Index

R. 'Dryade'

Azalea Hybrid

? X ?

Hybridized By: Schulz, O. (head-gardener, Royal Porcelain Factory)

R. 'Dryope'

Rhododendron Hybrid

? X ?

Hybridized By: Sunningdale Nursery

R. 'Du Pont's Apricot'

Rhododendron Hybrid

? X ?

Hybridized By: Gable, J.B.

R. 'Duane Johnson'

Rhododendron Hybrid

R. 'Butter Brickle' X R. 'September Song'

Hybridized By: Winberg, John, D.

More information and pictures

R. 'Duc Adolphe de Nassau'

Azalea Hybrid

? X ?

R. 'Duc Adolphe de Nassau'

Rhododendron Hybrid

? X ?

Hybridized By: Verschaffelt, A. (Alexander)

R. 'Duc d'Anjou'

Rhododendron Hybrid

? X ?

Hybridized By: Leroy, A.

R. 'Duc d'Arenberg'

Azalea Hybrid

? X ?

Hybridized By: Verschaffelt, A. (Alexander)

R. 'Duc de Cumberland'

Azalea Hybrid

? X ?

Hybridized By: Van Houtte, L. B. (Louis Benoit)

R. 'Duc de Malakoff'

Azalea Hybrid

? X ?

Hybridized By: Boddaert, B.

R. 'Duc de Nassau'

Azalea Hybrid

? X ?

R. 'Duc de Provence'

Azalea Hybrid

? X ?

Hybridized By: Baumann, J.

R. 'Duc de Rohan'

Azalea Hybrid

? X ?

More information and pictures

R. 'Duchess Ferreti'

Rhododendron Hybrid

? X ?

Hybridized By: Rothschild, Edmund Leopold de

R. 'Duchess of Connaught'

Vireya Hybrid

R. brookeanum ssp brookeanum var gracile X R. lobbii

Hybridized By: Mason

R. 'Duchess of Cypress'

Azalea Hybrid

? X ?

Hybridized By: Peterson, N.C. & Stabler, D.

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R. 'Duchess of Edinburgh'

Rhododendron Hybrid

? X ?

R. 'Duchess of Edinburgh'

Vireya Hybrid

R. brookeanum ssp gracile X R. longiflorum var longiflorum

Hybridized By: Veitch & Sons, R.

R. 'Duchess of Fife'

Vireya Hybrid

R. 'Princess Royal' X R. javanicum ssp teysmannii

Hybridized By: Veitch & Son, J.

R. 'Duchess of Teck'

Rhododendron Hybrid

? X ?

Hybridized By: Waterer (Bagshot)

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R. 'Duchess of Teck'

Vireya Hybrid

R. 'Princess Royal' X R. brookeanum ssp brookeanum var gracile

Hybridized By: Veitch & Son, J.

R. 'Duchess of York'

Rhododendron Hybrid

? X ?

Hybridized By: Paul, G.

R. 'Duchess Satin'

Vireya Hybrid

R. konori var konori X R. leucogigas

Hybridized By: Rouse, J.L.

R. duclouxii

Natural Hybrid

R. scabrifolium var spiciferum X R. spinuliferum

R. 'Duenna'

Azalea Hybrid

? X ?

Hybridized By: Morrison, B.Y.

R. 'Duet'

Rhododendron Hybrid

? X ?

Hybridized By: Leach, Dr. David G.

R. 'Duets'

Azalea Hybrid

? X ?

Hybridized By: Kondratovičs, Rihard

R. 'Duke of Cornwall'

Rhododendron Hybrid

? X ?

Hybridized By: Gill, Richards & Sons

R. 'Duke of Cornwall Group'

Rhododendron Cultivar group

? X ?

Hybridized By: Gill, Richards & Sons

R. 'Duke of Edinburgh'

Azalea Hybrid

? X ?

Hybridized By: Rollisson & Sons, W.

R. 'Duke of Lauzun'

Azalea Hybrid

? X ?

Hybridized By: Cole, D.J.

R. 'Duke of Portland'

Rhododendron Hybrid

? X ?

Hybridized By: Waterer (Bagshot)

R. 'Duke of Teck'

Vireya Hybrid

R. brookeanum ssp gracile X R. 'Princess Royal'

Hybridized By: Veitch & Son, J.

R. 'Duke of Wellington'

Azalea Hybrid

? X ?

Hybridized By: Henderson & Co

R. 'Duke of York'

Rhododendron Hybrid

R. fortunei ssp fortunei X R. 'Scipio'

Hybridized By: Paul, G.

More information and pictures

R. 'Dukeshill'

Rhododendron Hybrid

? X ?

Hybridized By: Crown Estate Commissioners

R. 'Dulcibella Group'

Rhododendron Cultivar group

R. 'Diphole Pink' X R. facetum

Hybridized By: Rothschild, L. de

R. 'Dulcie Lelliott'

Vireya Hybrid

R. rhodoleucum X R. 'aurigeranum x Doctor Herman Sleumer'

Hybridized By: Lelliott, T.

R. dumicola

Species

Subgenus: Hymenanthes
Section: Pontica
Subsection: Taliensia

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R. 'Dumper's Yellow'

Rhododendron Hybrid

? X ?

R. 'Dumper's Yellow x Phipps Yellow'

Rhododendron Hybrid

R. 'Dumper's Yellow' X R. 'Phipps Yellow'

R. 'Dumper's Yellow x Phipps Yellow X One Thousand Butterflies'

Rhododendron Hybrid

R. 'Dumper's Yellow x Phipps Yellow' X R. 'One Thousand Butterflies'

R. 'Dunlin Group'

Rhododendron Hybrid

? X ?

Hybridized By: Rothschild, L. de

R. 'Duque de San Lucar'

Rhododendron Hybrid

R. 'Marion' X R. 'C.S. Sargent'

Hybridized By: Felix & Dijkhuis

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R. 'Durango'

Rhododendron Hybrid

R. 'Ruby Bowman' X R. elliottii 'War Paint'

Hybridized By: Goheen. Dr. David

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R. 'Durantik'

Rhododendron Hybrid

R. 'Hyperion' X R. 'Nova Zembla x Purple Splendour X Purple Splendour'

Hybridized By: Hachmann, Hans

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R. durionifolium ssp durionifolium

Species

Subgenus: Rhododendron
Section: Vireya
Subsection: Malayovireya

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R. durionifolium ssp sabahense

Species

Subgenus: Rhododendron
Section: Vireya
Subsection: Malayovireya

R. 'Duse'

Rhododendron Hybrid

? X ?

Hybridized By: Seidel, T.J.R.

R. 'Dusky Dawn'

Rhododendron Hybrid

R. 'Vibrant' X R. 'Jalisco Group'

Hybridized By: Harrison, E.G.W.W.