can't seem to get this to work this time

you mob have been so helpfull, so thanks to all. here are a few more I need ID on, can you help?
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thanks folks

thanks greenknight much appreciated

I moved to a retirement unit about five years ago where there was no room to put the hot house so sold off my collection. I have kept looking occasionally at this forum and finally gave in and bought a cactus that I really thought would die on me, but to my surprise it thrived, so I bought another a...

picked these up at a garage sale. anyone know what they are

thanks for that greenknight. knew the first 2 were mams, but was just hoping to get a species name. had know idea what the last one was

thanks guys

[attachment=1]008.JPG[/attachment][attachment=2]004.JPG[/attachment][attachment=3]005.JPG[/attachment]don't know if this will work, but trying to post more than one request at time. hope I've got it right

no idea what this one is, but strewth it's nice

thanks cactus man. have a few more needing I.D but have to get some photos first

I am not sure if this is a mammalaria or not. would appreciate so help

thanks cobber, I've now got an idea of what they may be. it can be very frustrating when you buy a cactus labelled "cactus". i always want to say " are you sure".lol

I have 3 cactus labeled as ferocactus but no species name. can anyone help

lol; harriet please don't do things like that, I have one that looks identical & thought you beauty, & copied down the name, then sat & looked at it & nearly spilt my cuppa over the keyboard