Le genre Carex, qui comprend plus de 2000 espèces de plantes herbacées, est l'un des plus répandus dans le monde entier. Dans cette monographie minutieuse, Henri Spinner (1840-1911), botaniste suisse, étudie en détail l'anatomie des feuilles de différentes espèces de Carex, en utilisant des techniques de microscopie avancées. Les résultats de cette étude ont eu un impact important sur la compréhension de l'évolution et de la systématique des plantes.
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