ESA Züchter
| AB | Alice Buchanan | |
| ABN | Abbey Brooks Nursery | |
| ADH | Dr. Arthur D. Houghton | |
| AH | Adolph Hahn | |
| AM | Anton Mueller | |
| AMR | Ann Marie Rametta | |
| AMS | W. M. Amsbury | |
| ANDREE | William A. Andree | |
| AOF | Avery O. Fuller | |
| ARH | Arnold R. Hansen | |
| AUG | N. A. Auger | |
| AW | A. Worsley | |
| AX | Gladys Axcell | |
| B&CC | Bob & Carol Causey | |
| BA | Barb Alverez | |
| BARK | Helen Barkdoll | |
| BAYLEY | Grant Bayley (New Zealand) | |
| BBR | Barber | |
| BERG | Bob & Betty Berg | |
| BEU | Bill & Erna Beuer (Epico Nursery) | |
| BG | Beverly Garber | |
| BHM | Sherman E. Beahm (Beahm Gardens) | |
| BJ | Beth Jackson | |
| BKVEG | Brigade Kakteenzucht des Volkseigenes Gut (Germany) | |
| BORN | Georg Bornemann | |
| BURKS | Lois Burks | |
| BV | Bruno Visentini (Italy) | |
| CALL | Callender | |
| CARR | Joyce Carr | |
| CEC | Alice & Robert Buchanan + Bob & Lois Burks (Calif. Epi Center) | |
| CGEM | James Daniel (Cactus Gem Nursery) | |
| CI | Clive Innes | |
| CLDG | Coolidge (Coolidge Rare Plant Nursery) | |
| CLW | C. L. Wright | |
| CM | Clark Malcho | |
| Cour | Lorenzo Courant | |
| COX | John & Betty Cox | |
| CP | Cactus Pete Nursery | |
| CS | Charles Saltzer | |
| D&HT | Dan & Heather Taylor | |
| D&JF | Dorothy & Jerry Friedman | |
| DAJ | Darell Jenkins | |
| DANL | Dan Lundy | |
| DB | Don Burnett | |
| DC | Don Cravalho (Epiphyllum World) | |
| DD | Dan Dawson | |
| DENN | J. C. Dennis | |
| DFF | Don Francis | |
| DI | Don Irwin | |
| DIT | Ditman | |
| DL | Franz De Laet | |
| DM | Denise Manley | |
| DP | Don Patterson | |
| DPG | David P. Graham | |
| DRAKE | Drake | |
| DRAY | Jack Dray | |
| DREER | Dreer | |
| DTO | Derek T. Obayashi | |
| DW | Dick Wright | |
| EBP | Pat Dobbins (Epis by Pat) | |
| EC | Earl Childs | |
| EDJ | Ed Jaster | |
| EDW | E. Doug Ward | |
| EH | Eric Hodkinson (The Netherlands) | |
| EHI | Edward Imlay | |
| EIGS | Eigil Sorensen (Canada) | |
| EJR | E. J. Robertson | |
| EM | Eckard Meier | |
| ERD | Dr. Ernst R. Dorsch | |
| ES | Ernest Schwemmer | |
| ESA | Epiphyllum Society of America Research Committee | |
| EU | Erv Ulbrich | |
| EW | Chuck Everson & Jerry Williams (Rainbow Gardens Nursery) | |
| EZ | Ellen Zunino | |
| FAH | unknown (pos. F. A. Haage) | |
| FAW | F. A. Walton | |
| FB | Fred Boutin | |
| FEC | F. E. Cooper | |
| FEL | Fern La Borde | |
| FG | Frank Granatowski | |
| FLECH | Phyllis Flechsig | |
| FLT | Fred L. Turner | |
| FOB | Paul Fort & Garland O'Barr | |
| FOER | C. F. Foerster | |
| FRE | George French | |
| G&BW | George & Beverly Ware | |
| GAM | Jerry Moreau | |
| GARDNER | Carla Gardner | |
| GB | Georg Bange | |
| GBRAN | Gary Brandfellner | |
| GDE | Gray/Davis Epiphyllum Nursery | |
| GFB | Greg Balvin | |
| GM | Gerry Mattijetz | |
| GRIMS | Bob Grimshaw (Grimshaw's Epi-Time Nursery) | |
| GS | Gene Schmedding | |
| GUS | Gus Schlapfer | |
| GW | Gene Wheeler | |
| HAAGE | The Haage Family | |
| HAF | Helene & Avery Fuller | |
| HAM | Alice Hamiter | |
| HATH | W. J. Hathaway | |
| HD | Heiner Düsterhaus (Germany) | |
| HDY | Eulah Hardy | |
| HEA | Helga Albrecht (Germany) | |
| HIA | Mrs. Marty Alcock | |
| HKS | Dean & Tina Hawks (Hawks Epiphyllum Nursery) | |
| HLJ | Howard L. Jones | |
| HORN | C. E. Horn | |
| HOV | Charles M. Hovey | |
| HOWD | Mrs. Mabel Howard | |
| HP | Helmut Paetzold | |
| HS | unknown | |
| HSI | Dr. Herbert S. Irwin | |
| HST | Ethel M. Hurst (Hurst's Nursery) | |
| HUMMEL | Hummel's Nursery | |
| IBM | Ivan & Bel McCord | |
| IJH | I. J. Hughes | |
| JAD | John A. Daniel | |
| JB | John Banks | |
| JG | John Golightly | |
| JHEU | Jim Hunter (Epi Universe) | |
| JHSN | Harry Johnson (Johnson's Cactus Garden) | |
| JJ | Jeanie Jones | |
| JLN | Jardin Las Nubes - Tom Moore (Puerto Rico) | |
| JMR | John M. Riley | |
| JO | Nathan & Dorothy Ogdon | |
| JOB | Jack O. Bailey | |
| JP | Jim Pence (Epi World Nursery) | |
| JQT | Joe Quang Tran | |
| JS | Jean Seile | |
| JWT | Dr. J. W. Troxell | |
| K&PB | Keith & Pat Ballard | |
| KADO | R. F. Kado | |
| KBY | Frank Kirby | |
| KELLY | Mary Kelly (Kelly's Epiphyllum Collection) | |
| KFL | Dr. Ken Loomis | |
| KLUG | Richard Klug | |
| KMcC | Ken McCuller | |
| KN | Curt Knebel | |
| KOENEN | Manfred Koenen (Germany) | |
| KP | Kurt Petersen | |
| LAB | Labouret | |
| LANE | Arthur G. Lane | |
| LAT | Richard G. Latimer, Sr. | |
| LD | Lola Dearborn | |
| LEA | Leona & Everett Andrews | |
| LEE | John W. Lee | |
| LMD | Leo M. Daly | |
| LP | L. Pfeiffer | |
| LUCK | Gene Luckenbacher | |
| LUND | Gene Lund | |
| LUX | Arnhelm Lux (Germany) | |
| M&WH | Mel & Wilma Horstman | |
| MBD | Mike Davis | |
| MC | Matt Cheney | |
| MCN | Robert & Shala McNeil | |
| McQ | F. R. McQuown | |
| MDT | Milton D. Turner | |
| MEND | Clarence Mendelson | |
| MFM | Martha F. Maxwell | |
| MGH | M. G. Haines (England) | |
| Mitler | L. Mitler | |
| MITS | Mitsuhashi Nursery | |
| MIY | Daryl Miyamoto | |
| MN | Madeline Nelson | |
| MOORE | Thomas Moore | |
| MP | Mark Piette | |
| MSF | Margie Sausser Fulton | |
| MVM | Mildred Mikas | |
| MW | Mel Wilson | |
| MYR | E. R. Myers | |
| NAH | Floyd Nahigian | |
| NEM | Norwood E. Meiners | |
| NG | Norman Golightly | |
| NIC | J. Nicolai | |
| NO | Nate Ogden | |
| NONES | Jim Nones | |
| NR | Nelson Ross | |
| OAK | Oakleigh Gardens | |
| OES | Adam Oestreicher | |
| OH | Owen Hamilton | |
| OVW | Ora V. Walker | |
| PARK | Park Commercial Nursery | |
| PASCHKE | Horst Paschke | |
| PAT | Roy R. Patrick | |
| PCK | Peacock | |
| PECK | Phil Peck | |
| PET | Elly Peterson | |
| PFEIFFER | L. Pfeiffer | |
| PHJ | Perry A. Jenkins | |
| PITT | Galen Pittman | |
| PKR | Leslie Parker (Lessar's Nursery) | |
| PONZ | F. C. Ponzoni | |
| PRUESCH | Jesse Pruesch | |
| PS | Peter Sinclair | |
| PW | P. Worley | |
| R&JG | Roy & Jane Griffith (New Zealand) | |
| R&SC | Roger & Sandy Chapin | |
| RA | Ray Arnold | |
| RAS | Ray A. Shields | |
| RB | R. Boysen | |
| RCM | R. C. Miller | |
| RD | Richard Diener | |
| REDC | Raymond Eden / Donald E. Clinton | |
| REG | R. A. von Regel | |
| RG | Richerd Graessner | |
| RGL | Richard G. Latimer, Jr. | |
| RJC | Richard J. Chadwick | |
| RM | Rose Miyaji | |
| ROWL | Gordon Rowley | |
| RS | Robert Stansel | |
| RSC | Rosemarie Schwenzer | |
| RU | Georgiana Russell | |
| RUD | Rudolph Hessing | |
| RWK | Dr. R. W. Kohlschreiber | |
| RWP | Dr. Robert Poindexter | |
| S&RC | Sandra & Roger Chapin | |
| SAGE | Pat Sage | |
| SAND | Pearl Sanders | |
| SCH | Ernst Schelle | |
| SELLO | Sello Hoffgaertner | |
| SF | Samuel Feast | |
| SHER | Jim Sherman (Sherman's Plants) | |
| SHF | Charles P. Sherfy | |
| SHI | Evelyn Shiraki | |
| SHUEY | Ralph C. Shuey | |
| SIBL | Frank Sibl | |
| SIM | Charles Simon | |
| SIPE | True B. Sipe | |
| SLR | Sanford L. Roberts | |
| SPE | South Pacific Epiphyllums - Carol Rogerson (New Zealand) | |
| SPIN | Steve Pincott (Australia) | |
| SPK | Taggart Spinks | |
| SR | Shirley Rogers | |
| SRD | Joseph, Prince of Salm-Reifferscheid-Dyck | |
| STEP | Edward Stephans | |
| STERN | Frank Stern | |
| STL | Clarion Steele | |
| STO | Chauncey Stoddard | |
| T&W | Taylor & Wickes (England) | |
| TBS | Theodosia B. Shepherd | |
| TDH | Thomas D. Harmon | |
| TJ | Thomas Jendrysiak (Germany) | |
| TMM | Theresa M. Monmonier (Vntura Epiphyllum Gardens) | |
| TNR | See: MDT | |
| TR | T. Ruempler | |
| VASS | Charles Vasseur | |
| VDA | van der Auwera | |
| VH | Vern Hettinger | |
| VIF | Velma Featherstone | |
| VK | Virginia Kocontes | |
| VWARD | Vera Ward | |
| WAJMD | Dr. William Dawson (England) | |
| WAL | W. G. Walpers | |
| WAT | W. Watson | |
| WATTS | Harold F. Watts | |
| WC | Wressey Cocke | |
| WCL | William Clark | |
| WEG | H. M. Wegener | |
| WEIN | Weinberg | |
| WERD/SOC | Werdermann/Socnik | |
| WEST | Rose West | |
| WK | Wilhelm Kesselring | |
| WMS | Peggy Williams | |
| WOR | W. O. Rother | |
| WS | Dr. Werner Stauch | |
| WU | Werner Uebelmann (Switzerland) | |
| WW | Wolfgang Wilborn (Germany) | |
| Y&AB | Yvonne & Andrew Brunton (Craigmyle Epiphyllum Nursery, New Zealand) | |
| YANKO | Tony Yanko |