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The programme with all events and speakers

Programme 6-7-8 September 2019

  1. Day 1

  2. Setting up stands

    (sellers only)

  3. Plant sales

  4. Opening and lecture

    Joël Lodé


    Joël Lodé

    The new Taxonomy of the Cactaceae and its implications (en)

    Joël Lodé is a naturalist adventurer originally from Nantes, France, the home of Jules Vernes. Inspired by Jules Verne’s adventures, he has travelled extensively around the world on many adventures, including an around-the-world bicycle trip that started in 1975. This led to the first encounter with his first cactus in California, an unpleasant encounter due to a flat tyre! He has presented lectures on cacti and other succulents in many countries. He also publishes the quarterly journal “International Cactus Adventures” and manages the website Cactus-Adventures.com. He has written several books including “Succulent Plants of the Canary Islands”, “Succulent Plants of Socotra” and more recently, “Taxonomy of the Cactaceae” in two volumes.

    A definitely modern, pedagogical and above all very personal way of presenting the new taxonomy of the Cactaceae and its implications: this is what this very different lecture proposes in its concept and presentation, unexpected even for a subject that is nevertheless serious: the classification of cacti, the new DNA data, but also the secrets of a prickly world that holds many surprises.

  5. Cafetaria

    Social gathering

  6. Day 2

  7. Plant sales

  8. Lecture

    Roland Reith


    Roland Reith

    Ein Leben mit Kakteen (de)

    A life with cacti

    Collecting something has been in our blood since earliest mankind. Whereas collecting food was originally a necessity to survive, today in the industrial countries collecting has a totally different meaning. Many of my cactus friends have been collecting and dealing with cacti and other succulent plants for several decades, some of them even for half a century or more. Often they still know how their hobby started. Sometimes it was a deliberate choice, sometimes sheer coincidence.

    In my audio-visual presentation I show with pictures and films from my collection and from my travels to North and South America and to South Africa how the passion for cacti and succulents can look like, how it develops and in what we are interested in these plants. Especially visiting the plants in the deserts and semi-deserts of this earth shows us the adaptability that the plants have developed and the strategies with which they can defy the most adverse conditions. We will visit the US deserts, pictures from the Chilean Atacama desert but also from the highlands of Argentina. Bolivia and Peru will show us fascinating landscapes and habitats. Also the systematics and the taxonomy will be discussed. We will see examples of extreme spination, of special adaptations to the habitats and of course of beautiful flowers. But we also must deal with the changes in the homelands by human interference and not at least by the climate change.

    Our collecting has not least something to do with commitment. We took a decision a long time ago by selecting these interesting plants. Our actions are largely determined by it. We neither need nor want to follow every new trend anymore. We no longer have to weigh up whether our decision was the right one and look for always new, supposedly better possibilities. We know that we have taken the right decision and have a deepened feeling of satisfaction in our passion for cacti. We have the most beautiful hobby you could wish for.

  9. Meeting International Euphorbia Society

    Meeting Cactus Francophone

  10. Lecture

    Paul Klaassen

    The Netherlands

    Paul Klaassen

    Mist (nl)


    Born in the Netherlands, Paul won his first cactus show at school in 1959. His Opa (Grandad) gave him his first subscription to Succulenta, the Dutch C&S Society, as a birthday present in 1963. He moved with his family from the Netherlands to Denmark and later to England where he still lives. In 1997 Paul made his first trip to Cactus Country, travelling through New Mexico, Arizona, Utah, and Colorado. This first trip fired up a passion to see cacti in their habitat in preference to pots at home. Since then Paul has explored for cacti and other succulent plants in South Africa and Namibia, South America (Argentina, Bolivia, Brazil, Chile, and Peru) and North America (USA, Mexico and Cuba). One feature of Paul’s trips has been the publication of his Trip Diaries on the internet: pkcactus.wordpress.com.

    During my trips to various ‘cactus and succulent plant’ countries, I always take GPS readings to record where the plants grow. After trips to the Chilean Atacama Desert and the Mexican States of Baja California, I noticed that the plants often grew in dense fog and that the latitudes were very similar, except that in Chile they were south of the Equator while those in Mexico grew in the northern hemisphere. The Tropics are said to occur at 23 o 26’, but in reality, this varies between 22 and 24.5o. After searches on the Internet, I learned that the most arid parts of the world occur around the Tropics of Capricorn and Cancer, ideal for succulent plants including cacti. Where a cold Gulfstream passes along warm land, this often results in mist or fog. I, therefore, photographed plants living in fog deserts. After more searches on the Internet, I learned that there is another important fog desert along the Namibian coast, so I had to visit there as well.  

    My presentation shows how fog allows plants to grow here and which plants we found. 

  11. Meeting Tephrocactus Study Group

    Meeting International Asclepiad Society

  12. Lecture

    Marlon Machado


    Marlon Machado

    Endangered cacti of Brazil (en)

    Marlon Machado was born in Salvador, Bahia, in northeastern Brazil, and at an early age he developed a keen interest in plants. He began to collect cacti when he was fifteen, and in time his curiosity about these plants led him to start to study cacti in more detail, specially the cacti native to northeastern Brazil. He has published articles in several journals devoted to cacti and succulents, and he has also published a book about the genus Uebelmannia together with Australian Rudolf Schulz, and more recently a book on the cacti of the semiarid region of Brazil. His passion for cacti and plants in general induced him to study botany, in which he got a master's degree in January 2005 at the State University of Feira de Santana, Bahia, with a thesis on the genetic and morphologic variability of Discocactus species. Marlon has also worked for three years (2005-2007) at the Institute for Systematic Botany, University of Zurich, Switzerland, conducting a study of the relationships of species within the genus Parodia (Notocactus). In October 2014 he got a Ph.D. in Botany at the State University of Feira de Santana, Bahia, with a thesis on systematics and biogeography of Spondias (Anacardiaceae), a group of fruit trees that occur in the semiarid regions of northeastern Brazil, where he investigated hybridization processes. Currently he is operating a cactus and succulent nursery in Minas Gerais, Brazil.

  13. Cafetaria

    Social gathering

  14. Day 3

  15. Plant sales

  16. Lecture and Closing

    Diane Ortolani


    Diane Ortolani

    Le déménagement du Centre Botanique de Monaco (fr)

    The relocation of the Botanical Centre of Monaco

    I have been interested in the animal and plant world since I was a child. This interest guided my studies and allowed me to obtain a master's degree in earth sciences and life. The protection and conservation of species is particularly important to me. In 2009, I joined the Botanic Garden team and was able to improve my knowledge of succulent plants and discover all that was being done in terms of species conservation and protection. The work, varied and motivating, allows me to evolve within a field that fascinates me.

    As part of a global project to redevelop the western entrance to the Principality of Monaco, the former greenhouses of the Botanic Garden had to be moved. The first digging was carried out in September 2015, the inauguration of the Botanic Centre took place on 31 October 2017. We moved a total of 10,500 plants, 10,000 pot plants and 500 plants in open ground, representing 80% of the work. This move required 3 years of work, including one year of design. This Botanic Centre has been completely redesigned to allow for visitors.