If you have bought peony seeds from Will Mc Lewin in the earlier years, you will see his seed list is seperated into numbers – theese numbers refers to
1. 1 . 1 – if the seed is wild collected ( numbers 1. – and then number for collected place – futher number for other collections of places in the same area, or sub species of the species )
3 .1.1 – hybrids of the peony herbacaous species
4.1.1 – tree peony species
Here the 4.23.2 – is a hybrid tree peony seed plant from open pollinated tree peonies !
peonyrainbows 
Hello, I’m also a peony collector. Do you happen to have pictures of your seedlings with the leaves?
Many of my seeds from many species of peonies are germinating now in prepartion to sprout next spring.
Hi Steve
Yes i have more pictures of the sprouted peony seeds – been busy so have not updated yet.
You can also mail me on : regnbuepaeon@hotmail.com
Also i will look at you blog, and maybe comment on some – it looks good !
Luriel
Hi Steve yes i some more than on the blog, has to update it, is there some you are specialy intersted in so i can post them first