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Podcasts Videos
Podcasts Videos
 * = may be in French

Enjoy the spring weather and come discover the Rockeries' colourful blooms.
Scenery with a river and long thin trees in the background
 Genève Grandeur
 Along the Laire river
drawing of puzzle pieces coming together to depict a boy and different animals, plants, insects and so on, thus illustrating biodiversity
 The CJBG join the
 Global coalition
 to raise awareness
 towards the biodiversity
 Learn more here
 Read the press release
Two new species of ferns discovered in Geneva
 2 new species of ferns
 discovered in Geneva
 by our colleagues
 Gwénolé Blanchet and
 Frédéric Sandoz !
 Lire l'article.
Taxon article 26 November
 The history of World
 Flora Online and the
 importance of this
 collaborative project.
 Read the article
Plan Biodiversité 2020-2023
 The 2020-2023 Biodi-
 versity Plan approuved
 by the State Council.
 The CJBG greatly
 contributed to the
 objectives' definition
Tropical plants and leaves in a greenhouse
 Our greenhouses are
 closed but you can still
 discover them virtually!

Opening Hours
Address and Access
Scientific Activities*
According to the decisions taken by the authorities, the Botanical Garden, the Botanic Shop and the Library including the "Carl von Martius" Exhibition are reopen. However, the Greenhouses and the Restaurant remain closed.
Read the
CJBG Protection plan
Covid updates
Learn more HERE...
The guided tours are can-
celled until further notice.

Thank you for your understanding.
Carl von Martius Exhibition
Carl von Martius: discovering tropical biodiversity
In the CJBG Library
Extended to May 31st 2021
Watch the TEASER
New catalogue available online now.
More info HERE.
four pictures of colourful tropical plants, the two on the left on a black background and the ones on the right on a green natural background
Gesneriaceae of Pichincha Province
Available online HERE.
image of yellow feather-like flowers on a black backgroung
Flora do Brasil 2020
Available online HERE.
(Portuguese / English)
Pulication's front page with a map of the Geneva Canton in red and orange colours
Liste Rouge des plantes vasculaires du Canton de Genève
Discover and order HERE.
Book title Flore El Hierro
Just published !
by David Aeschimann
Discover more HERE.
Index Seminum 2021
Index Seminum 2021
Inventory of living collections 2021
Inventory of living collections 2021
Now available!
Annual Report 2019
Rapport Annuel 2019
Discover it now !
Scientific strategy 2020 - 2030
Available online now !

Conservatoire et Jardin botaniques de la Ville de Genève

WelcomeTeachingProposed research subjects:

Proposed research subjects

List of courses (in French)
Teaching staff (in French)
Proposed research subjects: Bachelors and Masters
Available projects - UNIGE

Responsable : Dr Mathieu Perret

En collaboration avec : Dr Alain Chautems (taxonomie des Gesneriaceae néotropicales)
Tél : +41 22 418 5195
Fax : +41 22 418 5101

Sujet proposé :

Systématique et évolution florale dans la famille des Gesneriaceae

Évolution des plantes à fleurs, en particulier dans la famille des Gesneriacées. Reconstruction d’arbres phylogénétiques sur la base de l’analyse de séquences d’ADN et utilisation de ces phylogénies pour proposer de nouvelles classifications, comprendre l’évolution des caractères floraux, les modes de spéciation et la distribution géographique des espèces. Études des bases moléculaires déterminant certains caractères floraux, en particulier ceux qui jouent un rôle important dans les relations entre les plantes et leurs pollinisateurs (p.ex. couleur de la fleur, parfum).

Références représentatives :

Perret, M., A. Chautems, R. Spichiger, T. G. Barraclough and V. Savolainen.2007. Geographic pattern of speciation and floral diversification in the Neotropics: the tribe Sinningieae (Gesneriaceae) as a case study. Evolution 61 : 1641-1660.
Perret, M., A. Chautems, R. Spichiger. 2006. Dispersal-vicariance analyses in the tribe Sinningieae (Gesneriaceae) : a clue to understanding biogeographical history of the Brazilian Atlantic forest. Annals of the Missouri Botanical Garden 93 : 340-358.
Perret, M., A. Chautems, R. Spichiger, G. Kite, and V. Savolainen. 2003. Systematics and evolution of tribe Sinningieae (Gesneriaceae): evidence from phylogenetic analyses of six plastid DNA regions and nuclear ncpGS. American Journal of Botany 90: 445-460.
Perret, M., A. Chautems, R. Spichiger, M. Peixoto, and V. Savolainen . 2001. Nectar sugar composition in relation to pollination syndromes in Sinningieae (Gesneriaceae). Annals of Botany 87: 267-273.

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Responsable : Dr Michelle Price

Tél : +41 22 418 5148
Fax : +41 22 418 5101

Sujets proposés :

1) Peristome strucutre in the moss Cynodontium polycarpum and a comparison of peristome architecture in the genus Cynodontium Bruch & Schimp.: taxonomic and phylogenetic insights.

Context: The peristomes of mosses, considered to be relatively conserved structures, represent one of the most complex morphological features to be found within this group of plants. Peristomes are widely used in the higher level classification of mosses (classes, orders, families) and also, in certain taxa, for distinguishing entities at the generic and specific levels. Structural differences in peristome morphology / anatomy at the specific levels are much less well-understood. In certain groups, such as Grimmia Hedw., longitudinal sections of the peristome teeth have revealed species specific traits that could also be potentially useful in future phylogenetic inferences, in combination with other morphological and molecular characters.

This research project involves the study of variability in peristome morphology / anatomy in populations of the widespread Holoarctic moss Cynodontium polycarpum (Hedw.) Schimp. (Rhabdoweisiaceae) and the comparison of a typical Cynodontium polycarpum peristome type to the peristomes of other species of the same genus. The aims of the project are to: 1) establish the degree of variability in peristome structure in C. polycarpum; 2) compare peristome structure of different species from within the same genus to establish whether certain peristome traits are species-specific, and 3), assess the potential for the use of differences-similarities in peristome structure in phylogenetic inferences in Cynodontium. This Masters research project will contribute to on-going research on peristomes of the Dicranidae at the CJBG

2) The morphological and ecological distinctions between Tortella bambergeri and Tortella tortuosa ( (Pottiaceae, Bryophyta).

Tortella bambergeri (Schimp.) Broth. and Tortella tortuosa Hedw.) Limpr. are morphologically close species. This research involves the study of herbarium and freshly collected samples of these two species,and the elaboration of any structural (morphological and anatomical), ecological or biological differences between them. The aim of this project is to provide morphological / ecological evidence that facilitates the correct distinction of these two species in the field and laboratory. This research also forms a contribution towards the Moss Flora of Switzerland by clarifying the identities of these two taxa within Switzerland through the study of material collected from Switzerland.

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Responsable : Dr Fred Stauffer
Conservateur CJB

Tél : +41 22 418 5178
Fax: +41 22 418 5101

Sujet proposé :

Food plants of Senegal: an integrated approach bridging botany and archaeobotany

This master project aims to undertake modern botanical and ethnobotanical surveys on two localities of the West African country of Senegal. The project relies on fieldwork in two selected regions representing highly contrasted ecological and vegetation areas. One area corresponds to the semidry and moderately hilly lowlands (Bedik country) and the second the lowland formations of the highly diverse area of the Upper Guinean forest (Casamance).

The approach includes the inventory of all native and introduced plants associated to traditional food uses, and the taxonomic identification, common names and uses of all food plants present in these areas. Working methodologies also include the collection of herbarium samples that will be stored in the herbarium of the Faculty of Science at the University Anta-Diop (Dakar, Senegal), with several duplicates deposited in the Herbarium of Geneva.

This project is framed in a larger initiative including an international team of archeologists, zoologists and botanists and therefore benefits of interdisciplinary expertise. Funding for field work and presentation of conferences in international congresses is already guaranteed.

Time frame 1.5 years
Starting early 2020

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