| ID illustration | 51110 |
| ID publication | 164 |
| ID volume | 1081 |
| code scanning institute | MBO |
| scanning institute | Missouri Botanical Garden, St. Louis, U.S.A. |
| URL volume | https://archive.org/details/mobot31753002274329 |
| ID species cited | 485803 |
| species cited | Gymnocalycium megalothelon (Sencke ex Schumann) Britton & Rose |
| ID basionym cited | 369314 |
| basionym cited | Echinocactus megalothelon Sencke ex Schumann |
| ID species recognized | 485709 |
| species recognized | Gymnocalycium denudatum (Link & Otto) Pfeiff. ex Mittler |
| ID basionym recognized | 368957 |
| basionym recognized | Echinocactus denudatus Link & Otto |
| ID genus cited | 1706 |
| genus cited | Gymnocalycium |
| ID genus recognized | 1706 |
| genus recognized | Gymnocalycium |
| Gymnocalycium denudatum (Link & Otto) Pfeiff. ex Mittler [5] | |
| Cactaceae - Cactoideae - Trichocereeae - | |
| vernacular names |
|
| Gymnocalycium Pfeiff. [44] | |
| N.L. Britton, J.N. Rose, Cact., vol. 3 : t. 18 (1922) [M.E. Eaton] [61] | |
| drawing: M.E. Eaton [953] | |
| epithet recognized species: denudatus,-a,-um [51] | |
| epithet cited species: megalothelon [1] | |
| Illustration contributed by: | Missouri Botanical Garden, St. Louis, U.S.A. |
N.L. Britton, J.N. Rose, Cact., vol. 3 : t. 18 (1922) [M.E. Eaton]