Re: H plantaginea Japonica is not a hybrid
- Subject: Re: H plantaginea Japonica is not a hybrid
- From: W* G* S*
- Date: Thu, 16 May 2002 12:07:23 -0400
Hi Ben, All,
Maekawa (1940) clearly indicates that the anthers of H. plantaginea var.
japonica (prior to dehiscing) have purple margins, so are not pure yellow as
Ben has stated (Maekawa: "... antheris lutescentibus margine
pupurascentibus..."). Further, I have seen purple dotting in some specimens.
Where did that purple come from (hybridization?)? H. plantaginea var.
plantagines has pure yellow anthers (Maekawa: ... antherae flavae ...).
Please explain.
WGS
----- Original Message -----
From: "zonneveld" <zonneveld@rulbim.leidenuniv.nl>
To: <hosta-open@hort.net>
Sent: Thursday, May 16, 2002 6:54 AM
Subject: H plantaginea Japonica is not a hybrid
> George Schmid gives a full account of the story of Hosta
> Plantaginea 'Japonica' I dont however agree with his conclusion. It
> is not a hybrid but just a slightly different clone of the species for
> the following reasons Any hybrid with another species should have
> left at least some signs First the DNA is identical to the H
> plantaginea proper Second there is no difference in the flower not a
> trace of colour Further the anthers are pure yellow Lastly, it indeed
> has a lower pollen and egg fertility ( about 60 %) This due not to
> hybridity but to the fact that it has been vegatively propagated for
> several centuries. For more details see my article on the DNA and
> pollen of all species of Hosta
> Ben J.M.Zonneveld
> Clusius lab pobox 9505
> 2300 RA Leiden
> The Netherlands
> mintemp-16C(5F)
> Zonneveld@RULbim.LeidenUniv.NL
> Fax: 31-71-5274999
>
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