Jon- Although I am no expert on Zantedeschia the only forms that I am aware of for Z.aethiopica are white and a pale pink called 'Marshmallow'. There are also two Dutch introductions 'Pink Mist' and 'Red Desire' which I know of only from photos that are also varying shades of pink with a colored spadix. I suspect that they are similar and not very different than 'Marshmallow'. My plants of Z. odorata have a cream/white spathe - but i wouldn't call it yellow. I have never seen a true yellow Z.aethiopica and all the yellows come from Z.elliottiana (recognizable by the black blotch in the throat) or hybrids created through years of breeding. Calla breeding has come quite a ways with flowers now available in the full spectrum - with some even having blue tones visible in the flowers. Marc New Jersey USA >>Message: 3 >Date: Tue, 19 Oct 2010 19:24:28 -1000 >From: Jon Suzuki <jysuzuki@gmail.com> >To: pbs@lists.ibiblio.org >Subject: [pbs] Zantedeschia aethiopia >Message-ID: > <AANLkTi=7ag3HyaOHZyg_EygNVTKfD4iUMr=BAn17B4f8@mail.gmail.com> >Content-Type: text/plain; charset=ISO-8859-1 > >Hi, > >I wonder if anyone knows of a yellow form of Z. aethiopia (calla lily). > >I want a yellow and white form of the same species > >Thank you very much > >Jon >