About the Authors

Gérard Second

gerard.second@mpl.ird.fr

Affiliation UMR DIAPC, IRD, Montpellier, France

Germinal Rouhan

Affiliations IRD US84, National Museum of Natural History, Paris, France, The New York Botanical Garden, Institute of Systematic Botany, New York, New York, United States of America

Competing Interests

The authors have declared that no competing interests exist.

Author Contributions

Conceived and designed the experiments: GS. Performed the experiments: GS GR. Analyzed the data: GS GR. Contributed reagents/materials/analysis tools: GS GR. Wrote the paper: GS GR. Other: Visited herbaria: GR GS.