| Echinofossulocactus acroacanthus (Stieber) G.D.Rowley |
Unresolved |
 |
WCSP (in review) |
| Echinofossulocactus albatus (A.Dietr.) Britton & Rose |
Unresolved |
 |
WCSP (in review) |
| Echinofossulocactus anfractuosus (Mart. ex Pfeiff.) Lawr. |
Unresolved |
 |
WCSP (in review) |
| Echinofossulocactus angustispinus W.E.Lawr. [Unplaced] |
Unresolved |
 |
WCSP (in review) |
| Echinofossulocactus arrigens (Link ex A.Dietr.) Britton & Rose |
Unresolved |
 |
WCSP (in review) |
| Echinofossulocactus arrigens f. xiphacanthus (Miq.) Krainz |
Synonym |
 |
TRO |
| Echinofossulocactus boedekerianus (A.Berger) Croizat |
Unresolved |
 |
WCSP (in review) |
| Echinofossulocactus boedekerianus f. ochoterenanus (Tiegel) P.V.Heath |
Unresolved |
 |
WCSP (in review) |
| Echinofossulocactus boedekerianus f. ochoterenianus (Tiegel) P.V. Heath |
Synonym |
 |
TRO |
| Echinofossulocactus bustamantei (Bravo) Croizat |
Unresolved |
 |
WCSP (in review) |
| Echinofossulocactus caespitosus Backeb. |
Unresolved |
 |
WCSP (in review) |
| Echinofossulocactus campylacanthus Lawr. |
Synonym |
 |
WCSP (in review) |
| Echinofossulocactus confusus Britton & Rose |
Unresolved |
 |
WCSP (in review) |
| Echinofossulocactus confusus (Britton & Rose) P.V. Heath |
Accepted |
 |
TRO |
| Echinofossulocactus coptonogonus (Lem.) Lawr. |
Unresolved |
 |
WCSP (in review) |
| Echinofossulocactus cornigerus Lawr. |
Synonym |
 |
WCSP (in review) |
| Echinofossulocactus crispatus (DC.) Lawr. |
Unresolved |
 |
WCSP (in review) |
| Echinofossulocactus crispatus f. acroacanthus (Stieber) P.V.Heath |
Unresolved |
 |
WCSP (in review) |
| Echinofossulocactus crispatus f. arrigens (Link) P.V. Heath |
Synonym |
 |
TRO |
| Echinofossulocactus crispatus f. confusus (Britton & Rose) P.V.Heath |
Unresolved |
 |
WCSP (in review) |
| Echinofossulocactus crispatus f. dichroacanthus (Mart.) P.V. Heath |
Synonym |
 |
TRO |
| Echinofossulocactus crispatus f. ensiferus (Lem.) P.V.Heath |
Unresolved |
 |
WCSP (in review) |
| Echinofossulocactus crispatus f. flexispinus (Bravo) P.V.Heath |
Unresolved |
 |
WCSP (in review) |
| Echinofossulocactus crispatus f. grandicornis (Lem.) P.V.Heath |
Unresolved |
 |
WCSP (in review) |
| Echinofossulocactus crispatus f. guerraianus (Backeb.) P.V.Heath |
Unresolved |
 |
WCSP (in review) |
| Echinofossulocactus crispatus f. heteracanthus (Muehlenpf.) P.V.Heath |
Unresolved |
 |
WCSP (in review) |
| Echinofossulocactus crispatus f. kellerianus (Krainz) P.V.Heath |
Unresolved |
 |
WCSP (in review) |
| Echinofossulocactus crispatus f. lamellosus (A.Dietr.) P.V.Heath |
Unresolved |
 |
WCSP (in review) |
| Echinofossulocactus crispatus f. lancifer (A.Dietr.) P.V.Heath |
Unresolved |
 |
WCSP (in review) |
| Echinofossulocactus crispatus f. obvallatus (DC.) P.V.Heath |
Unresolved |
 |
WCSP (in review) |
| Echinofossulocactus crispatus f. pentacanthus (Lem.) P.V.Heath |
Unresolved |
 |
WCSP (in review) |
| Echinofossulocactus crispatus f. tellii (A.Berger) P.V.Heath |
Unresolved |
 |
WCSP (in review) |
| Echinofossulocactus crispatus f. undulatus (A.Dietr.) P.V.Heath |
Unresolved |
 |
WCSP (in review) |
| Echinofossulocactus crispatus f. violaciflorus (Quehl) P.V.Heath |
Unresolved |
 |
WCSP (in review) |
| Echinofossulocactus densispinus Schmoll |
Unresolved |
 |
WCSP (in review) |
| Echinofossulocactus densispinus Tiegel ex Pechanek |
Unresolved |
 |
WCSP (in review) |
| Echinofossulocactus densispinus Pechanek |
Synonym |
 |
TRO |
| Echinofossulocactus dichroacanthus (Mart. ex Pfeiff.) Britton & Rose |
Unresolved |
 |
WCSP (in review) |
| Echinofossulocactus echidne (DC.) Lawr. |
Synonym |
 |
WCSP (in review) |
| Echinofossulocactus elatior Lawr. [Unplaced] |
Unresolved |
 |
WCSP (in review) |
| Echinofossulocactus ensiformis Lawr. [Unplaced] |
Unresolved |
 |
WCSP (in review) |
| Echinofossulocactus erectocentrus (Coult.) Backeb. |
Unresolved |
 |
WCSP (in review) |
| Echinofossulocactus flexispinus Bravo |
Unresolved |
 |
WCSP (in review) |
| Echinofossulocactus gladiatus (Link & Otto) Lawr. |
Unresolved |
 |
WCSP (in review) |
| Echinofossulocactus grandicornis (Lem.) Britton & Rose |
Unresolved |
 |
WCSP (in review) |
| Echinofossulocactus guerraianus Backeb. |
Unresolved |
 |
WCSP (in review) |
| Echinofossulocactus harrisii Lawr. [Unplaced] |
Unresolved |
 |
WCSP (in review) |
| Echinofossulocactus hastatus (Hopffer ex K.Schum.) Britton & Rose |
Unresolved |
 |
WCSP (in review) |
| Echinofossulocactus helophora Lawr. |
Unresolved |
 |
TRO |
| Echinofossulocactus helophorus (Lem.) Lawr. |
Synonym |
 |
WCSP (in review) |
| Echinofossulocactus heteracanthus (Muehlenpf.) Britton & Rose |
Unresolved |
 |
WCSP (in review) |
| Echinofossulocactus hexaedrophorus (Lem.) Lawr. |
Unresolved |
 |
WCSP (in review) |
| Echinofossulocactus holopterus (Miq. ex Salm-Dyck) Lawr. |
Synonym |
 |
WCSP (in review) |
| Echinofossulocactus ignotus-venosus Lawr. [Unplaced] |
Unresolved |
 |
WCSP (in review) |
| Echinofossulocactus karwinskianus Lawr. |
Synonym |
 |
WCSP (in review) |
| Echinofossulocactus kellerianus Krainz |
Unresolved |
 |
WCSP (in review) |
| Echinofossulocactus lamellosus (A.Dietr.) Britton & Rose |
Unresolved |
 |
WCSP (in review) |
| Echinofossulocactus lancifer (A.Dietr.) Britton & Rose |
Unresolved |
 |
WCSP (in review) |
| Echinofossulocactus lexarzai (Bravo) Croizat |
Unresolved |
 |
WCSP (in review) |
| Echinofossulocactus lexarzai L. Bravo |
Synonym |
 |
TRO |
| Echinofossulocactus lloydii Britton & Rose |
Unresolved |
 |
WCSP (in review) |
| Echinofossulocactus macracanthus (Salm-Dyck) Lawr. |
Synonym |
 |
WCSP (in review) |
| Echinofossulocactus mirbelii (Lem.) Lawr. |
Synonym |
 |
WCSP (in review) |
| Echinofossulocactus multiareolatus Bravo |
Unresolved |
 |
WCSP (in review) |
| Echinofossulocactus multicostatus (Hildm.) Britton & Rose |
Unresolved |
 |
WCSP (in review) |
| Echinofossulocactus multicostatus f. erectocentrus (Backeb.) P.V.Heath |
Unresolved |
 |
WCSP (in review) |
| Echinofossulocactus multicostatus f. lloydii (Britton & Rose) P.V.Heath |
Unresolved |
 |
WCSP (in review) |
| Echinofossulocactus multicostatus f. lloydii (Britton & Rose) P.V. Heath |
Synonym |
 |
TRO |
| Echinofossulocactus multicostatus f. zacatecasensis (Britton & Rose) P.V.Heath |
Unresolved |
 |
WCSP (in review) |
| Echinofossulocactus multicostatus var. zacatecasensis (Britton & Rose) Lodé |
Unresolved |
 |
WCSP (in review) |
| Echinofossulocactus multicostatus f. zacatecasensis (Britton & Rose) P.V. Heath |
Synonym |
 |
TRO |
| Echinofossulocactus obvallatus (DC.) Lawr. |
Unresolved |
 |
WCSP (in review) |
| Echinofossulocactus ochoterenaus (Tieg.) Whitmore |
Unresolved |
 |
WCSP (in review) |
| Echinofossulocactus ochoterenianus (Tiegel) H.C. Whitmore |
Synonym |
 |
TRO |
| Echinofossulocactus oxypterus (Zucc. ex Pfeiff.) Lawr. |
Unresolved |
 |
WCSP (in review) |
| Echinofossulocactus parksianus Whitmore ex Schmoll |
Unresolved |
 |
WCSP (in review) |
| Echinofossulocactus parksianus C.Schmoll ex Pechanek |
Unresolved |
 |
WCSP (in review) |
| Echinofossulocactus parksianus Pechanek |
Synonym |
 |
TRO |
| Echinofossulocactus pentacanthus (Lem.) Britton & Rose |
Unresolved |
 |
WCSP (in review) |
| Echinofossulocactus pentacanthus var. david-boudetianus Bravo |
Synonym |
 |
TRO |
| Echinofossulocactus pfeifferi (Zucc.) Lawr. |
Synonym |
 |
WCSP (in review) |
| Echinofossulocactus phyllacanthus (Mart.) Lawr. |
Unresolved |
 |
WCSP (in review) |
| Echinofossulocactus platyceras (Lem.) Lawr. |
Synonym |
 |
WCSP (in review) |
| Echinofossulocactus recurvus (Mill.) Lawr. |
Synonym |
 |
WCSP (in review) |
| Echinofossulocactus robustus (Otto ex Pfeiff.) Lawr. |
Synonym |
 |
WCSP (in review) |
| Echinofossulocactus rosasianus Whitmore ex Schmoll |
Unresolved |
 |
WCSP (in review) |
| Echinofossulocactus rosasianus Whitmore ex Pechanek |
Unresolved |
 |
WCSP (in review) |
| Echinofossulocactus rosasianus Pechanek |
Synonym |
 |
TRO |
| Echinofossulocactus rosasianus (Pechanek) P.V. Heath |
Accepted |
 |
TRO |
| Echinofossulocactus rubrospinus Lawr. [Unplaced] |
Unresolved |
 |
WCSP (in review) |
| Echinofossulocactus spinosus (Wegener) P.V.Heath |
Unresolved |
 |
WCSP (in review) |
| Echinofossulocactus spinosus f. albatus (A.Dietr.) P.V.Heath |
Unresolved |
 |
WCSP (in review) |
| Echinofossulocactus spinosus f. vaupelianus (Werderm.) P.V.Heath |
Unresolved |
 |
WCSP (in review) |
| Echinofossulocactus spiralis (Karw. ex Pfeiff.) Lawr. |
Unresolved |
 |
WCSP (in review) |
| Echinofossulocactus sulphureus (A.Dietr.) Y.Itô |
Unresolved |
 |
WCSP (in review) |
| Echinofossulocactus sulphureus f. hastata (Hopffer) P.V. Heath |
Synonym |
 |
TRO |
| Echinofossulocactus tellii Y. Itô |
Synonym |
 |
TRO |
| Echinofossulocactus tetraxiphus (Otto ex K.Schum.) Oehme |
Unresolved |
 |
WCSP (in review) |
| Echinofossulocactus tricuspidatus (Scheidw.) Britton & Rose |
Unresolved |
 |
WCSP (in review) |
| Echinofossulocactus turbiniformis (Pfeiff.) Lawr. |
Unresolved |
 |
WCSP (in review) |
| Echinofossulocactus vanderaeyi (Lem.) Lawr. |
Synonym |
 |
WCSP (in review) |
| Echinofossulocactus vaupelianus (Werderm.) Oehme |
Unresolved |
 |
WCSP (in review) |
| Echinofossulocactus violaciflorus (Quehl) Britton & Rose |
Unresolved |
 |
WCSP (in review) |
| Echinofossulocactus wippermannii (Muehlenpf.) Britton & Rose |
Synonym |
 |
WCSP (in review) |
| Echinofossulocactus xiphacanthus (Miq.) Backeb. |
Unresolved |
 |
WCSP (in review) |
| Echinofossulocactus zacatecasensis Britton & Rose |
Unresolved |
 |
WCSP (in review) |
| Echinofossulocactus zacatecasensis var. moranensis Bravo |
Synonym |
 |
TRO |