This is the last version of the IOS website from 2009-2014 (deactivated)
International Organization for Succulent Plant Study
A Brief Chronicle of IOS
Congresses, Inter-Congresses, Board-Members, Members Passed Away, and New Members
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Honorary Members of IOS
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 (AT), Dr. W. Cullmann (DE), Prof. Dr. A. U. Däniker (CH), E. Gerber (CH), E. Glauser (CH), Dr. W. G. Herter (CH), Prof. Dr. J. A. Huber (DE), H. Jacobsen (DE), J. A. Janse (NL), W. Kesselring (DE), Hans Krainz (CH), J. M. Marnier‑Lapostolle (FR), G. Moll (CH), J. Panella-Bonastre (ES) Prof. D. Regel (DE), H. M. Roan (GB), Prof. Dr. J. Schlittler (CH), Prof. Dr. G. Schwantes (DE), A. J. A. Uitewaal (NL), L. F. Vatrican (MC), Prof. Dr. F. Werdermann (DE)
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. a. Janse, H. M. Roan, Dr. W. Cullmann, H. Krainz, W. Kesselring, E. Glauser, H. Jacobsen, Prof. Dr. G. Schwantes, J. Marnier-Lapostolle, E. Gerber, L. F. Vatrican (Photo: A. J. A. Uitewaal)
2nd Congress: 21-24 September 1953 in MONACO (MC)
Board: 2 Secretaries: Hans Krainz (CH), H. M. Roan (GB)
New members: Dr. P. R. O. Bally (CH), Prof. Dra. H. Bravo Hollis (MX),
R. S. Byles (GB), Prof. M. Cárdenas (BO), Prof. C. Distefano (IT), Prof. J. Donald (GB),
L. Fuaux (AU), R. Gräser (DE), Prof. Dr. A. Guillaumin (FR), H. Hall (ZA), H. Herre (ZA),
V. Higgins (GB), P. C. Hutchison (US), B. Kurtz (US), F. Riviere de Caralt (ES), G. Rowley (GB),
Dr. A. Tischer (DE)
2nd IOS Congress 1953 in Monaco
3rd Congress: 5-9 September 1955 in LONDON (GB))
Board: 2 Secretaries: L. F. Vatrican (MC), F. Riviere de Caralt (FR)
New members: Dr. L. Benson (US), Dr. H. W. de Boer (NL).
Prof. N. H. Boke (US), Dra. H. L. M. Bolus (ZA), Dr. B. K. Boom (NL),
Dr. R. Bouillène (BE), J. R. Brown (US), A. Dr. Castellanos (BO), Dr. B. U. Clover (US),
Dr. R. T. Craig (GB), L. Cutak (US), Dr. P. A. Florschütz,
S. E. Haselton (US), M. Kimnach (US), Dr. G. Lindsay (US), Prof. Dr. J. Millot (FR),
Dr. R. Moran (US), Dr. N. Remsky (US), H. Oku (JP), B. R. Sventenius (BE),
Dr. Ch. Uhl (US), W. Wessner (DE), Prof. I. L. Wiggins (US)
3rd 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)
4th Congress: 26 - 30 August 1957 in DEN HAAG (NL)
Board: 2 Secretaries: L. F. Vatrican (MC), F. Riviere de Caralt (ES)
New members: A. Bertrand (FR), Prof. Dr. V. Camarrone (IT), Dr. E. Eichenberger (CH), Prof. Dr. P. Meletti (IT)
5th Congress: 31 August-5 September 1959 in KIEL (DE)
Board: 2 Secretaries: L. F. Vatrican (MC), F. Riviere de Caralt (ES)
In memoriam: Prof Dr. Erich Werdermann (DE, 19.4.1959)
New members: Prof. Dr. W. Rauh (DE)
6th Congress: 5-8 June 1961 in BARCELONA (ES)
Board: L. F. Vatrican (MC, Pres.), Dr. B. K. Boom (NL, Secr.), H. Krainz (CH, Treas.)
In memoriam: Prof. Dr. Gustav Schwantes (DE, 1960)
New members: M. Bonefaas (NL), W. Haage (GDR), Prof. Dr. H.-D. Ihlenfeldt (DE), M. Karmazin (CZ),
M. Kroenlein (MC), F. Ritter (DE), Prof. Dr. H. Straka (DE), L. Schattat (DE)
6th 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)
7th Congress: 26-29 August 1963 in WIEN (AT)
Board: L. F. Vatrican (MC, Pres.), B. K. Boom (NL, Secr.), H. Krainz (CH, Treas.)
In memoriam: M. Oku (JP, 1963), Dr. F. Rappa (IT), B. Shurly (GB, 1963), A. J. A. Uitewaal (NL, 29.3.1963)
New members: H. Balzer (DE), Dr. F. Y. Dawson (US), J. Doinet (BE),
Dr. J. W. Dodson (US), G. Frank (AT), W. Fricke (DE), Dr. H. Friedrich (AT),
Dr. C. Gasperini (IT), Dr. H. J. Hilgert (BRE)), R. Hösslinger (DE),
J. C. van Keppel (NL), Dr. L. Kladiwa (AT), S. P. J. Konder (HU),
Dr. L. E. Newton (GB), F. Pazout (CZ), G. Pecheret (FR), Dr. B. Priessnitz (AT),
Y. Ryutanji (JP), Dr. B. Schütz (CZ), Dr. A. Simo (AT), A. d'Urso (IT),
Dr. J. Valnicek (CZ), B. A. Wouters (NL)
8th Congress: 28 April-2 May 1965 in CATANIA (IT)
Board: L. F. Vatrican (MC, 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 (FR), F. Guldemont (BE), Dr. H. Hecht (DE),
Dr. W. Hoffmann (DE), D. R. Hunt (GB), T. Kaku (JP), L. C. Leach (ZA), H. Rose (FR)
9th Congress: 1-7 May 1967 in BEAULIEU (FR)
Board: L. F. Vatrican (MC, Pres.), Dr. W. Cullmann (DE, Vicepres.),
B. K. Boom (NL, Secr.), H. Krainz (CH, Treas.)
In memoriam: B. J. Dawson (US, 1966), W. Kesselring (DE, 1966)
New members: W. Andreae (DE), W. de Cocker (BE), Dr. H. C. Friedrich (DE),
J. Gastaud (FR), C. Glass (US), Dr. R. Hamet (FR), Dr. H. Heine (FR), P. Kern (HU),
B. Lamb and E. Lamb (GB), Dr. K. Mortimer (GB), G. Pallanca (IT), W. J. M. Sterk (NL),
D. J. van Vliet (NL)
10th Congress: 26-31 May 1969 in LIEGE (BE)
Board: L. F. Vatrican (MC, Pres.), Dr. W. Cullmann (DE, Vicepres.), Dr. B. K. Boom (NL, Secr.),
R. Hösslinger (DE, Treas.)
In memoriam: Prof. A. Castellanos (Bolivia), Dr. J. Valnicek (CZ, 4.5.1967)
New members: Dra. S. Dupont (FR), R. A. Foster (US), C. Innes (GB), J. Lavranos (ZA),
C. A. E. Parr (GB), W. Rausch (AT), Prof. Dr. K. Schreier (DE)
11th Congress: 1-4 June 1971 in HEIDELBERG (DE)
Board: L. F. Vatrican (MC, Pres.), Dr. H. Friedrich (AT, Secr.), R. Hösslinger (DE, Treas.)
In memoriam: Wilhelm Andreae (DE, 7.5.1970), Dr. H. W. de Boer (NL, 14.3.1970),
Prof. Dra. Luisa Bolus (ZA, 5.4.1970), Dr. B. Buchmann-Felber (CH, 14.12.1969)
New members: F. Boszing (AT), Prof. D. T. Cole (ZA), A. Coppens (BE), Prof. Dr. L. Diers (DE),
B. Fearn (GB), Z. Fleischer (CZ), Dr. H. Hartmann (DE), F. K. Horwood (GB), F. Krähenbühl (CH), Dr. Z. Mezaros (HU),
F. Noltee (NL), M. Voldan (CZ), C. Williams (GB)
11th 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)
12th Congress: 2-9 September 1973 in READING (GB)
Board: L. F. Vatrican (MC, Pres.), Dr. W. Cullmann (DE, Vicepres.), Dr. H. Friedrich (AT, Secr.),
R. Hösslinger (DE, Treas.)
In memoriam: R. Boullene (BE), Prof. M. Cárdenas (Bolivia, 14.2.1973),
L. Cutak (US, 18.1.1973),
Dr. Raymond Hamet (FR, 1972), Dr. B. R. Sventenius (BE)
New members: A. J. Brederoo (NL), W. H. Barle (US), R. Ginns (GB), D. R. Hunt (GB, reentry),
A. B. Lau (MX), W. F. Maddams (GB), L. M. Mason (GB), K. H. Graham (GB), P. Kern (HU), J. W. Pilbeam (GB), B. W. Putnam (GB),
G. Schatzl (AT), A. P. Sokolow (USSR), S. W. Young (GB)
13th Congress: 10-16 September 1974 in SANTA BARBARA (US)
Board: L. F. Vatrican (MC, Pres.), Dr. W. Cullmann (DE, Vicepres.),
Dr. H. Friedrich (AT, Secr.),
R. Hösslinger (DE, Treas.)
In memoriam: Prof A. Guillaumin (FR, 1973), Prof. J. A. Huber (DE, 1973)
New members: Prof. B. F. Anderson (US), J. B. Bleck (US), M. C. Bleck (US),
Dr. P. E. Brandham (GB), J. Brooke (GB), J. A. Hart (GB), Dr. R. B. Ivimey-Cook (GB), Mrs. Z. Kabiesz (PL),
G. Lyons (US), Prof. B. Matuda (MX), H. Sanchez-Mejorada (MX), D. Supthut (CH), N. B. Willbraham (GB)
14th Congress: 6-11 September 1976 in BARCELONA (ES)
Board: Prof. J. Donald (GB, Pres.), Prof. Dr. W. Rauh (DE, Vicepres.),
Dr. H. Friedrich (AT, 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 (FR, 18.2.1976),
Dr. P. A. Florschütz (NL, 27.5.1976), J. Konder (HU, 31.7.1976), F. Pazout (CZ, 1976)
New members: Prof J. F. Ballester-Olmos (BE), Prof Dr. W. Barthlott (DE), Dr. D. Bramwell (BE),
L. Brinson (US), L. Carruthers (GB), Dr. J. Drawert (GDR), M. G. Gilbert (GB),
L. Glass (GB), D. B. Grigsby (US), H. Hirao (JP), S. Holmes-Carter (GB), Prof A. T. Hunziker (AR),
Dr. R. Kiesling (AR), Dr. B. Leuenberger (CH), J. Iliff (GB), G. G. Leighton-Boyce (GB),
Dr. P. Locuty (CH), Dr. J. Meyran-Garcia (MX), Dr. S. Miklaszewski (PL),
Prof L. W. Mitich (US), Dr.M.Palmas (IT), Dr. H. H. Poppendieck (DE), Dr. A. Rabson (ZA),
G. J. Swales (GB), Dr. D. Wolsky (USSR), R. Zahra (MT), B. Zecher (AT)
15th Congress: 14-19 May 1978 in MONTE CARLO (MC)
Board: Prof. J. Donald (GB, Pres.), Prof Dr. W. Rauh (DE, Vicepres.), Dr. H. Friedrich (AT, Secr.), D. R. Hunt (GB, Ass.Secr.), D. Supthut (CH, Treas.)
In memoriam: J. R. Brown (US, 21.9.1977), A. Coppens (BE), R. Ginns (GB, 26.12.1976), Robert Graser (DE, 5.9.1977), J. A. Janse (NL, 15.3.1977), S. P. J. Konder (HU), Prof F. Matuda (MX, 12.2.1978)
New members: B. R. Adams (GB), M. B. Bayer (ZA),
P. G. Bourdoux (BE), A. Camboulive (FR), L. F. Davis (US),
Y. Delange (FR), Dr. V. Habermann (CZ), R. Hebding (FR),
M. J. Kimberley (Rhodesia),
W. C. Keen (GB), L. Lippold (US), Dr. L. Nemes (HU),
W. Reppenhagen (AT), D. Szabo (HU), R. Vasquez (BO)
15th IOS Congress 1978 in Monte Carlo. Celebration of the first Cactus d'Or awarded to Prof. Dr. W. Rauh at the Jardin Exotique. From left to right: D. Supthut, Dr. Heimo Friedrich, Prof. Dr. Werner Rauh, Princess Grace, Marcel Kroenlein (Director of Jardin Exotique), Dr. Hernando Sanchez-Mejorada, Prof. John Donald.
16th Congress: 23-29 March 1980 in MEXICO CITY (MX)
Board: Prof. J. D. Donald (GB, Pres.), Prof. Dr. W. Rauh (DE, Vicepres.), L. C. Brinson (US, Secr.), Dr. H. Friedrich (AT, Ass. Secr.), D. Supthut (CH, Treas.)
In memoriam: Peter R. O. Bally (KE, 26.7.1980), H. Bonefaas (NL, 1980), Dr. B. K. Boom (NL, 21.3.1980), Prof Dr. Franz Buxbaum (AT, 7.2.1979), A. Camboulive (FR, 18.5.1979), Z. Fleischer (CZ, 24.7.1978), Dr. H. Herre (ZA, 16.1.1979), Dr. Hermann Jacobsen (DE, 19.8.1978)
New members: Dr.G. S. Barad (US), Dr. Z. Debreczy (HU), Prof Dr. B. Filer (CH), O. F. Ferrari (AR), D. S. Hardy (ZA), M. Haude (GDR), H. Koop (AT), F. Losenicky (AT), Dr. R. F. Monroe (US), K. C. Newland (US), J. Pina‑Lujan (MX), G. Sydow (DK), N. P. Taylor (GB), W. J. Tjaden (GB), Prof Dr. D. J. Willert (DE)
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Three views of the 16th IOS Congress in Mexico City (Photographs: top left J. Meyren; top right and bottom D.Supthut)
17th Congress: 23-27 August 1982 in WIEN (AT)
Board: Prof J. D. Donald (GB, Pres.), Prof Dr. W. Rauh (DE), Vicepres.), L. C. Brinson (US, Secr.), Dr. H. Friedrich (AT, Ass. Secr.), D. Supthut (CH, Treas.)
In memoriam: Hans Krainz (CH, 30.5.1980)
New members: Prof Dr. F. Albers (DE), Dr. H. Antesberger (AT), K. Augustin (AT), Dr. H. F. Glen (ZA),
Mrs. I. Hoffmann (US), Dr. B. Hoffmann (GDR), D. Hönig (DE),
I. Joschtel (AT), M. de Munter (BE), J. Rauh (CH), Dr. M. Sajeva, (IT), Dr. H. Steif (AT), H. Till (AT), G. Unger (AT)
18th Congress: 10-16 June 1984 in FRANKFURT (DE)
Board: H. Sanchez-Mejorada (MX, Pres.), Prof E. F. Anderson (US, Vicepres.), Dr. D. R. Hunt (GB, Secr.),
Dr. B. Leuenberger (DE, Ass. Secr.), D. Supthut (CH, Treas.)
In memoriam: Jan van Keppel (NL, 13.2.1983), Willi Wessner (DE, 10.5.1983)
New members: G. Anderson (DE), Dr. P. Braun (DE), Dr. J.-M. Chalet (CH), Dr. U. Eggli (CH),
Dr. G. R. W. Frank (DE), Dr. W. Glätzle (AT), R. Havlicek (CZ), K. Hesselbarth (DE), E. van Jaarsveld (ZA),
M. A. T. Johnson (GB), Dr. D. L. I. Koutnik (US), Mrs. S. Oldfield (GB), Dr. G. Schoser (DE)
1st Inter-Congress: 20-23 July 1985 in ZÜRICH (CH)
In memoriam: Paul Bourdeaux (FR, 10.10.1985), Hubert Earle (US, 2.12.1984), D. Szabo (HU, 2.8.1984)
New members: S. Brack (US), H. Britsch (US), M. O. Brutsch (ZA),
K. F. Dutine (DE), Dr. T. Engel (DE), Dr. L. F. Groen (NL),
Prof Dr. G. Gröner (DE), K. D. Heil (US), R. Lafon (US),
Prof J. Mauseth (US), F. Meyer (DE), F. Mengarelli (IT), Dr. M. Meregalli (IT),
P. J. Michel (GB), Dr. R. Moore (US), Prof P. S. Nobel (US),
V. Pauly (ES), R. Pillar (DE), Prof Dr. D. J. Pinkava (US),
Dr. W. Röhre (DE), Dra L. Scheinvar (MX), Dr. A. Szabo (HU),
Dr. I. P. Ting (US), A. B. Wessels (ZA), Dr. H. G. Zimmermann (ZA)
19th Congress: 31 March-13 April 1986 in SALTA (AR)
Board: H. Sanchez-Mejorada (MX, Pres.), Prof E. F. Anderson (US, Vicepres.), D. R. Hunt (GB, Secr.),
Dr. B. E. Leuenberger (DE), Ass. Secr.), D. Supthut (CH, Treas.)
In memoriam: Harry Hall (ZA, 15.2.1986)
New members: Mrs. S. Albanese (1), P. A. Asen (NO), Prof F.Bellini (IT),
H. Hasegava (JP), Dra. A. Hoffmann (CL), F. Haugg (DE), G. Joulin (FR),
F. Kattermann (US), F. Klemer (DE), W. Krahn (DE), F. Lanssens (BE),
Dr. S. Linden (US), J. R. McClurkin (US), Dr. J. Madsen (DK), Dr. M. Matsui (JP),
R. Mottram (GB), V. I. Mrinskii (USSR), Dr. T. Neudecker (DE),
Dra. A. M. Orlando (IT), Dr. C. Ostolaza (PE), Y. Uda (JP),
Prof R. S. Wallace (US), Prof B. Trujillo (VE), J. Wehbe (MX)
2nd Inter-Congress: 16-19 September 1987 in SAN MARINO (US)
In memoriam: John Brooke (GB, 12.7.1987), Dr. Heimo Friedrich (AT, 17.3.1987),
Frank Horwood (US, 22.3.1987), Jurg Rau (CH, 16.7.1987)
New members: N. Barotz (US), P. F. Beeman (US),
S. Colombo (IT), Dr. R. S. Felger (US), C. D. Fleming (US),
E. G. Gay (US), Dr. B. J. Hargreaves (US), Dr. H. 't Hart (NL), D. Hollis-Pritchard (GB),
F. A. Hutflesz (US), S. Knee (GB), R. G. Latimer jr. (US), Dr. B. MacBryde (US),
Prof P. Mahlberg (US), R. May (US), Dr. U. Meve (DE), Dr. S. Porembski (DE), Dr. R. Stanik (CZ),
J. R. Woodbury (US)
20th Congress: 1-17 June 1988 in HARARE (ZW)
Board: Prof F. F. Anderson (US, Pres.), Prof Dr. W. Barthlort (DE), Vicepres.), Dr. D. R. Hunt (GB, Secr.),
Dr. U. Eggli (CH, Ass. Secr.), D. Supthut (CH, Treas.)
In memoriam: Dr. Hernando Sanchez-Mejorada (MX, 11.3.1988), Dr. Maskiyo Matsui (JP, 1988)
New members: Drs. C. Boele (NL), Dr. T. Bolliger (CH), Dr. A. Cattabriga (IT),
J. F. Daniel (US), H. R. Fehlmann (CH), A. Fröhlich (CH), Dr. S. Liede (DE),
Dr. G. P. Nabhan (US), W. J. Uebelmann (CH), Dr. S. A. Volgin (USSR)
3rd Inter-Congress: 3-5 April 1989 in PALERMO (IT)
In memoriam: Prof Dr. Kurt Schreier (DE), 1.11.1988), Dr. A. Szabo (HU, 14.3.1989)
New members: Huntington Botanical Garden (US, Inst.), Prof G. Barbera (IT), A. Donikyan (CH),
Dr. G. Esser (DE), E. Fuhrmann (AT), H. J. Handke (CA), H. Kobayashi (JP), Prof E. Lanfranco (MT),
Dr. J. Lüthy (CH), Dra. C. Perini (IT), Dra. M. Ponce (VE), Prof G. Rovida (IT), Prof G. Sleiter (IT),
Prof G. F. Smith (ZA), F. Supplie (NL)
21st Congress: 30 July-3 August 1990 in ZÜRICH (CH)
Board: Prof E. F. Anderson (US, Pres.), Prof Dr. W. Barthlott (DE, Vicepres.), Dr. D. R. Hunt (GB, Secr.),
Dr. U. Eggli (CH, Ass. Secr.), D. Supthut (CH, Treas.)
In memoriam: Franz Boszing (AT, 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.), Desert Botanical Garden Phoenix (US, Inst.),
Fundacion Charlos Faust (E, Inst.), M. Bonilla Flores (MX), J. A. Brisco (GB), R. Crook (GB), C. L. Hanson (US),
Dr. K. Hammer (DE), L. G. Fernandez Sandoval (US), H. Laub (CH), R. Logan (NZ), Dr. R. Nyffeler (CH),
Prof Dr. H. Ohba (JP), Mrs. P. Olwell (US), D. A. H. Parker (GB), Dra. D. Zappi (BR), Prof Dr. G. Zizka (DE)
4th Inter-Congress: 18-21 July 1991 in BONN (DE)
New members: Botanical Garden Atlanta (US, Inst.), Jardin Exotique Monaco (PM, Inst.),
Cactus and Succulent Society of New South Wales (NZ, Inst.), Palmengarten Frankfurt (DE, Inst.)
Dr. A. Abela Medici (MT), M. C. Abisai Garcia Mendoza (MX), G. Ambrozy (AT), A. de Barmon (FR),
M. Chazaro Basanez (MX), H. Cota-Sanchez (US), A. Danesin (IT), F. J. Delabarre (BE), E. R. Dorsch (US),
C. Everson (US), M. Grubenmann (CH), S. A. Hammer (US), Dr. H. M. Hernandez Macias (MX), E. Kirschnek (DE), S. B. Krenz (PL), F. Kummel (DE), D. Metzing (DE), C. P. Mifsud (MT), K. Neirinck (BE), D. Neumann (US),
C. P. MifsudW. Röösli (CH), Dr. W. Stuppy (DE), I. Thwaites (GB), Mrs F. K. Wolf (AT),
R. Wolf (AT), Dr. N. Zimmermann (DE)
22nd Congress: 5-10 April 1992 in PHOENIX (US)
Board: Prof Dr. E. F. Anderson (US, Pres.), Prof Dr. W. Barthlott (DE, Vicepres.), Dr. D. R. Hunt (GB, Secr.),
Dr. U. Eggli (CH, Ass. Secr.), D. Supthut (CH, Treas.)
In memoriam: Dr. Willi Cullmann (DE, 29.1.1992), Fred Hutflez (US, 30.8.1991), Elo Mengarelli (IT, 28.10.1991)
New members: Deutsche Kakteen-Gesellschaft DKG (DE, Inst.), New York Botanical Garden (US, Inst.), Fundacao Gaia (BR, Inst.), S. Arias Montes (MX), Dr. R. Bauer (DE), Dr. T. L. Burgess (US), R. C. Dedeyne (BE),
W. A. Fitz Maurice (MX), Prof Dr. A. C. Gibson (US), A. W. Rofer (CH), Dr. G. James (US), Prof Dr. N. Jurgens (DE), M. Lacoste (CH), I. H. Lawrie (GB), A. N. Lima (US), G. W. Lyons (US), Dr. R. Miller (US), G. Moeller-Villar (MX),
Dr. K. H. Senghas (DE), Dr. J. Thiede (DE), B. Ullrich (DE)
5th Inter-Congress: 24-31 March 1993 in MALTA
In memoriam: Lloyd Brinson (US, 29.9.1992), Dr. Christian H. Friedrich (DE, 6.10.1992),
Walter Haage (DE, 22.4.1992), Juan Panella Bonastre (FR, 3.8.1992),
Fernando Riviere de Caralt (FR, 12.7.1992)
New members: Gesellschaft Österreichischer Kakteenfreunde GÖK (AT, Inst.),
Karoo National Botanical Gardens (ZA, Inst.), Schweizerische Kakteengesellschaft SKG (CH, Inst.)
G.B.& F. A. Bello (US), Dr. M. A. Chiong (CA), H. van Donkelaar (NL), R. van Donkelaar (NL), W. Glover (US),
H. Mays (GB), J. Munro-Cape (CA), I. Rabenda (CA), M. Teissier (FR), Dr. D. A. Tufenkian (US), G. R. Williams (US)
23rd Congress: 15-21 August 1994 in WAGENINGEN (NL)
Board: Prof Dr. H.-D. Ihlenfeldt (DE, Pres.), S. Carter-Holmes (GB, Vicepres.), Prof.Dr. F. F. Anderson (US, Secr.), Dr. U. Eggli (CH, Ass. Secr.), D. Supthut (CH, Treas.)
In memoriam: Georg Graf Ambrozy (AT, 8.5.1994), Dr. Lyman Benson (US, 12.7.1993), Dr. Howard S. Gentry (US, 1.4.1993), David B. Grigsby (US, 15.4.1994), Clarence K. Horich (CH, 1.3.1994), Marcel Kroenlein (PM, 5.8.1994), Daniel Neumann (US, 1993), Dr.Bohumil Schutz (CZ, 1.7.1993)
New members: Botanischer Garten Munchen (DE, Inst.), National Botanical Research Institute Namibia, (Inst.), Zürcher Kakteen-Gesellschaft (CH, Inst.), B. von Arx (CH), P-M. Braso Pujol (FR), P. V. Bruyns (ZA),
Dr. B. Descoings (FR), Dr. F. Gama Barletti (MX), G. S. Hinton (MX), F. Hochstätter (DE), Dr. M. L. Hjertson (S),
Dr. P. Inglese (IT), S. Koeltz (DE), N. Martinez (US), Dr. R. Kraus (DE), Dr. I. E. Sinev (USSR), M. Uhlig (DE)
6th Inter-Congress: 11-17 September 1995 in SAN MIGUEL DE ALLENDE (MX)
In memoriam: Michael Haude (DE, 5.11.1994)
New members: University of Turku, Botanical Garden (FI, Inst.), Mrs S.Barker-Fricker (GB), I. Breuer (DE),
W. J. Fischer (DE), J. T. Gauci (MT), Dr. G. Haslinger (DE), Dr. H. A. Jonkers (GB), Dr. D. Masson (CH),
J. K. H. Rothe (DE), R. Wahl (DE)
24th Congress: 9-14 September 1996 in BOLOGNA (IT)
Board: Prof. Dr. H.-D. Ihlenfeldt (DE, Pres.), Prof. Dr. Gideon Smith (ZA, Vicepres.), Prof. F. F. Anderson (US, Secr.),
Dr. J. Thiede (DE, Ass. Secr.), D. Supthut (CH, Treas.)
In memoriam: Norman H. Boke (US, 1996), Sandro Colombo (IT, 25.10.1995), Prof. John D. Donald (GB, 2.1.1996),
Richard G. Latimer Jr. (US, 1995), Larry Leach (ZA, 18.7.1996), L. M. Mason (GB),
Dr. Stanislaw Miklaszewski (PL, 8.11.1995)
New members: British Cactus and Succulent Society BCSS (GB, Inst.), Succulenta (NL, Inst.), R. Ariu (IT),
H. Berk (DE), H. Chi-King Mak (GB), Dr. R. F. Dicht (CH), Dr. P. F. Downs (GB), Dr. L. Gallo (IT), Dra S. A. Ghazanfar (OM),
Dr. A. W. Hoffman (NL), K. Kinebuchi (JP), Dr. A. W. Mace (GB), Mrs. I. M. Niesler (DE), Prof. N. Rebmann (FR),
Dr. R. C. Römer (DE), Dr. J.-M. Solichon (MC)
7th Inter-Congress: 25-29 September 1997 in SAN MARINO (US)
In memoriam: Werner Reppenhagen (AT, 12.11.1996), N. B. Wilbraham (GB, 16.5.1997)
New members: Zoological and Botanical Garden Pilsen (CZ, Inst.), Dr. R. J. Chinnock (AU), Prof. Dr. H. Fürsch (DE), N. Gerloff (DE), K. Gilmer (DE), D. Herbel (DE), A. Hofacker (DE), H. Nagl (AT), W. Papsch (AT),
Dr. J. P.Rebman (US), Mrs. M. Tiedemann (DE), Mrs. U. Schmiedel (DE), Prof. Dr. H. Uhlarz (DE)
25th Congress: 31 August-4 September 1998 in CAPE TOWN (ZA)
Board: Prof. Dr. G. Smith (ZA, Pres.), Prof. Dr. Focke Albers (DE, VicePres.), Prof. Dr. James D. Mauseth (US, Secr.), Dr. J.-M. Chalet (CH, Ass. Secr.), D. Supthut (CH, Treas.), Dr. R. Nyffeler (US, Bull. Edit.)
In memoriam: Charles Glass (MX, 23.2.1998), David Hardy (ZA, 31.5.1998), A. Lima (US)
New members: Assocacion International des Amateurs de Plantes Succulentes (AIAPS, Inst.),
M. Delugin (FR), L. G. Hernandez Sandoval (MX), Dr. R. W. Kohlschreiber (US), L. J. Miller (US),
Dr. P. Parolin (DE), R. Stephenson (GB), B. Solano Comacho (MX), Dra. R. Galvan Villanueva (MX)
26th Congress: 19 - 24 March 2000 in ZÜRICH (CH)
Board: Prof. Dr. G. Smith (ZA, Pres.), Prof. Dr. Focke Albers (DE, VicePres.), Prof. Dr. James D. Mauseth (US, Secr.), Dr. J.-M.Chalet (CH, Ass. Secr.), D.Supthut (CH, Treas.), Dr. R. Nyffeler (US, Bull. Edit.)
In memoriam: F. J. Barker Fricker (GB), A. Fröhlich (CH), C. Innes (GB)
New members: Boris Schlumberger (DE), Alessandro Mosco (IT), Matt H. Buys (ZA), Victor Gapon (RU),
Sven Bernhardt (DE), V. Byalt (RU), Irina Vassiljeva (RU), Prof. Dr. Peter Lechner (AT) Dr. M. Lowry (GB),
Evgenij Erokhin (UA), Dr. Thomas Weigelin (CH)
27th Congress: 7 - 13 April 2002 in PHOENIX, AZ (US)
Board: Prof. Dr. R. S. Wallace (US, Pres.), Prof. Dr. S. Porembski (DE, VicePres.), Dr. W. Stuppy (GB, Secretary), Dr. J.‑M. Chalet (CH, Ass. Secr.), Dr. T. Bolliger (CH, Treasurer), Dr. J. Thiede (DE, 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 (CH)
28th Congress: 31 May – 5 June 2004 in HAMBURG (DE)
Board: Prof. Dr. R. S. Wallace (US, Pres.), Prof. Dr. S. Porembski (DE, VicePres.), Dr. M. Hjertson (SE, Secretary), Dr. J.-M. Chalet (CH, Ass. Secr.), Dr. T. Bolliger (CH, Treasurer), Dr. A. Cattabriga (IT, 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 (MX), Dr. C. A. Butterworth (GB),
Dr. A. Guiggi (IT), Dr. R. H. Webb( US), K. L. G. Cabello( MX),
C. G. Hinostrosa( MX), Dr. J. Ettelt( DE)
29th Congress: 17 – 20 September 2006 in ZÜRICH (CH)
Board: Prof. Dr. L. E. Newton (GB, Pres.), Dr. R. Nyffeler (CH, VicePres.),
Dr. D. R. 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 (DE), T. Wyka (PL)
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Congress participants at the Botanical Garden on 19 September. Left to right: Maria Will, Danielle Stäheli Sombra, Markus Jerominek, Anita Lendel, Alexandra Kellner, Alessandro Mosco, Tomasz Wyka, Sven Bernhard, Ingeborg Niesler, René Deubelbeiss, Len Newton, Reto Nyffeler, Sigrid Liede-Schumann, Detlev Metzing, Jean-Marc Chalet, Boris Schlumpberger, Ehrentraud Bayer, Jean-Marie Solichon, David Hunt, Robert Wallace, Jonas Lüthy, Urs Eggli, Thomas Wegelin, Beat Leuenberger (photo: Thomas Bolliger)
30th Congress: 6 – 8 August 2008 in NATAL, Brazil
Board: Prof. Dr. L. E. Newton (GB, Pres.), Dr. R. Nyffeler (CH, VicePres.), Dr. D. R. Hunt (GB, Secretary),
Dr. D. Aplin (GB/BE, Ass. Secr.), Dr. T. Bolliger (CH, Treasurer)
In memoriam: A.B. Lau, W. Roehre, L. F. Vatrican, N. Zimmermann
New members: D. Aplin (GB/BE), C. Bjorå (NO), G. Charles (GB), M. Machado (BR), R.W. Mecklenburg (DE),
S.Oldfied (GB), C. Ritz (DE), E. Wabuleye (KE), T. Wyka (PL), Adriana Sofia Albesiano (AR)
8th Inter-Congress: 8-10 May 2009 in BONN (DE)
In memoriam: Eduard Fuhrmann (2008, AT)
New members: Dr. Jonathan Y. Clark (GB), Andrew Gdaniec MSc (GB/PL), Pablo Guerrero (CL), Paul Hoxey (GB), Nadja Korotkova (DE), Dr. Jafet M. Nassar H. (VE)
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Inter-Congress participants in the Bonn University Botanical Garden, beside the Poppelsdorf Palace on 9 May 2009.
Left to right: Detlev Metzing, Graham Charles, Reto Nyffeler, Kirsten Hahne, Martin Lowry, Nadja Korotkova, Andrew Gdaniec, Wilhelm Barthlott,
Sven Bernhard, Christiane Ritz, Maurizio Sajeva, Rainer Mecklenburg, Rainer Wahl, Willi Gertel, Paul Hoxey, Len Newton, Urs Eggli, Denis Diagre,
Ulrich Meve, David Hunt.
Not in photo: Pierre Braun, Lothar Diers, Marina Sajeva, Nigel Taylor and the photographer, Ingrid Mecklenburg.
31st Congress: 22–25 March 2010, BONN (DE)
Board: Prof. Dr. L. E. Newton (GB, Pres.), Dr. Héctor Hernández (MX, VicePres.), Dr. D. R. Hunt (GB, Secretary),
R. W. Mecklenburg (DE, Ass. Secr.), S. Oldfield (GB, Treasurer)
In memoriam: Dr. Reid Moran (2010, US)
New members: Kirsten Burstedde (DE), Michele Rodda (IT), Holger Wittner (DE)
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Congress participants outside the Nees Institute, Bonn, 24 March 2010 (back row, left to right):
Dieder Supthut, Martin Lowry, Massimo Meregalli, Graham Charles, Ingeborg Niesler, Nigel Taylor, Ulrich Meve,
Léia Scheinvar, Detlev Metzing, Rainer Mecklenburg, Jafet Nassar, Urs Eggli; (front row): David Hunt,
Nadja Korotkova, Joel Lodé, Michele Rodda, Denis Diagre, Kirsten Burstedde, Andrew Gdaniec, Sven Bernhard.
(photo: Ingrid Mecklenburg)
9th Inter-Congress; 22-24 April 2011, MONACO
Board: Prof. Dr. L. E. Newton (GB, Pres.), Dr. Héctor Hernández (MX, VicePres.), Dr. D. R. Hunt (GB, Secretary), R.W. Mecklenburg (DE, Ass. Secr.), S. Oldfield (GB, Treasurer)
In memoriam: Dr. Beat Ernst Leuenberger (2010, DE)
New members: Christof Nikolaus Schröder (DE), Fabián Font (AR), Natalia Calderón (PE), Natalia Moreno (AR),
Laura Guglielmone (IT), Dr. Alexandra Gottlieb (AR), Will Ritchie (US), Carlos Gómez-Hinostrosa (MX)
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Congress participants in Jardin Exotique, Monaco, 24 April 2011 From left to right, standing:
Myron Kimnach, Elmar Cullmann (guest), Len Newton, Guadalupe Franco, Jean-Marc Chalet, Thomas Bollinger, Graham Charles, Massimo Meregalli, Laura Guglianone, David Hunt;
kneeling: Toni Hofer, Rainer Mecklenburg, Jean-Marie Solichon, Andrea Cattabriga, Alessandra and Lorena Bolliger, Nadia Korotkova, Ingrid Mecklenburg;
in front: John N. Trager. (Photo by Ada Damiani, member of Cactus&Co.)
32nd Congress, 2-7 July 2012, HAVANA (CU)
Board: Dr. Héctor Hernández (MX, Pres.), Dr. Ulrich Meve (DE, VicePres.), Dr. D. R. Hunt (GB, Secretary), R.W. Mecklenburg (DE, Ass. Secr.), S. Oldfield (GB, Treasurer)
In memoriam: Hans Till (AT, 24.01.12)
New members: Dr Elmar Cullmann (DE), Johannes Klein (DE), John G. Zaborsky (US)
Congress participants Aula Magna, College San Geronimo de La Habana, Cuba, 2 July 2012. From left to right:
Devon Powell,
N.N., N.N.,
Rudi Fink, Jorge Gutiérrez Amaro,
N.N., N.N.,
N.N., N.N., N.N., Vanessa,
Mónica Arakaki, Joel Flores, Andrew Salywon,
N.N.,
Hugo López,
N.N., N.N.,
José Angel García, Raúl Alfonso, Rosalina Berazain,
N.N.,
Ángela T. Leiva, Majeti Narasmha Varaprasad, Carlos J. Acevedo,
Duniel Barrios, Lucia Hechavarria, Sophia Tillous, Erna Irene Graf,
Luis Roberto Gonzalez-Torres, Alejandro Palmarola, Yasmine Antinini,
N.N.,
Diana Rodríguez, Ingrid A. Mecklenburg (IOS), Len Newton (IOS), Kelly Griffin,
Luis,
Sarah Oldfield (IOS),
N.N.,
Ulrich Meve (IOS), Héctor Hernández (IOS), Kathleen Kattermann, Jorge Félix,
Fred Kattermann (IOS),
N.N.,
Holger Wittner (IOS), Rainer Mecklenburg (IOS),
N.N.,
Alejandro Zavala Hurtado, Aleksey Prokopyev, Olga Shelepova, Vladimir Pankin (IOS),
Todd Masilko, Mikhail Yamburov, Alfonso Valiente-Baunet, Vyacheslav Byalt,
Liudmila Ozerova, Hans Britsch (IOS), Beatríz Maruri Aguilar, Raúl Puente-Martínez,
Emiliano Sánchez, María Magdalena Hernández, Alina Cuza Pérez,
N.N.,
Lenia Robledo
(Photo: Jardín Botánico National de Cuba)
Honorary Members of IOS
1959: Prof.Dra.Louisa Bolus (ZA)
1978: Mme Julien Marnier-Lapostolle (FR)
1982: Dr. Heimo Friedrich (AT)
1982: Louis F. Vatrican (MC) (member of the founding party of IOS)
1982: Dr. Willy Cullmann (DE) (member of the founding party of IOS)
1982: Juan Panella Bonastre (FR) (member of the founding party of IOS)
1984: Dr. Fernando Riviere de Caralt (BE)
1986: Dr. Lyman Benson (US)
1986: Prof. Dr. Helia Bravo-Hollis (MX)
1986: Prof. John Donald (GB)
1986: Walter Haage (DDR)
1986: Gordon Rowley (GB)
1986: Dr. Bohumil Schütz (CZ)
1988: Myron Kimnach (US)
1990: Prof. Dr. Werner Rauh (DE)
1992: Marcel Kroenlein (MC)
1994: Mrs. Louise Lippold (US)
1994: Dr. David R. Hunt (GB)
2008: Dieter Supthut (CH)
Last update: 5 April 2014 (Restricted access)
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