Last fall I collected some jack-in-the-pulpit seeds out in the woods behind where I work. The directions that I found (on the internet, naturally) for propagating them said to clean the pulp from them and store in a ziplock bag with damp vermiculite in a refrigerator for a few months before planting. The cold storage (it’s called stratification, I don’t know why) time was done perhaps six weeks ago and the seedlings are finally up enough to photograph.
Not impressive yet, but they have germinated.