| ALN | Alandia S. Est. Exp. Agr. Serv. Agric. Interamericano, Cochabamba, Bolivia |
| AND | Anderson, G. ,University of Connecticut, USA |
| ASL | Astley, D. and Landeo J. (CIP, Peru), Netherlands-Birmingham-Anden Exped. 1974 |
| AST | Astley, D., University of Birmingham, UK |
| BAE | Baerecke, MPI Köln-Vogelsang, Germany |
| BB | Biologische Bundesanstalt, Braunschweig, Germany |
| BBD | Biologische Bundesanstalt Berlin-Dahlem, Germany |
| BEL | Sta. Rech. lŽEtat pour Amelioration de la Pomme de terre, Libramont, Belgium |
| BIKMS | Belorrussian Institute for Potatoes, Fruits and Vegetables in Minsk-Samochvalovitschi, USSR |
| BLS | Balls E.K., England. 1938 Potato Collection in Mexico |
| BPC | Birmingham Potato Collection. Private collection amassed by Prof. J.G. Hawkes |
| BRU | Brücher E.H., Centro Regional de Inv. Cientificas y Tecnologicas, Argentina |
| BRUC | Brücher E.H., Caracas, Venuzuela |
| BRUM | Brücher E.H., Mendoza, Argentina |
| BRUT | Brücher E.H., Tucuman, Argentina |
| BUK | Bukasov S.M., Vavilov Institute of Plant Industry, Leningrad, USSR |
| BZAM | Biologische Zentralanstalt, Institut für Kartoffelkäferforschung Mühlhausen, Germany |
| CAR | Cardenas M., Universidad Mayor de San Simon, Cochabamba, Bolivia |
| CAS | Castronovo, A., Centro. Nac. de Inv. Agropecuarias, Castelar, Arnentina |
| CCC | Coleccion Central Colombiana, Instituto Colombiano Agropecuario, Bogota, Colombia |
| CIP | Centro International de la Papa, Lima, Peru |
| CHM | Contreras A. (Univ. Austral Chile), Huaman Z. and Montaldo P. (Univ. Austral) |
| COR | Correll D.S., Texas Research Foundation, Renner, Texas |
| CPC | Commonwealth Potato Collection, Scot. Pl. Breed: St., Pentlandsfield, Scotland |
| CRO | Corro, ?? |
| DDS | Dodds K.S., John Innes Institute, Cambridge, U.K. |
| DOP | Dodds K.S. and Paxman G.J., John Innes Institute Expedition 1959-60 |
| DOSe | Dodds K.S. and Simmonds N.W., John Innes Institute Expedition 1962 |
| DIM | Diem J., Estafeta El Cruce, San Carlos de Bariloche, Argentina |
| EBS | Erwin-Baur-Sortiment, Max-Planck Inst. Züchtungsforsch., Köln- Vogelsang, Germany |
| FALPZBS | Institute for Agriculture and Plant Breeding, F.A.L., Braunschweig, Germany |
| FB | Facultad de Agronomia, Las Brujas, Uruguay. Donations to Ochoa C.M. by Vilaro |
| GLK/GLKS | Potato Collection Gross Lüsewitz, Germany |
| GND | Gandarillas, H., Ministerio de Agricultura, Servicio Agricola Interamericano, Balcarce, Argentina |
| GRA | Graham K.M., Korinivia Research Station, Nausori, Fiji |
| GRAH | Agriculture Research Station, Fredericton, Canada |
| GRL | Gourlay, British plant collector |
| GUZ | Guzman, ? |
| HAH | Hawkes,J.G., Aviles, I. and Hoopes, R.W., Dutch-German Expedition to Bolivia 1981 |
| HAM | Hondelmann, W. (F.A.L., Braunschweig, Germany), Astley, D. and Moreira, A. (IBTA, Bolivia) |
| HAO | Hoopes, R.W., Aviles, I. and Okada, K.A. |
| HAVL | Research and Plant Breeding Institute of Potatoes, Havlickuv Brod, Czechoslovakia (CSFR) |
| HAW | Hawkes,J.G., University of Birmingham, Birmingham, U.K. |
| HBA | Botanical Garden Amsterdam, The Netherlands |
| HBK | Botanical Garden Kopenhagen, Denmark |
| HBR | Botanical Garden Rostock, Germany |
| HHA | Hawkes,J.G., Hjerting, J.P. and Aviles, I. (IBTA, Bolivia) |
| HHCH | Hawkes,J.G., Hjerting, J.P., Cribb, P.J. and Huaman, Z. (CIP, Lima, Peru) |
| HHLS | Hawkes,J.G., Hjerting, J.P. and Lester, R., Birmingham University Exp. to Mexico |
| HHR | Hawkes, J.G., Hjerting, J.P. and Rahn, K. (Denmark) |
| HHRO | Hawkes, J.G., Hjerting, J.P., Rahn, K. and Okada, K.A. |
| HJR | Hjerting, J.P. and Rahn, K., Denmark |
| HJT | Hjerting, J.P., Copenhagen Botanical Gardens, Copenhagen, Denmark |
| HOF | Hoffman, W., E.E. Agropec. Balcarce, I.N.T.A., Argentina |
| HOHH | Hawkes J.G., Okada, K.A., Hermsen, J.G. and van Harten, A.M.,Exp. to Bolivia 1974 |
| HOHL | Hawkes, J.G., Okada, K.A., Hermsen, J.G. and Landeo, J. |
| HPR | Hjerting, J.P., Petersen, E. and Rahn, K., Expedition Argentina 1965/66 |
| HUA | Huaman, Z., International Potato Center (CIP), Lima, Peru |
| HYO/OCH | /Ochoa, C.M., CIP, Lima, Peru |
| IHAR | Institute for Potato Research, Bonin, Poland |
| INIFAP | Instituto Nacional Investigaciones Forestales Agropecuarias, Metepec, Mexico |
| INIV | Estacion de Mejora de la Patata, Vitoria, Spain |
| Inst. Lillo | ?? |
| INTA | Estacion Experimental Agropecuaria, Balcarce, Argentina |
| JIHI | John Innes Institute, Bayfordbury, Great Britain |
| JUZ | Juzepczuk, WIR, N.I. Vavilov All-Union Institute of Plant Industry, Leningrad, USSR |
| KES | Kesselbrenner, WIR, N.I. Vavilov All-Union Institute of Plant Industry, Leningrad, USSR |
| KESZTH | Agrartudomanyi Egyetem Keszthely, Hungary |
| KORENJ | Scientific Research Institute for Potato Management, Korenjewo, USSR |
| LBUK | Lamm and Bukasov, S.M.,WIR, N.I.Vavilov All-Union Institute fo Plant Industry, Leningrad, USSR |
| LIBR | Station de Haute Belgique, Rue du Serpont, B-6800 Libramont |
| LKF | Danish Potato Breeding Foundation, Vandel, Denmark |
| MAUK | Ministry of Agriculture of the UK Government |
| MLOCHOW | Institute for Potato Research, Genetics and Virology Mlochow, Poland |
| MPI | Max-Planck-Institute for Breeding Research |
| MPIH | Max-Planck-Institute for Breeding Research, Hamburg Volksdorf |
| MPIZFK | Max-Planck-Institute for Breeding Research, Köln-Vogelsang, Germany |
| MPIZFV | Max-Planck-Institute for Breeding Research, Voldagsen, Germany |
| OCH | Ochoa, C.M., International Potato Center (CIP), Lima, Peru |
| OCHL | Ochoa, C.M. and Lopez ? |
| OCHS | Ochoa, C.M. and Salas, A., CIP, Lima, Peru |
| OKA | Okada, K.A., E.E. Agropec. Balcarce, Inst.Nac. Tecnologia Agropecuaria, Argentina |
| PET | Petterson M. , Cambridge, UK. |
| PEH | Petersen, E. (Bariloche, Argentina) and Hjerting, J.P. (Copenhagen, Denmark) |
| RDD | Reddick, D.D., Cornell University Agric. Exp. Station, Ithaca, New York |
| ROC | The Rockefeller Foundation, Calle Londres 40, Mexico 6, D.F., Mexico |
| ROS | Ross, H., former Max-Planck-Inst. Züchtungsforschung, Köln-Vogelsang, Germany |
| ROR | Ross, H. and Rimpau, R., Deutsche Botan.-Landwirtschaftliche Anden Exped. 1959 |
| ROST | v. Rosenstiel, Kaiser-Wilhelm-Institut Müncheberg, Germany |
| RWH | ?? |
| SAMOKOV | Potato Experiment Station, Samokov, Bulgaria |
| SCH | Schick, DAL Institut für Pflanzenzüchtung, Groß Lüsewitz |
| SL | Van Soest, L.J.M. (F.A.L. Braunschweig) and Landeo, J. (IBTA, Cochabamba, Bolivia) |
| SLU | Sleumer, H., Univ. Nac. Tucuman, Argentina (Rijksherbarium, Leide, Netherl.) |
| SA | Van Soest, L.J.M. (F.A.L., Braunschweig) and Alarcon C. (IBTA Toralapa, Bolivia) |
| SAL | Van Soest, L.J.M., Alarcon, C. and Landeo, J. , CIP, Lima, Peru |
| SC | Spooner, D.M. (USA), Contreras, A.M. (Chile) |
| SCLp | Spooner D.M. (USA), Castillo R. (INIAP, Ecuador) and Lopez L. (IBPGR, Colombia) |
| SHGRF | Spooner D.M., Hjerting J.P., Gomez J., Rodriguez A. and Flores F. (INIFAP, Mexico) |
| SLM | Salaman, R.N., late Director of the Potato Virus Research Station, Cambridge |
| SLC | Van Soest, L.J.M., Landeo, J. and Claure, R. (IBTA, Cochabamba, Bolivia) |
| SOA | Van Soest, L.J.M., Okada, K.A. and Alarcon, C. |
| SKP | Soucup, ? |
| SVALÖF | Svalöf AB, Sweden |
| SVP | Stichting for Plantenveredeling, Wageningen, The Netherlands |
| STUR | Sturgeon Bay, Interregional Potato Introduction Station, Wisconsin, USA |
| TOR | ?? |
| TOX | Toxopeus, H.J., Inst. voor Plantenveredeling, Wageningen, The Netherlands |
| TRN | Tarn, T.R., Agriculture Canada, Fredericton, New Brunswick, Canada |
| TRHRG | Tarn T.R., Ross, R.W., Hjerting, J.P., Rivera-Pena, A. and Gomez, J. (Mexico) |
| UAC | Austral University of Chile, Valdivia, Chile |
| UGN | Ugent, D., Southern Illinois University, Carbondale, Illinois, USA |
| UNT | Universidad Nacional de Tucuman, San Miguel de Tucuman, Argentina |
| VAR | Vargas, C., Cuzco, Peru ?? |
| WAC | Wageningen Potato Collection, Inst. of Plant Breeding, Wageningen, The Netherlands |
| WIR | N.I. Vavilov All-Union Institute of Plant Industry, Leningrad, USSR |
| WRF | Wisconsin Research Foundation, University of Wisconsin, Madison, Wisconsin, USA |
| YAB | Yabar, O., Universidad de Cuzco, Peru |
| ZAV | Zavaleta, R.M., La Paz, Bolivia |
| ZHUK | Zhukovski, WIR, N.I. Vavilov All-Union Institute of Plant Industry, Leningrad, USSR |
| ZIGUKG | Zentralinstitut für Genetik und Kulturpflanzenforschung Gatersleben |