Species list
Thelocactus is a small genus with few species, but the names referable to it are many, as is the case with most of the cactus genera. The taxa I recognize are underlined. The synonyms are normal typed, the taxa to which they are referable being on their right.
| argenteus | ||
| aurantiacus | ||
| bicolor | ||
| bolaensis | ||
| buekii | ||
| commodus | see | bicolor |
| conothelos | ||
| crassior | see | leucacanthus |
| decipiens | see | hexaedrophorus |
| droegeanus | see | hexaedrophorus |
| ehrenbergii | see | leucacanthus |
| ellipticus | see | bicolor |
| flavidispinus | ||
| flavus | ||
| fossulatus | see | hexaedrophorus |
| franci | see | hexaedrophorus |
| freudenbergeri | ||
| garciae | ||
| hastifer | ||
| heterochromus | ||
| hexaedrophorus | ||
| hintonii | ||
| huizachensis | see | tulensis |
| icamolensis | see | rinconensis |
| jarmilae | see | buekii |
| jarmilae | see | hexaedrophorus |
| krainzianus | see | schmollii |
| kupcaki | see | tulensis |
| kvetae | see | hexaedrophorus |
| labouretianus | see | leucacanthus |
| lausseri | ||
| leucacanthus | ||
| lloydii | see | hexaedrophorus |
| lophothele | see | rinconensis |
| macdowellii | ||
| maelenii | see | leucacanthus |
| major | see | hexaedrophorus |
| matudae | see | buekii |
| multicephalus | ||
| nidulans | ||
| palomaensis | see | nidulans |
| panarottoanus | see | flavus |
| phymatothelos | see | rinconensis |
| porrectus | see | leucacanthus |
| pottsii | see | heterochromus |
| rhodophthalmus | see | bicolor |
| rinconadensis | see | rinconensis |
| rinconensis | ||
| roseus | see | hexaedrophorus |
| sanchezmejoradai | see | schmollii |
| santaclarensis | see | buekii |
| saussieri | see | conothelos |
| schmollii | ||
| schottii | see | bicolor |
| schwarzii | ||
| smithii | see | conothelos |
| sniceri | see | macdowellii |
| subcostatus | see | leucacanthus |
| subporrectus | see | leucacanthus |
| tepelmemensis | ||
| texensis | see | bicolor |
| theloideus | see | leucacanthus |
| tuberosus | see | leucacanthus |
| tulensis | ||
| vaskoanus | see | tulensis |
| wagnerianus | see | bolaensis |
| zwaki | see | bicolor |
