves - broadly obovate - 1.4 x 0.8cm
Flowers - tubular - 1.5cm - solitary
Location - Indonesia: C & SE Sulawesi - 2000-3000m
Epithet - after Monod de Froideville, collector of the type specimen.
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Rhododendron multicolor
Section Euvireya: Subsection Malesia
Height - 1.5m - terrestrial or epiphytic
Leaves - narrowly elliptic - 7 x 2cm
Flowers - cream, yellow or red - funnel-shaped - 2cm - up to 6 per umbel - sometimes scented
Location - Indonesia: Sumatra: widespread - 900-2100m
Epithet - "many-coloured" - can show variation in colour of the corolla on the same specimen.
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Rhododendron multinervium
Section Euvireya: Subsection Solenovireya
Height - to 3m - terrestrial
Leaves - obovate-elliptic - 9.5 x 6.5cm
Flowers - trumpet-shaped - 7.5cm - up to 8 per umbel - scented
Location - Papua New Guinea: Eastern Highlands; Simbu District, Western Highlands and
Sepik District - 1370-2050m
Epithet - "many-veined" - alluding to the distinctive veins on the leaves.
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Click image for enlargement.
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