Rhododendron coeloneurum
Rhododendron coeloneurum (coeloneuron)
R. coeloneurum. Foto: Garth Wedemire RSBG
R. coeloneurum NN0926. Foto: Hans Eiberg
R. coeloneurum. Foto: Jens Nielsen
R. coeloneurum. Foto: Jens Nielsen
R. coeloneurum. Foto: Jens Nielsen
R. coeloneurum. Foto: Jens Nielsen
R. coeloneurum NN0926. Nice foliage and seems closely related to R. denudatum.
This population was mostly growning in boggy condition near a stream. NE Yunnan 1800 m: ARS 678/2010
Jens Nielsen
R. coeloneurum new growth. Foto: Hans Eiberg
R. coeloneurum nyvækst. Foto: Hans Eiberg
R. coeloneurum 0362 hos Arboretet Hørsholm, indument (marts). Foto: Hans Eiberg
R. coeloneurum hos HE, blomstknop. Foto: Hans Eiberg
R. coeloneurum 0362 i Arboretet Hørsholm, blomstknop. Foto: Hans Eiberg
R. coeloneurum hos SHH. Blomsterstilk. Foto: Hans Eiberg
R. coeloneurum hos SHH. Håret indre kronrør. Foto: Hans Eiberg
R. coeloneurum hos SHH, ovarie, støvdragere, griffel. Foto: Hans Eiberg
R. coeloneurum, ovarie, støvdragere, griffel (taget af frosten). Foto: Hans Eiberg
R. coeloneurum, stamme. Foto: Hans Eiberg
R. coeleneuron seeds. Foto Hans Eiberg
R. coeloneurum/(R. coeloneuron) (Argyrophylla) En form der ligger imellem R. floribundum, R. wiltonii, R. denudatum og R. rufum.
Kendetegn:
Tidligere introducerede planter med dette navn har været R. wiltonii (WEB). Allan Clark's introduktioner er planter
i Argyrophylla subsektionen. Vildtvoksende i Sichuan, N-Yunnan og N-Guizhou, Kina
Hvis blomsterklasen er tæt og ikke løs er det en Taliensa og ikke Argyrophylla. R. coeleunerum har en mat bladplade og brunt indument, medens arter i Argyrophylla
har tæt hvidt (eller pudret) til blankt (agglutineret) lysebrunt indument.
H.Eiberg
ARS
Flora of China
RBGE herbarium. R. coeloneuron
R. coeloneuron (um) is definitely an Argyrophylla and not a Taliensia in my opinion (most agree). The closely related,
similar and also recently introduced denudatum has a flatter leaf with a paler indumentum but darker flowers a bit
later in the season. This latter species is closest to floribundum which has a more northerly distribution, a paler
indumentum and darker flowers than denudatum. These would all be better compared to argyrophyllum and not insigne which
is quite different from most of the other species in that subsection. The original “coeloneuron” that was introduced by
Berg and others was a collection from the Erlang Shan in Sichuan in the early 1990s. This is nothing more than a very
fine form of wiltonii (as was obvious in Harold’s image) but was mistakenly distributed for many years as coeloneuron.
It is a bit different from the Omei Shan form of wiltonii which is the form most often seen in cultivation. The Erlang Shan
form is by far the superior plant, we now have about 20 planted in a new section of the garden here at the RSBG, all
different clones from wc seed. Beautiful!
Steve Hootman Youtube
Steve Hootman
R. coeleneuron seeds. Foto Hans Eiberg