I'm looking for Trichocereus validus (Echinopsis valida) seeds (KK 1418), and have found at http://www.cactiguide.com/cactus/?genus=Echinopsis&species=uyupampensis that it has synonym Trichocereus uyupampensis (KK 341). But now I see here it's not the same cactus: http://shaman-australis.com.au/shop/echinopsis_trichocereus_spp_cp_167.php?page=16.
I've found the best photos here: http://trichoseriousethnobotany.blogspot.de/2012/01/trichocereus-valida.html and here: http://trichoseriousethnobotany.blogspot.de/search/label/Trichocereus%20Uyupampensis%20KK%20341. They look similar. What you think?