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 Subsection Ledum

Subsection Ledum


English
Til - Genus Subsektion Ledum
R. columbianum, Photo H. Eiberg
R. columbianum
R. diversipilosum ssp. diversipilotum, Foto: Hans Eiberg
R. diversipilosum
R. groenlandicum, Foto: H. Helm
R. groenlandicum
R. hypoleucum, Foto: Kristian Theqvist
R. hypoleucum
R. neoglandulosum. Foto: Hans Eiberg
R. neoglandulosum
R. subarcticum. Photo: Hans Eiberg
R. subarcticum
R. subulatum. Photo: Konstatin Cherezov
R. subulatum
R. tolmachevii. Photo: H. Helm
R. tolmachevii
R. tomentosum. Photo: K. Theqvist
R. tomentosum

= On the red list
= Not on the red list -- updating 



         Subsection Ledum
 
                       R. diversipilosum (Nakai) Harmaja, 1999.	(3N/4N)             
                       R. groenlandicum (Oeder) Kron & Judd, 1990. (3N/4N)
                       R. hypoleucum (Kom.) Harmaja, 1990.	(3N/4N)
                       R. neoglandulosum  Harmaja, 1990. 	(3N/4N)
                       R. subarcticum  Harmaja, 1990	    (2N / 3N)
                       R. subulatum (Nakai) Harmaja, 2002. 
                       R. tolmachevii Harmaja, 1990. 
                       R. tomentosum  Harmaja, 1990	(3N/4N)

		       R. columbianum (Piper) Harmaja, 1990. (2N)  This species is diploid, so it is probably a species and not a hybrid.

        


DNA conncentration (ploidy N) by Joćo Loureiro, Portugal	

Rhododendron columbianum is indeed a diploid species

Robert MacIntyre provided us another sample of Rhododendron columbianum. It appears that Rhododendron columbianum is indeed a 
diploid species and is the not a hybrid of the other 2 western ledums that both tested as tetraploid. John Perkins




 Ledum Taxonomy  Kristian Theqvist