This interview has been made in honour to the 80th birthday of Lajos Nemes, dr. univ., which for the Hungarian Cactus Society also congratulates. Lajos Nemes saw a cactus collection for the first time as university student in the first year: the cactus collections of József Gál, Gyál, and József Aranyi, Pécel, Hungary. That time a Mammillaria bocasana costed 3 HUF. He accommodated during his school years in a students' hostel, thus he kept his first plants in the window of the six-bed room. After graduating he got a job at the Botanical Garden of the former Kossuth Lajos University, Debrecen, Hungary where he was responsible for cacti and other succulent plants. That time the succulent plant collection consisted of only a few specimens from the genera Agave, Aloë and Echinopsis. Through many difficulties the collection became significant by the time of 1971-1972. The interest of Lajos Nemes turned to the genus Lobivia soon. That time there were some collections on the genera Parodia, Rebutia, Mammillaria and Ariocarpus, but there was no collection of the nice-flowered Lobivias. As the new director of the Botanical Garden, he published the first and illegal magazine on cacti entitled Kaktuszkedvelők Lapja in 100 issues. That action was completely illegal thus got no respect from that time officers. Lajos Nemes keeps himself a lucky man who can work on his beloved plant through his life.