Re Temp. Ping ID and P.leptoceras X P.alpina

From: Loyd Wix (Loyd.Wix@unilever.com)
Date: Wed Jul 30 1997 - 05:31:12 PDT

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Date: 30 Jul 1997 13:31:12 +0100
From: Loyd Wix <Loyd.Wix@unilever.com>
To: cp@opus.hpl.hp.com
Message-Id: <aabcdefg2866$foo@default>
Subject: Re Temp. Ping ID and P.leptoceras X P.alpina

          Dear Gilles,

          I have seen similar flowers in cultivation with P.vulgaris
          and also this year in a pale flowered form of P.leptoceras
          (lower petal almost all white) similar to the one you
          describe. I have a photograph of the latter and will send
          you a scanned copy in the next day or so as time allows.

          In my experience flower abnormalities in cultivation are far
          more common in Mexican Pings than temperate ones.

          Dear Juerg,

>At common sites P. leptoceras (2n=32) hybridizes with P.
>vulgaris (2n=64). Although it frequently occurs together
>with P. alpina (2n=32), hybrids with the latter one were
>never seen.

          Hans Luhrs (the Dutch Ping fanatic) located such a hybrid
          (P.leptoceras X P.alpina) in Italy in 1996 (I think). I do
          not know precise location details however.

          Regards

          Loyd

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