Alchemilla (Rosaceae) in the Massif Central (France).Introduction and one new Species Alchemilla reflexasp. nov.

摘要

RESEARCH PAPERAlchemilla (Rosaceae) in the Massif Central (France).Introduction and one new Species Alchemilla reflexasp. nov.Peter Frost-OlsenHerbarium, Science Museums, Aarhus University, Ole Worms Allé 1, Building 1137, DK-8000 Aarhus C, DenmarkAnew species of Alchemilla L. (Rosaceae), A. reflexa Frost-Ols., is described and illustrated.A. reflexa is characterized by deflexed indumentum on petioles and stems, orbicular leaveswith imbricate basal lobes and crimson-magenta coloured basal stipules.It is distributed inthe Massif Central, France, where it is widespread, and in northeastern Pyrenees (déps.Ariège and Aude). A. reflexa is compared with two species previously recorded from theMassif Central with doubt, A. exigua Buser and A. strigosula Buser and with A. filicaulisBuser that can be misidentified as A. reflexa in the field. An introduction to past treatments ofAlchemilla in the Massif Central is provided as well as adiscussion of some morphologicalelements used for delimiting Alchemilla taxa.