terraferma

Hi everyone! Here's some photos of a plant I'd like to ID. I already posted these photos on a different forum, and only got a reply from Tangich (he's also on that other forum). He said it looks like a Terscheckii to him, does everyone here agree?

This is the only photo of the wilted flowers I've got at the moment. I can take other photos if you want.

Normally I collect my seeds when the fruit bursts open, but this fruit was accidentally ripped from of the plant before it was ripe. I opened it and it does contain seeds, and they are the normal seed size, although there are less of them (the skin part of the fruit is much thicker than when a fruit is ripe). If I plant them, will they give birth to seedlings as if they had come from a fully-matured fruit?

Thanks! It comes from one of the Bridgesii with knobby ribs (or Cuzcoensis) that I posted photos of a couple of weeks ago.

Does anyone have a clue what this plant could be? Bridgesii possibly?... but it looks different from others I've seen.

I don't think they are the same. The plant of this thread has these knobby ribs all over. There is another identical plant planted next to it (the two aren't connected) and it also has these knobby ribs all over (from top to bottom). On the other hand, the plant of my other thread (Peruvianus/ Cuzcoensis) doesn't have knobby ribs (the ribs in some areas of the plant are even perfectly straight). There are 2 or 3 other separate identical plants next it it, and none of them have knobby ribs either. Thanks to you all for your help!

Hi guys, this is my first post. Can you help me ID this cactus?

Thanks for the info guys, much appreciated! @eg: Yes I will definitely breed with that one!