I'm very interested in the concept of growing houseplants from seed. There doesn't seem to be much information that is easy to find about it, however. So, I plan to put information I discovered in this thread.
I've read that these can be grown from seed:
• Adromischus cristatus
(Crinkle Leaf Plant or Key Lime Pie Plant)
• Codariocalyx motorius
• Fatsia japonica
• Hedera helix (English ivy)
• Hypoestes phyllostachys
(Pink Polka Dot Plant)
• Monstera deliciosa
• Philodendron sellous
(Philodendron Hope): I believe they meant Selloum (Thaumatophyllum bipinnatifidum), which isn't a Philodendron anymore.
I've personally saved and sprouted a seed of Chlorophytum comosum before. The seedling was small and slow-growing, but recognizably a spider plant. It didn't survive beyond the seedling stage. I'm guessing some extra phosphorus and potassium and/or humidity could have saved it.