Klassifikation

• Subgenus Azaleastrum (clade C*)
  • Section Azaleastrum In Flora of China
  • Section Choniastrum
  • Section Sciadorhodion
    • Subsection Candidastrum (HE)
    • Subsection Schlippenbachia (J. Batta 1980) HE
    • Subsection Vaseya (HE)
    • Subsection Nipponica (J. Batta 1980) HE  til Tsutsusi
• Subgenus Tsutsusi
  • Section Tsutsusi
    • Subsection Brachycalyces (Spethmann 1987) HE
    • Subsection Mumeazalea (M.N.Philipson & Philipson 1982) HE
    • Subsection Tsutsusi In Flora of China* HE
• Subgenus Hymenanthes
  • Section Pentanthera
    • Subsection Canadensia (J. Batta 1980, Spethmann 1987) HE
    • Subsection Lutea (J. Batta 1980, Spethmann 1987) HE
    • Subsection Sinensia (K.A. Kron 1993) HE
  • Section Pontica
    • Subsection Arborea
    • Subsection Argyrophylla
    • Subsection Auriculata (monotypic)
    • Subsection Barbata
    • Subsection Campanulata
    • Subsection Campylocarpa
    • Subsection Falconera
    • Subsection Fortunea
    • Subsection Fulgensia (monotypic)
    • Subsection Fulva (2 species)
    • Subsection Glischra
    • Subsection Grandia
    • Subsection Griersoniana (monotypic)
    • Subsection Irrorata
    • Subsection Lanata
    • Subsection Maculifera
    • Subsection Neriiflora
    • Subsection Parishia
    • Subsection Pontica
    • Subsection Selensia
    • Subsection Taliensia
    • Subsection Thomsonia
    • Subsection Venatora (monotypic) -> Parishia
    • Subsection Williamsiana (monotypic)
• Subgenus Rhododendron
  • Section Pogonanthum
  • Section Rhododendron
    • Subsection Afghanica (monotypic)
    • Subsection Baileya (monotypic)
    • Subsection Boothia
    • Subsection Camelliiflora (monotypic)
    • Subsection Campylogyna (monotypic)
    • Subsection Caroliniana (monotypic)
    • Subsection Cinnabarina
    • Subsection Edgeworthia
    • Subsection Fragariflora (monotypic)
    • Subsection Genestieriana (monotypic)
    • Subsection Glauca
    • Subsection Heliolepida
    • Subsection Lapponica
    • Subsection Ledum
    • Subsection Lepidota
    • Subsection Maddenia
    • Subsection Micrantha (monotypic)
    • Subsection Monantha
    • Subsection Moupinensia
    • Subsection Rhododendron
    • Subsection Saluenensia
    • Subsection Tephropepla
    • Subsection Triflora
    • Subsection Uniflora
• Subgenus Pseudazalea (Trichoclada)
• Subgenus Pseudorhodorastrum
  • Section. Rhabdorhodion (virgatum)
  • Section. Rhodobotrys 
  • Section Trachyrhodion
• Subgenus Rhodorastrum (dauricum)
• Subgenus Rhododendron
  • Section Schistanthe (Vireya) – not on this website.
  • Pseudovireya and Euvireya (all the other groups)
    • Subsection Albovireya
    • Subsection Discovireya
    • Subsection Malayovireya
    • Subsection Phaeovireya
    • Subsection Pseudovireya
    • Subsection Siphonovireya
    • Subsection Solenovireya
    • Subsection Vireya
• Subgenus Therorhodion (probably not in this genus Hans Eiberg 1998)

Genus Rhododendron

Example of a phylogenetic tree using ITS and matK variations.

ITS do not have important sequences. RPB2-I and ITS have more gaps and therefore difficult to work with. No gaps in matK coding area. RPB2-I sequence exon 23-24 gave a lot of “noise” using some programes, mostly from parts of exon 23 and 24 if exons is not cut out.

Kron 1996 used matk on 14 species Mensezia belongs to Genus Rhododendron.

Hans Eiberg – Rhododendronfamiliens stamtræ
In: Rhododendron i Danmark i 25 år. Nielsen BL, Hansen SM. (1999). p.186-206. RhodoNyt 1997 (1): p 14-18.
Taxonomi
Mensezia belongs to Genus Rhododendron, R. vaseyi is close to R. albrechti and R. canadense to Pentantera Used 29 species om matk and ITS.

Kurashie Y, et al. 2001: Sectional relationships in the genus Rhododendron (Ericaceae): Evidence from matK and trnK intron sequences), Plant Systematics and Evolution 228 (1-2). Used 267 species

Goetsch et al. 2005 classification used mostly non-coding sequencies in RPB2-I. Exon areas is cut out before use (B. Hall 2007). Goetsch et al. data are very informative and the largest to day and the “noise” give only minor problems? At the moment the Menziesia group is in this Genus. R. camtchaticum is a matter of feelings.

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Historisk udgave – klassifikationsoversigt 1996

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My version 1/4-2007 Hans Eiberg – Mange har nu fået et gruppenavn (sec./subsec.) i Flora of China ** kommentarer. Flora of China’s klassifikation er delvist bygget på DNA analyser.

(Subgenus Menziesia (HE) (If Therorhodion is in this genus, then Menziesia is also (HE, 1997) – also after DNA studies of several DNA regions)

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Bestemmelsesnøgler – kræver login

Subgenus
Azaleastrum
Pseudoazalea (Tricoclada)Tsutsusi
Brachycalyx
Choniastrum
Hymenanthes
Arborea
Argyrophylla
R. auriculatum
Barbata
Campanulata
Campylocarpa
Falconera
Fortunea
R. fulvum
Glischra
Grandia
R. griersonianum
Irrorata
Lanata
Maculifera
Neriiflora
Parishia
Pontica
Selensia
Talensia
Thomsonia
R. williamsianum

Pentanthera
Sciadorhodion, Candidastrum, Mumeazalea mm.

Rhododendron
Pogonanthum
R. afghanicum
Campylogyna
Caroliniana
Cinnabarina
Fragariiflora
Glauca
Heliolepida
Lapponica
Ledum
Lepidota (ingen DK nøgle her)
Maddenia
Moupiensia
Rhododendron
Saluenensia
Scabrifolia (ingen DK nøgle her)
Tephropepla
Triflora
Uniflora

Pseudorhodorastrum
Rhodorastrum
Therorhodion