| Cactaceae | |
Gymnanthocereus altissimus
| F. Ritter | Cactus (Paris) 14(62): 119 | 1959 |
| Cactaceae | |
Gymnanthocereus chlorocarpus
| (Kunth) Backeb. | Blätt. Kakteenf. | 1937 |
| Cactaceae | |
Gymnanthocereus macracanthus
| F. Ritter | Kakteen Südamer. 1317 | 1981 |
| Cactaceae | |
Gymnanthocereus microspermus
| (Werderm. & Backeb.) Backeb. | Blätt. Kakteenf. 1938(1): [4], genus 43a, sp. 2, f. | 1938 |
| Cactaceae | |
Gymnanthocereus pilleifer
| F. Ritter | Succulenta (Netherlands) 46(2): 24 | 1967 |