I too had a very nice email from Jack (whom I called Will and have had to send a second reply, apologising), about the little viola I posted on the Nov in the Southern Hemisphere thread. This has been around in NZ for a few years as Viola albanica but isn't. (Jack confirmed, as did Gerd K) and I thought it could be V. cornuta 'Minor' as it is VERY minor and has the typical horn at the back as well as being the same shape as my V. cornuta 'Alba.' Gerd says it could be a hybrid of cornuta 'Minor' with somthing else and Jack isn't sure but will ask around. Whatever, it is a little darling the pad of foliage just 1cm high and the flower stems about 2cms. It had a single seed pod a few years ago but nothing germinated and no pods since. I'd be very interested in others' opinions please. Someone must know what it is. Otherwise, I'll start calling it V. cornuta 'Minutissima.'
I may be mis-remembering but I think a Christchurch person brought it in as seed some years ago from Halda or someone like that, as V. albanica.