Random cacti

[Spikylover]

Hello everyone. Could you please help me identify some random cacti?
The first one is a 3-4" mammillaria that had a violet flower in the middle not on the top. Mammillatia elongata pink nymph?
Second are gymno seedlings. Not sure which. Very interesting spines. Maybe comarapense?
3 and 4 are essentially the same except that one is very green and the other is dark green and blue on new growth. I think they are pilosocereus.
The bowl i think is rebutia pulvinosa.
Thank you

[Cactus John]

Number one looks like Mammillaria microhelia.

[Spikylover]

Number one looks like Mammillaria microhelia.

I was hoping it was the "pink nymph" since there are aome similarities. Mammillarias are so confisuing
Thanks for your reply john

[Cactus John]

The thing I like about this site is that I am always learning something new.
Following up on your reply, l did a bit more research and found the following information.
Mammillaria elongata 'Pink Nymph' is a hybrid of M. elongata and M. microhelia so you may still get what you were hoping for.
As you say, there is a lot of confusion when it comes to naming cacti and hybridising doesn't help when trying to put a name to a picture either.

[Spikylover]

The thing I like about this site is that I am always learning something new.
Following up on your reply, l did a bit more research and found the following information.
Mammillaria elongata 'Pink Nymph' is a hybrid of M. elongata and M. microhelia so you may still get what you were hoping for.
As you say, there is a lot of confusion when it comes to naming cacti and hybridising doesn't help when trying to put a name to a picture either.

Wow john thanks! Now that that's confirmed i might buy another one to help start a clump.
Any ideas about the other ones?

[Tofterigen]

Hi Spikylover
The columnars are Trichocereus for certain. Do not ask for the species...! The Picture "20170624_230030" is beautiful! 8 ribs for such a young plant is very good. The depth of field is just what is needed! Nice symmetry!

Best whishes,

Tofterigen

[Spikylover]

Hi Spikylover
The columnars are Trichocereus for certain. Do not ask for the species...! The Picture "20170624_230030" is beautiful! 8 ribs for such a young plant is very good. The depth of field is just what is needed! Nice symmetry!

Best whishes,

Tofterigen

That's amazing! I always thought they are pilosocereus and i accepted that. Trichocereus are much more exciting!
Thanks tofterigen.

[Spikylover]

The columnars are Trichocereus for certain.

I don't know they still look like pilosocereus pachycladus to me

[Spikylover]

So nothing on the others?

[Tofterigen]

Hi Spikylover
Excuse me please! I suffered from mental derangement! Of course, this is Pilosocereus, probably pachycladus! Just give it some more time and sun and it will grow to an impressive plant. You can offer it ideal conditions, compared to my poor windowsill-plant in cold dark Germany!

apologizing,

Tofterigen

[Spikylover]

Hi Spikylover
Excuse me please! I suffered from mental derangement! Of course, this is Pilosocereus, probably pachycladus! Just give it some more time and sun and it will grow to an impressive plant. You can offer it ideal conditions, compared to my poor windowsill-plant in cold dark Germany!

apologizing,

Tofterigen

You messed with my head quite hard!
Thanks Tofterigen!

Cheers

Rachel