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2024
Journal article
Local perceptions of the benefits versus negative impacts of weedy grasses in central Madagascar, with a focus on the genus Digitaria.
Les plantes et les pratiques agricoles sont essentielles aux systèmes alimentaires et au bien‐être humain. Une approche de recherche ethnobotanique a été présentée pour mieux comprendre la relation entre les plantes et les activités humaines à Madagascar, où l'agriculture constitue la base de l'économie locale. Cette recherche examine les... -
2023
Journal article
Implications of a local flora survey for pre‐human grass flora in north‐western Madagascar.
On apprend aux enfants de Madagascar que leurs ancêtres ont détruit la vaste forêt ancienne donnant naissance aux prairies modernes, un mythe trompeur qui continue à saper la relation des gens avec la nature. Remplacer ce mythe par un récit plus nuancé et précis sur les écosystèmes herbeux est... -
2023
Journal article
Evolutionary history, traits, and weediness in Digitaria (Poaceae: Panicoideae).
Digitaria is a large pantropical genus, which includes a number of economically problematic agricultural weeds. Difficulties in species identification and the circumscription of the genus have previously hindered progress in understanding its evolution and developing a stable classification. We investigate the evolutionary history of Digitaria by combining two approaches: (i)... -
2023
Journal article
Evolutionary diversity of the endemic genera of the vascular flora of Chile and its implications for conservation.
As a direct consequence of global change, both natural and human-induced, a high percentage of biodiversity is now under threat worldwide. This has urged conservation planners to formulate and/or improve existing strategies to preserve species and their ecosystems. In this context, the present study focuses on two strategies using phylogeny-based... -
2022
Journal article
A Taxonomic Revision of Styppeiochloa (Arundinoideae: Poaceae) in Madagascar.
The grass genus Styppeiochloa De Winter (Arundinoideae: Poaceae) as it occurs in Madagascar is reviewed, two new species are described, and two subspecific taxa are elevated to species status. These new species, as well as the additional collections made since the latest treatment of the genus for Madagascar in 1954,... -
2022
Journal article
Evolutionary history of the grass gynoecium.
The grass family (Poaceae) includes cereal crops that provide a key food source for the human population. The food industry uses the starch deposited in the cereal grain, which develops directly from the gynoecium. Morphological interpretation of the grass gynoecium remains controversial. We re-examine earlier hypotheses and studies of morphology...
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