3x ID + how to correct cultivation mistakes
Hello, I hope I am choosing the right forum, apologies if I am not. I managed to identify all cacti in my tiny collection save for these 3 (used google.com exclusively.) If you can help me ID them, I would be most grateful.
Now, obviously, 1a.jpg and 2.jpg have been exposed to some cultivation mistakes that I would like to correct. 1a.jpg has developed a strange deformation at the very top of its stem (close-up available at http://vanphoto.net/hifi/kaktusy/1b.jpg) which looks like some kind of dryness. It has stayed the same since winter.
2.jpg has been like that for as long as I remember. It grows every year and overall it would be doing well was it not for the visible damage in the lower part of the plant. It was erect some 3 or 4 years ago, now it almost touches the pot.
Both plants receive the same care and love as others. If you have any ideas as to how I could end their misery and make them flourish again, please share them. If more quality close-ups are needed, I will provide them in no time.