pachs and peruvians ( ID

[telepathine]

hi growers

i grow a few cacti which i would like to make sure are the ones they were sold to me. i hope you'll enjoy the pics.

For example this one should be t. peruvianus:
http://iiii.eu.org/iiii.eu.org/_link/cact/c1.jpg
http://iiii.eu.org/iiii.eu.org/_link/cact/c2.jpg

however when i compare it to these two peruvian species to the left, they look to be quite different: (the middle one has been growing four sided ... but the whole pot droped me once and the tops broke off)
http://iiii.eu.org/iiii.eu.org/_link/cact/c3.jpg

the guy to the right was t.pach and here again similar one:
http://iiii.eu.org/iiii.eu.org/_link/cact/c4.jpg

finally some group photo of the base:
http://iiii.eu.org/iiii.eu.org/_link/cact/c5.jpg

[winder]

the first two cacti are Cereus peruvianus, not Trichcereus peruvianus.

A common newbie mistake, often caused by mislabeling by the vendors.

[Cassie]

Yep, Winder is right about that. The pics are a very clear example of how to tell the difference between cereus and trichocereus.  One can see quite clearly how the cereus has narrow ribs while the trichocereus ribs are broader and nowhere near as indented.
Lovely pics, thanks and welcome to spiritplants.
 

[telepathine]

thanks for answers
i saw this one was different, i just thought it is some other variety...well, i still like it anyways.... it grows 2-3 times faster then the trichs which is astonishing

[visionarybear]

in the phot of the base, the 3rd cactus from the right almost looks like it could be Pilocereus glaucans... not sure which top matches up to it tho.. jus an observation, it would have fuller ribs further up the column if it was, more similar to the trichs than the cereus if i remember correctly

all the fuller fleshy ribs look to be T. pachanoi as you thought...

look like some nice cactus tho.