| ID illustration | 52 |
| ID publication | 46 |
| ID volume | 108 |
| code scanning institute | MBO |
| scanning institute | Missouri Botanical Garden, St. Louis, U.S.A. |
| URL volume | https://archive.org/details/mobot31753002721386 |
| ID species cited | 655970 |
| species cited | Melocactus depressus Hook. |
| ID basionym cited | 655970 |
| basionym cited | Melocactus depressus Hook. |
| ID species recognized | 656210 |
| species recognized | Melocactus violaceus Pfeiff. |
| ID basionym recognized | 656210 |
| basionym recognized | Melocactus violaceus Pfeiff. |
| ID genus cited | 1694 |
| genus cited | Melocactus |
| ID genus recognized | 1694 |
| genus recognized | Melocactus |
| Melocactus violaceus Pfeiff. [7] | |
|   | Cactaceae - Cactoideae - Cereeae - |
| vernacular names |
|
| Melocactus Link & Otto [80] | |
| W. Curtis, Bot. Mag., vol. 65 [ser. 2, vol. 12]: t. 3691 (1839) [W.H. Fitch] [88] | |
| drawing: W.H. Fitch [6608] | |
| epithet recognized species: violaceus,-a,-um [331] | |
| epithet cited species: depressus,-a,-um [99] | |
| Illustration contributed by: | Missouri Botanical Garden, St. Louis, U.S.A. |