Biography

Catherine Reeb

France
At a glance
CountryFrance
AffiliationMuséum National d’Histoire Naturelle
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MembershipIAB memberMember since January 2025
Biography

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EnglishNative language

I was born in Paris, France. After training in biology and geology, I studied botany on European plants, ecology and evolution in France. I teach at the Sorbonne Université (Paris, France) in Master’s degrees for high-school teacher training and I belong to the Institut de Systématique at the Museum d’Histoire Naturelle in Paris, for research activities. I was soon attracted by hidden diversity, entering into a sort of microscopic galaxy, with many unknown but accessible planets, being offered to our curiosity. I hesitated whether to dive into lichens or into bryophytes, the latter finally won.

In the year 2000, I discovered tropical biodiversity in French Guyana, West Indies and finally in Madagascar. I began to work in research both on fern ecology and on thalloid liverworts. I accumulated experiences in Madagascar, spending several weeks there each year and I became more and more involved in Malagasy bryophyte surveys, learning every day. It cannot be a solitary task and a working group was created (Madbryo) which aims to improve and to boost the knowledge both for herbarium study and for new collections in the field. Among all of the colleagues involved, let me mention Lova Marline, the first female bryologist from Madagascar, Roger Lala Andriamiarisoa and John Brinda, from the Missouri Botanical Garden.

For my PhD, I was supposed to work on the ecological approach of bryophyte microstations. As soon as I began to study them for simple thalloid liverworts (Riccardia, Aneuraceae) in Madagascar, I realized that it was impossible to seriously identify most of the specimens, in the field or in the herbarium; taxonomy and systematic just dawned on me. I discovered molecular approaches and the integration of various methods to delineate species, with a stream of questions around species, speciation and biological history: “What is a species?”, “How can we decide to propose this species?”, “Could we find hidden characters?”. Trying to answer these questions, I became interested in geomorphometrical characterization of thallus.

Bryophyte study is not easy, needing improbably thin sections from one cell thick leaves; how many times did I complain about these slippery little things under the binocular! But succeeding in the identification of a liverwort or just understanding that you are observing something that probably has no name for the moment, even in native language, is an extraordinary joy. I cannot end this presentation without a special thanks to my favorite bryophytes, undoubtedly the liverwort genus Riccia; I cannot explain this attraction, they are just beautiful.

Publications: https://isyeb.mnhn.fr/en/directory/catherine-reeb-5468