Zoomie
Songster
That is so cool you are "planting" mushrooms! Good luck with that! I think it's a great idea and I wish we could do that here - but hard wood logs are in short supply here. I have seen Pleurutus growing on things like apple trees, and I did see some on a Ponderosa log, but I don't think that is typical!
Your first photos *might* be Pleurutus but the caps don't look quite right... the cracking and so on, well, it makes me suspect Pholiota. The gills also don't seem quite right for Pleurutus. The second batch? Hard to say. You will discover that you really need to see the underside, or spore bearing surface, to really know, and then things like spore color, does it have a stem or not, is it hollow or solid and what does it smell like also can help out. You are right though - they are definitely past their prime!! Yikes!