A Short Chronicle of 50 Years of IOS

Honorary Members of IOS | Cactus d'Or

Congresses, Inter-Congresses, Board-Members, Members Passed Away, and New Members

Inaugural Meeting: 27-30 September 1950 in ZÜRICH (CH) at the old Botanical Institute of the University of Zürich at Pelikanstrasse

Members of the inaugural meeting: Dr. E. Buchmann-Felber (CH), A. F. A. Buining (NL), Prof. Dr. F. Buxbaum (A), Dr. W. Cullmann (BRD), Prof. Dr. A. U. Däniker (CH), E. Gerber (CH), E. Glauser (CH), Dr. W. G. Herter (CH), Prof. Dr. J. A. Huber (BRD), H. Jacobsen (BRD), J. A. Janse (NL), W. Kesselring (D), Hans Krainz (CH), J. M. Marnier-Lapostolle (F), G. Moll (CH), J. Panella-Bonastre (E) Prof. D. Regel (BRD), H. M. Roan (GB), Prof. Dr. J .Schlittler (CH), Prof. Dr. G. Schwantes (BRD), A. J. A. Uitewaal (NL), L. F. Vatrican (PM), Prof. Dr. F. Werdermann (BRD)

Participants at the Inaugural Meeting of IOS in front of the Old Botanical Institute of the University of Zürich at Pelikanstrasse 40. From left to right: Dr. A. Schlittler, Prof. Dr. J. A. Huber, Prof. Dr. F. Buxbaum, Prof. Dr. D. Regel, Dr. W. Herter, Prof. Dr. A. U. Däniker, Prof. Dr. E. Werdermann, J. Panella, A. J. A. Buining, J. Janse, H. M. Roan, Dr. W.Cullmann, H. Krainz, W. Kesselring, E. Glauser, H. Jacobsen, J. Marnier, E. Gerber, L. F. Vatrican (Prof. Dr. G. Schwantes is not on the photograph).

2. Congress: 21-24 September 1953 in MONACO (PM)

Board: 2 Secretaries: Hans Krainz (CH), H. M. Roan (GB)
New members: Dr. P. R. O. Bally (CH), Prof. Dra. H. Bravo Hollis (MEX), R. S. Byles (GB), Prof. M. Cárdenas (Bolivia), Prof. C. Distefano (I), Prof. J. Donald (GB), L. Fuaux (Australia), R. Gräser (BRD), Prof. Dr. A. Guillaumin (F), H. Hall (RSA), H. Herre (RSA), V. Higgins (GB), P. C. Hutchison (USA), B. Kurtz (USA), F. Riviere de Caralt (E), G. Rowley (GB), Dr. A. Tischer (BRD)

2. IOS Congress 1953 in Monaco

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3. Congress: 5-9 September 1955 in LONDON (GB)

Board: 2 Secretaries: L. F. Vatrican (PM), F. Riviere de Caralt (F)
New members: Dr.L.Benson (USA), Dr. H. W. de Boer (NL), Prof. N. H. Boke (USA), Dra. H. L. M. Bolus (RSA), Dr. B. K. Boom (NL), Dr. R. Bouillène (B), J. R. Brown (USA), A.Dr.Castellanos (Bolivia), Dr.B.U.Clover (USA), Dr. R. T. Craig (GB), L. Cutak (USA), Dr. P. A. Florschütz (NL), S. E. Haselton (USA), M. Kimnach (USA), Dr. G. Lindsay (USA), Prof. Dr. J. Millot (F), Dr. R. Moran (USA), Dr. N. Remsky (USA), H. Oku (Japan), B. R. Sventenius (B), Dr. Ch. Uhl (USA), W. Wessner (BRD), Prof. I. L. Wiggins (USA)

3. IOS Congress 1955 in London (from left to right: A. J. A. Uitewaal, J. A. Janse, F. Riviere de Caralt, J. Panella-Bonastre, L. F. Vatrican)

4. Congress: 26 - 30 August 1957 in DEN HAAG (NL)

Board: 2 Secretaries: L. F. Vatrican (PM), F. Riviere de Caralt (E)
New members: A. Bertrand (F), Prof. Dr. V. Camarrone (I), Dr. E. Eichenberger (CH), Prof. Dr. P. Meletti (I)

5. Congress: 31 August-5 September 1959 in KIEL (D)

Board: 2 Secretaries: L. F. Vatrican (PM), F. Riviere de Caralt (E)
In memoriam Prof Dr. Erich Werdermann (BRD, 19.4.1959)
New members: Prof. Dr. W. Rauh (BRD)

6. Congress: 5-8 June 1961 in BARCELONA (E)

Board: L. F. Vatrican (PM, Pres.), Dr. B. K. Boom (NL, Secr.), H. Krainz (CH, Treas.).
In memoriam Prof. Dr. Gustav Schwantes (BRD, 1960).
New members: M. Bonefaas (NL), W. Haage (DDR), Prof. Dr. H.-D. Ihlenfeldt (BRD), M. Karmazin (Cz), M. Kroenlein (PM), F. Ritter (BRD), Prof. Dr. H. Straka (BRD), L. Schattat (BRD).

6. IOS Congress 1961 in Barcelona (from left to right: B. K. Boom, J. A. Janse, J. Papella-Bonastre, F.Riviere de Caralt, L. F.Vatrican, A. F. A.Buining, H. Krainz)

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7. Congress: 26-29 August 1963 in WIEN (A)

Board: L. F. Vatrican (PM, Pres.), B. K. Boom (NL, Secr.), H. Krainz (CH, Treas.)
In memoriam M. Oku (Japan, 1963), Dr. F. Rappa (I), B. Shurly (GB, 1963), A. J. A. Uitewaal (NL, 29.3.1963)
New members: H. Balzer (BRD), Dr. F. Y. Dawson (USA), J. Doinet (B), Dr. J. W. Dodson (USA), G. Frank (A), W. Fricke (BRD), Dr. H. Friedrich (A), Dr. C. Gasperini (I), Dr. H. J. Hilgert (BRE)), R. Hösslinger (BRD), J. C. van Keppel (NL), Dr. L. Kladiwa (A), S. P. J. Konder (H), Dr. L. E. Newton (GB), F. Pazout (CZ), G. Pecheret (F), Dr. B. Priessnitz (A), Y. Ryutanji (Japan), Dr. B. Schütz (CZ), Dr. A. Simo (A), A. d'Urso (I), Dr. J. Valnicek (CZ), B. A. Wouters (NL).

8. Congress: 28 April-2 May 1965 in CATANIA (I)

Board: L. F. Vatrican (PM, Pres.), B. K. Boom (NL, Secr.), H. Krainz (CH, Treas.)
In memoriam Prof. Dr. A. U. Däniker (CH)
New members: Dr. P. V. Bole (Ind), M. David-Boudet (F), F. Guldemont (B), Dr. H. Hecht (BRD), Dr. W. Hoffmann (BRD), D. R. Hunt (GB), T. Kaku (Japan), L. C. Leach (RSA), H. Rose (F).

9. Congress: 1-7 May 1967 in BEAULIEU (F)

Board: L. F. Vatrican (PM, Pres.), Dr. W. Cullmann (BRD, Vicepres.), B. K. Boom (NL, Secr.), H. Krainz (CH, Treas.)
In memoriam B. J. Dawson (USA, 1966), W. Kesselring (BRD, 1966)
New members: W. Andreae (BRD), W. de Cocker (B), Dr. H. C. Friedrich (BRD), J. Gastaud (F), C. Glass (USA), Dr. R. Hamet (F), Dr. H. Heine (F), P. Kern (H), B. Lamb and E. Lamb (GB), Dr. K. Mortimer (GB), G. Pallanca (I), W. J. M. Sterk (NL), D. J. van Vliet (NL)

10. Congress: 26-31 May 1969 in LIEGE (B)

Board: L. F. Vatrican (PM, Pres.), Dr. W. Cullmann (BRD, Vicepres.), Dr. B. K. Boom (NL, Secr.), R. Hösslinger (D, Treas.)
In memoriam Prof. A. Castellanos (Bolivia), Dr. J. Valnicek (CZ, 4.5.1967)
New members: Dra. S. Dupont (F), R. A. Foster (USA), C. Innes (GB), J. Lavranos (RSA), C. A. E. Parr (GB), W. Rausch (A), Prof. Dr. K. Schreier (BRD)

11. Congress: 1-4 June 1971 in HEIDELBERG (D)

Board: L. F. Vatrican (PM, Pres.), Dr. H. Friedrich (A, Secr.), R. Hösslinger (BRD, Treas.)
In memoriam Wilhelm Andreae (BRD, 7.5.1970), Dr. H. W. de Boer (NL, 14.3.1970), Prof. Dra. Luisa Bolus (RSA, 5.4.1970), Dr. B. Buchmann-Felber (CH, 14.12.1969)
New members: F. Boszing (A), Prof. D. T. Cole (RSA), A. Coppens (B), Prof. Dr. L. Diers (BRD), B. Fearn (GB), Z. Fleischer (CZ), Dr. H. Hartmann (BRD), F. K. Horwood (GB), F. Krähenbühl (CH), Dr. Z. Mezaros (H), F. Noltee (NL), M. Voldan (CZ), C. Williams (GB)

11. IOS Congress 1971 in Heidelberg (from left to right: A. F. Buining, M. Kroenlein, Ch. Friedrich, unkown, J. M. Manier-Lapostolle,W. Rauh, Mrs Vatrican. L. F. Vatrican, Mrs Cullmann, W. Cullmann)

12. Congress: 2-9 September 1973 in READING (GB)

Board: L. F. Vatrican (PM, Pres.), Dr. W. Cullmann (BRD, Vicepres.), Dr. H. Friedrich (A, Secr.), R. Hösslinger (BRD, Treas.)
In memoriam R. Boullene (B), Prof. M. Cárdenas (Bolivia, 14.2.1973), L. Cutak (USA, 18.1.1973), Dr. Raymond Hamet (F, 1972), Dr. B. R. Sventenius (B)
New members: A. J. Brederoo (NL), W. H. Barle (USA), R. Ginns (GB), D. R. Hunt (GB, reentry), A. B. Lau (MEX), W. F. Maddams (GB), L. M. Mason (GB), K. H. Graham (GB), P. Kern (H), J. W. Pilbeam (GB), B. W. Putnam (GB), G. Schatzl (A), A. P. Sokolow (USSR), S. W. Young (GB)

13. Congress: 10-16 September 1974 in SANTA BARBARA (USA)

Board: L. F. Vatrican (PM, Pres.), Dr. W. Cullmann (BRD, Vicepres.), Dr. H. Friedrich (A, Secr.), R. Hösslinger (BRD, Treas.)
In memoriam Prof A. Guillaumin (F, 1973), Prof. J. A. Huber (BRD, 1973)
New members: Prof. B. F. Anderson (USA), J. B. Bleck (USA), M. C. Bleck (USA), Dr. P. E. Brandham (GB), J. Brooke (GB), J. A. Hart (GB), Dr. R. B. Ivimey-Cook (GB), Mrs. Z. Kabiesz (POL), G. Lyons (USA), Prof. B. Matuda (MEX), H. Sanchez-Mejorada (MEX), D. Supthut (CH), N. B. Willbraham (GB)

14. Congress: 6-11 September 1976 in BARCELONA (E)

Board: Prof. J. Donald (GB, Pres.), Prof. Dr. W. Rauh (BRD, Vicepres.), Dr. H. Friedrich (A, Secr.), D. R. Hunt (GB, Ass. Secr.), D. Supthut (CH, Treas.)
In memoriam Albert F. H. Buining (NL, 9.5.1976), M. J. Doinet (B, 1975), J. Marnier Lapostolle (F, 18.2.1976), Dr. P. A. Florschütz (NL, 27.5.1976), J. Konder (H, 31.7.1976), F. Pazout (CZ, 1976)
New members: Prof J. F. Ballester-Olmos (B), Prof Dr. W. Barthlott (BRD), Dr. D. Bramwell (B), L. Brinson (USA), L. Carruthers (GB), Dr. J. Drawert (DDR), M. G. Gilbert (GB), L. Glass (GB), D. B. Grigsby (USA), H. Hirao (Japan), S. Holmes-Carter (GB), Prof A. T. Hunziker (ARG), Dr. R. Kiesling (ARG), Dr. B. Leuenberger (CH), J. Iliff (GB), G. G. Leighton-Boyce (GB), Dr. P. Locuty (CH), Dr. J. Meyran-Garcia (MEX), Dr. S. Miklaszewski (POL), Prof L. W. Mitich (USA), Dr.M.Palmas (I), Dr. H. H. Poppendieck (BRD), Dr. A. Rabson (RSA), G. J. Swales (GB), Dr. D. Wolsky (USSR), R. Zahra (Malta), B. Zecher (A)

15. Congress: 14-19 May 1978 in MONTE CARLO (PM)

Board: Prof.J.Donald (GB, Pres.), Prof Dr.W.Rauh (BRD, Vicepres.), Dr.H.Friedrich (A, Secr.), D.R.Hunt (GB, Ass.Secr.), D.Supthut (CH, Treas.)
In memoriam J.R.Brown (USA, 21.9.1977), A.Coppens (B), R.Ginns (GB, 26.12.1976), Robert Graser (BRD, 5.9.1977), J.A.Janse (NL, 15.3.1977), S.P.J.Konder (H), Prof F.Matuda (MEX, 12.2.1978)
New members: B.R.Adams (GB), M.B.Bayer (RSA), P.G.Bourdoux (B), A.Camboulive (F), L.F.Davis (USA), Y.Delange (F), Dr.V.Habermann (CZ), R.Hebding (F), M.J.Kimberley (RHOD), W.C.Keen (GB), L.Lippold (USA), Dr.L.Nemes (H), W.Reppenhagen (A), D.Szabo (H), R.Vasquez (Bolivia)

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16. Congress: 23-29 March 1980 in MEXICO CITY (MEX)

Board: Prof. J.D.Donald (GB, Pres.), Prof Dr.W.Rauh (BRD, Vicepres.), L.C.Brinson (USA, Secr.), Dr.H.Friedrich (A, Ass. Secr.), D.Supthut (CH, Treas.)
In memoriam Peter R.O.Bally (KEN, 26.7.1980), H.Bonefaas (NL, 1980), Dr.B.K.Boom (NL, 21.3.1980), Prof Dr.Franz Buxbaum (A, 7.2.1979), A.Camboulive (F, 18.5.1979), Z.Fleischer (CZ, 24.7.1978), Dr.H.Herre (RSA, 16.1.1979), Dr.Hermann Jacobsen (BRD, 19.8.1978)
New members: Dr.G.S.Barad (USA), Dr.Z.Debreczy (H), Prof Dr.B.Filer (CH), O.F.Ferrari (ARG), D.S.Hardy (RSA), M.Haude (DDR), H.Koop (A), F.Losenicky (A), Dr.R.F.Monroe (USA), K.C.Newland (USA), J.Pina-Lujan (MEX), G.Sydow (DK), N.P.Taylor (GB), W.J.Tjaden (GB), Prof Dr.D.J.Willert (BRD)

Three views of the 16 IOS Congress in Mexico City (Photographs: top left J.Meyren; top right and bittom ; D.Supthut)

17. Congress 23-27 August 1982 in WIEN (A)

Board: Prof J.D.Donald (GB, Pres.), Prof Dr.W.Rauh (BRD, Vicepres.), L.C.Brinson (USA, Secr.), Dr.H.Friedrich (A, Ass. Secr.), D.Supthut (CH, Treas.)
New members: Prof Dr.F.Albers (BRD), Dr.H.Antesberger (A), K.Augustin (A), Dr.H.F.Glen (RSA), Mrs.I.Hoffmann (USA), Dr.B.Hoffmann (DDR), D. Hönig (BRD), I.Joschtel (A), Hans Krainz (CH, 30.5.1980), M.de Munter (B), J.Rauh (CH), Dr.M.Sajeva, (1), Dr.H.Steif (A), H.Till (A), G.Unger (A)

18. Congress: 10-16 June 1984 in FRANKFURT (BRD)

Board: H.Sanchez-Mejorada (MEX, Pres.), Prof E. F. Anderson (USA, Vicepres.), Dr. D. R. Hunt (GB, Secr.), Dr. B. Leuenberger (BRD, Ass. Secr.), D. Supthut (CH, Treas.)
In memoriam : Jan van Keppel (NL, 13.2.1983), Willi Wessner (BRD, 10.5.1983)
New members: G. Anderson (BRD), Dr. P. Braun (BRD), Dr. J.-M. Chalet (CH), Dr. U. Eggli (CH), Dr. G. R. W. Frank (BRD), Dr. W. Glätzle (A), R. Havlicek (CZ), K. Hesselbarth (BRD), E. van Jaarsveld (RSA), M. A. T. Johnson (GB), Dr. D. L. I. Koutnik (USA), Mrs. S. Oldfield (GB), Dr. G. Schoser (BRD)

1. Inter-Congress: 20-23 July 1985 in ZÜRICH (CH)

In memoriam Paul Bourdeaux (F, 10.10.1985), Hubert Earle (USA, 2.12.1984), D.Szabo (H, 2.8.1984)
New members: S.Brack (USA), H.Britsch (USA), M.O.Brutsch (RSA), K.F.Dutine (BRD), Dr.T.Engel (BRD), Dr.L.F.Groen (NL), Prof Dr.G.Gröner (BRD), K.D.Heil (USA), R.Lafon (USA), Prof J.Mauseth (USA), F.Meyer (BRD), F.Mengarelli (I), Dr.M.Meregalli (I), P.J.Michel (GB), Dr.R.Moore (USA), Prof P.S.Nobel (USA), V.Pauly (E), R.Pillar (BRD), Prof Dr.D.J.Pinkava (USA), Dr.W. Röhre (BRD), Dra L.Scheinvar (MEX), Dr.A. Szabo (H), Dr.I.P.Ting (USA), A.B.Wessels (RSA), Dr.H.G.Zimmermann (RSA)

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19. Congress: 31 March-13 April 1986 in SALTA (ARG)

Board: H.Sanchez-Mejorada (MEX, Pres.), Prof E.F.Anderson (USA, Vicepres.), D.R.Hunt (GB, Secr.), Dr.B.E.Leuenberger (BRD, Ass. Secr.), D.Supthut (CH, Treas.)
In memoriam Harry Hall (RSA, 15.2.1986)
New members: Mrs.S.Albanese (1), P.A.Asen (N), Prof F.Bellini (I), H.Hasegava (Japan), Dra.A.Hoffmann (CHI), F.Haugg (BRD), G.Joulin (F), F.Kattermann (USA), F.Klemer (BRD), W.Krahn (BRD), F.Lanssens (B), Dr.S.Linden (USA). J.R.McClurkin (USA), Dr.J.Madsen (DK), Dr.M.Matsui (Japan), R.Mottram (GB), V.I. Mrinskii (USSR), Dr.T.Neudecker (BRD), Dra.A.M.Orlando (I), Dr.C.Ostolaza (Peru), Y.Uda (Japan), Prof R.S.Wallace (USA), Prof B.Trujillo (Venezuela), J. Wehbe (MEX)

2. Inter-Congress: 16-19 September 1987 in SAN MARINO (USA)

In memoriam John Brooke (GB, 12.7.1987), Dr. Heimo Friedrich (A, 17.3.1987) Frank Horwood (USA, 22.3.1987), Jurg Rau (CH, 16.7.1987)
New members: N.Barotz (USA), P.F.Beeman (USA), S.Colombo (I), Dr. R.S.Felger (USA), C.D.Fleming (USA), E.G.Gay (USA), Dr. B.J.Hargreaves (USA), Dr. H.'t Hart (NL), D.Hollis-Pritchard (GB), F.A.Hutflesz (USA), S.Knee (GB), R.G.Latimer jr. (USA), Dr.B.MacBryde (USA), Prof P.Mahlberg (USA), R.May (USA), Dr. U.Meve (BRD), Dr.S.Porembski (BRD), Dr.R.Stanik (CZ), J.R.Woodbury (USA)

20. Congress: 1-17 June 1988 in HARARE (ZIM)

Board: Prof F.F.Anderson (USA, Pres.), Prof Dr.W.Barthlort (BRD, Vicepres.), Dr.D.R.Hunt (GB, Secr.), Dr.U.Eggli (CH, Ass. Secr.), D.Supthut (CH, Treas.)
In memoriam Dr. Hernando Sanchez-Mejorada (MEX, 11.3.1988), Dr. Maskiyo Matsui (Japan, 1988)
New members: Drs.C.Boele (NL), Dr.T.Bolliger (CH), Dr.A.Cattabriga (I), J.F.Daniel (USA), H.R.Fehlmann (CH), A.Fröhlich (CH), Dr.S.Liede (BRD), Dr.G.P.Nabhan (USA), W.J.Uebelmann (CH), Dr.S.A.Volgin (USSR)

3. Inter-Congress: 3-5 April 1989 in PALERMO (I)

In memoriam Prof Dr. Kurt Schreier (BRD, 1.11.1988), Dr.A.Szabo (H, 14.3.1989)
New members: Huntington Botanical Garden (USA, Inst.), Prof G.Barbera (I), A.Donikyan (CR), Dr.G.Esser (D), E.Fuhrmann (A), H.J.Handke (CAN), H.Kobayashi (Japan), Prof E.Lanfraco (Malta), Dr.J.Lüthy (CH), Dra.C.Perini (I), Dra.M.Ponce (Venezuela), Prof G.Rovida (I), Prof G.Sleiter (I), Prof G.F.Smith (RSA), F.Supplie (NL)

21. Congress: 30 July-3 August 1990 in Z&Uuuml;RICH (CH)

Board: Prof E.F.Anderson (USA, Pres.), Prof Dr.W.Barthlott (D, Vicepres.), Dr.D.R.Hunt (GB, Secr.), Dr.U.Eggli (CH, Ass. Secr.), D.Supthut (CR, Treas.)
In memoriam Franz Boszing (A, 1990), M.de Munter (B, 16.9.1989), W.J.Sterck (NL, 26.2.1990), A.P.Sokolow (USSR, 19.4.1990)
New members: Botanical Garten Dunedin (NZ, Inst.), Fundacion Charlos Faust (E, Inst.), Desert
Botanical Garden Phoenix (USA, Inst.) M.Bonilla Flores (MEX), J.A.Brisco (GB), R.Crook (GB), C.L.Hanson (USA), Dr.K.Hammer (D), L.G.Rernandez Sandoval (USA), H.Laub (CH), R.Logan (NZ), Dr. R.Nyffeler (CH), Prof Dr.H.Ohba (Japan), Mrs.P.Olwell (USA), D.A.H.Parker (GB), Dra.D.Zappi (GB), Prof Dr.G.Zizka (D)

4. Inter-Congress: 18-21 July 1991 in BONN (D)

New members: Botanical Garden Atlanta (USA, Inst.) Cactus and Succulent Society of New
South Wales (NZ, Inst.) Jardin Exotique Monaco (PM, Inst.) Palmengarten Frankfurt (D, Inst.)
Dr.A.Abela Medici (Malta), M.C.Abisai Garcia Mendoza (MEX), G.Ambrozy (A), A.de Barmon (F), M Chazaro Basanez (MEX), H.Cota-Sanchez (USA), A.Danesin (I), F.J.Delabarre (B), E.R.Dorsch (USA), C.Everson (USA), M.Grubenmann (CR), S.A.Hammer (USA), Dr.H.M.Hernandez Macias (MEX), E.Kirschnek (D), S.B.Krenz (Pol), F.Kummel (D), D.Metzing (D), C.P.Mifsud (Malta), K.Neirinck (B), D.Neumann (USA), W.Röösli (CH), Dr.W.Stuppy (D), I.Thwaites (GB), Mrs F.K.Wolf (A), R.Wolf (A), Dr.N.Zimmermann (D)

22. Congress: 5-10 April 1992 in PHOENIX (USA)
Board: Prof Dr.E.F.Anderson (USA, Pres.), Prof Dr.W.Barthlott (D, Vicepres.), Dr.D.R.Hunt (GB, Secr.), Dr.U.Eggli (CR, Ass. Secr.), D.Supthut (CR, Treas.)
In memoriam Dr. Willi Cullmann (D, 29.1.1992), Fred Hutflez (USA, 30.8.1991), Elo Mengarelli (I, 28.10.1991)
New members: Deutsche Kakteen-Gesellschaft DKG (D, Inst.) Fundacao Gaia (Brazil, Inst.)
New York Botanical Garden (USA, Inst.), S.Arias Montes (MEX), Dr.R.Bauer (D), Dr.T.L.Burgess (USA), R.C.Dedeyne (B), W.A.Fitz Maurice (MEX), Prof Dr.A.C.Gibson (USA), A.W.Rofer (CH), Dr.G.James (USA), Prof Dr.N.Jurgens (D), M.Lacoste (CH), I.H.Lawrie (GB), A.N.Lima (USA), G.W.Lyons (USA), Dr.R.Miller (USA), G.Moeller-Villar (MEX), Dr.K.H.Senghas (D), Dr.J.Thiede (D), B.Ullrich (D)

5. Intercongress: 24-31 March 1993 in MALTA

In memoriam Lloyd Brinson (USA, 29.9.1992), Dr. Christian H.Friedrich (D, 6.10.1992), Walter Haage (D, 22.4.1992), Juan Panella Bonastre (F, 3.8.1992), Fernando Riviere de Caralt (F, 12.7.1992)
New members: GesellschafT Österreichischer Kakteenfreunde GÖK (A, Inst.), Karoo National Botanical Gardens (RSA, Inst.), Schweizerische Kakteengesellschaft SKG (CR, Inst.) G.B.& F.A.Bello (USA), Dr.M.A.Chiong (CAN), H.van Donkelaar (NL), R.van Donkelaar (NL), W.Glover (USA), H.Mays (GB), J.Munro-Cape (Can), 1.Rabenda (CAN), M.Teissier (F), Dr. D. A. Tufenkian (USA), G.R.Williams (USA)

23. Congress: 15-21 August 1994 in WAGENINGEN (NL)

Board: Prof Dr.H.-D.Ihlenfeldt (D, Pres.), S.Carter-Holmes (GB, Vicepres.), Prof.Dr.F.F.Anderson (USA, Secr.), Dr.U.Eggli (CH, Ass. Secr.), D.Supthut (CR, Treas.)
In memoriam Georg Graf Ambrozy (A, 8.5.1994), Dr.Lyman Benson (USA, 12.7.1993), Dr.Howard S.Gentry (USA, 1.4.1993), David B.Grigsby (USA, 15.4.1994), Clarence K.Horich (Costa-Rica, 1.3.1994), Marcel Kroenlein (PM, 5.8.1994), Daniel Neumann (USA, 1993), Dr.Bohumil Schutz (CZ, 1.7.1993)
New members: Botanischer Garten Munchen (D, Inst.), National Botanical Research Institute Namibia, Inst.) Zürcher Kakteen-Gesellschaft (CH, Inst.), B.von Arx (CH), P.-M.Braso Pujol (F), P.V.Bruyns (RSA), Dr.B.Descoings (F), Dr.F.Gama Barletti (MEX), G.S.Hinton (MEX), F. Hochstätter (D), Dr.M.L.Hjertson (S), Dr.P.Inglese (I), S.Koeltz (D), N.Martinez (USA), Dr.R.Kraus (D), Dr.I.E.Sinev (USSR), M.Uhlig (D)

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6. Inter-Congress: 11-17 September 1995 in SAN MIGUEL DE ALLENDE (MEX)

In memoriam Michael Haude (D, 5.11.1994)
New members: University of Turku, Botanical Garden (FIN, Inst.), Mrs S.Barker-Fricker (GB), I.Breuer (D), W.J.Fischer (D), J.T.Gauci (Malta), Dr.G.Haslinger (D), Dr.H.A.Jonkers (GB), Dr.D.Masson (CH), J.K.H.Rothe (D), R.Wahl (D)

24. Congress: 9-14 September 1996 in BOLOGNA (I)

Board: Prof.Dr.H.-D.Ihlenfeldt (D, Pres.), Prof.Dr.Gideon Smith (RSA, Vicepres.), Prof.F.F.Anderson (USA, Secr.), Dr.J.Thiede (D, Ass. Secr.), D.Supthut (CR, Tres.)
In memoriam Norman H.Boke (USA, 1996), Sandro Colombo (I, 25.10.1995), Prof.John D.Donald (GB, 2.1.1996), Richard G.Latimer Jr. (USA, 1995), Larry Leach (RSA, 18.7.1996), L.M.Mason (GB), Dr.Stanislaw Miklaszewski (Pol, 8.11.1995)
New members: British Cactus and Succulent Society BCSS (GB, Inst.), Succulenta (NL, Inst.), R.Ariu (I), H.Berk (D), H.Chi-King Mak (GB), Dr.R.F.Dicht (CR), Dr.P.F. Downs (GB), Dr.L.Gallo (I). Dra S.A.Ghazanfar (Oman), Dr.A.W.Hoffman (NL), K.Kinebuchi (Japan), Dr. A.W.Mace (GB), Mrs.I.M.Niesler (D), Prof.N.Rebmann (F), Dr. R.C. Römer (D), Dr.J.-M.Solichon (PM)

7. Inter-Congress: 25-29 September 1997 in SAN MARINO (USA)

In memoriam Werner Reppenhagen (A, 12.11.1996), N.B.Wilbraham (GB, 16.5.1997)
New members: zoological and Botanical Garden Pizen (CZ, Inst.), Dr.R.J.Chinnock (Australia), M.J.Cracraft (USA), H.Dopp (D), Dr.A.Flores (USA), P.I.Forster (Australia), Prof.Dr.H.Fürsch (D), N.Gerloff (D), K.Gilmer (D), D.Herbel (D), A.Hofacker (D), H.Nagl (A), W.Papsch (A), Dr.J.P.Rebman (USA), Mrs.M.Tiedemann (D), Mrs.U.Schmiedel (D), Prof.Dr.H.Uhlarz (D)

25. Congress: 31 August-4 September 1998 in CAPE TOWN (RSA)

Board: Prof.Dr.G.Smith (RSA, Pres.), Prof.Dr.Focke Albers (D, VicePres.), Prof.Dr.James D.Mauseth (USA, Secr.), Dr.J.-M.Chalet (CH, Ass. Secr.), D.Supthut (CH, Treas.), Dr.R.Nyffeler (USA, Bull. Edit.)
In memoriam Charles Glass (Mex, 23.2.1998), David Hardy (RSA, 31.5.1998), A.Lima (USA)
New members: Assocacion International des Amateurs de Plantes Succulentes (AIAPS, Inst.), M.Delugin (F), L.G.Hernandez Sandoval (MEX), Dr.R.W.Kohlschreiber (USA), L.J.Miller (USA), Dr.P.Parolin (D), R.Stephenson (GB), B.Solano Comacho (MEX), Dra.R.Galvan Villanueva (MEX)

26. Congress: 19 - 24 march 2000 in ZÜRICH (CH)

Board: Prof. Dr. G. Smith (RSA, Pres.), Prof. Dr. Focke Albers (D, VicePres.), Prof. Dr. James D. Mauseth (USA, Secr.), Dr. J.-M.Chalet (CH, Ass. Secr.), D.Supthut (CH, Treas.), Dr. R. Nyffeler (USA, Bull. Edit.)
In memoriam F. J. Barker Fricker(UK), A. Fröhlich (CH), C. Innes (UK)
New members: Boris Schlumberger (D), Alessandro Mosco (I), Matt H. Buys (RSA), Victor Gapon (RU), Sven Bernhardt (D), V. Byalt (RU), Irina Vassiljeva (RU), Prof. Dr. Peter Lechner (A) Dr. M. Lowry (UK), Evgenij Erokhin (Ukraine), Dr. Thomas Weigelin (CH)

27. Congress: 7 - 13 April 2002 in PHOENIX, AZ (USA)

Board: Prof. Dr. R. S. Wallace (USA, Pres.), Prof. Dr. S. Porembski (D, VicePres.), Dr. W. Stuppy (UK, Secretary), Dr. J.-M. Chalet (CH, Ass. Secr.), Dr. T. Bolliger (CH, Treasurer), Dr. J. Thiede (D, Bull. Edit.)
In memoriam W. Rauh, H. 't Hart, L. Mitich, P. Locuty, E.F. Anderson, K. H. Grantham, F. Kraehenbuehl, H. Bravo-Hollis, H.J. Hilgert
New members: Dr. Jerzy Wozniak (PL), Dr. med. A. Studer

28. Congress: 31 May – 5 June 2004 in HAMBURG (D)

Board: Prof. Dr. R.S. Wallace (USA, Pres.), Prof. Dr. S. Porembski (D, VicePres.), Dr. M. Hjertson (SW, Secretary), Dr. J.-M. Chalet (CH, Ass. Secr.), Dr. T. Bolliger (CH, Treasurer), Dr. A. Cattabriga (I, Bull. Edit.)
In memoriam H. M. Roan, H. H. Berk, W. W. Fischer, R. Hepting, P. Kern, E. Priezsintz.
New members: R. T. B. Luna (MEX), Dr. C. A. Butterworth (GB), Dr. A. Guiggi (I), Dr. R. H. Webb (USA), K. L. G. Cabello (MEX), C. G. Hinostrosa (MEX), Dr. J. Ettelt (D)

29 Congress: 17 – 20 September 2006 in ZÜRICH (CH)

Board: Prof. Dr. L.E. Newton (GB, Pres.), Dr. R. Nyffeler (CH, VicePres.), Dr. D. H. Hunt (GB, Secretary), Dr. J.-M. Chalet (CH, Ass. Secr.), Dr. T. Bolliger (CH, Treasurer)
In memoriam R. Römer
New members: G. Meier (CH), H. Walter (D), T. Wyka (PL)

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Honorary Members of IOS

Recipients of the Cactus d'Or, sponsored by City Council of Monaco

1978: Prof.Dr.Werner Rauh (BRD)
1980: Prof. Dr. Helia Bravo-Hollis (MEX)
1982: Gordon Rowley (GB)
1984: Prof. Lyman Benson (USA)
1986: no Cactus d'Or awarded
1988: Larry Leach (RSA)
1990: Walter Haage (D)
1992: Dr. George Lindsay (USA)
1994: Prof. Dr. Hans-Dieter Ihlenfeldt (D)
1996: Mrs. Susan Carter-Holmes (GB)
1998: Prof. Dr. Edward F.Anderson (USA)
2000: Dieter Supthut (CH)
2002: Prof. Dr. Wilhelm Barthlott (D)
2004: Prof. Dr. Gideon Smith (RSA)
2006: Dr. David R. Hunt (GB)

Celebration of the first Cactus d'Or awarded to Prof. Dr. W. Rauh at the Jardin Exotique in Monte Carlo. In the center the late Princess Grace. From left to right: D. Supthut, H. Friedrich, W. Rauh, Princess Grace, M. Kroenlein, H. Sanchez-Mejorada, J. D. Donald.

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