Jelitto Seeds has them. I have to add, that their lifespan is not particularly long for me. After 5-6 years they are usually all gone(unless something has eaten the roots?)

Thanks for the info. I went to the site and found it to be not user-friendly. I couldn't understand the amounts - grams or portions? and the price was in euros and the minimum order was 25 euros. sigh....

I agree with you that it is not user friendly, it took me a while to find the plants. One gram costs 6,8 euro, and one portion 3,4 euro. One portion is enough for 50-100 plants(if you keep your 'arrow' over the signs it will show what the signs means. I think you can pay in dollars, as they have their office in US(It will be approximately the same amount, a little more in dollars).

There is also a firm called B and T World Seeds, they are more expensive, but not minimum order as far as I know.