Atlas of the pteridophytes of Luxembourg. In the last decades, ferns and allied plants - especially subspecies and hybrids - were often neglected by botanists in Luxembourg, so that reliable data about distribution and status of pteridophyte species is often lacking. Over the last few years, the study of the pteridophytes of Luxembourg was relaunched, and the existing information deficiencies are progressively reduced.
Investigation of the sandstone region in Luxembourg in order to localise Trichomanes speciosum Willd. (Killarney Fern) and to fix the distribution area of the gametophyte for Luxembourg.
Investigation in order to localise Asplenium trichomanes L.subsp. pachyrachis (Christ) Lovis & Reichstein (Lobed Maidenhair Spleenwort) and to fix the distribution area for Luxembourg.
Research of rare plant species in connection with the 'Atlas of endangered species' for Luxembourg
Ajuga pyramidalis L.
Circaea alpina L.
Gentianella germanica (Willd.) E.F.Warb.
Lathyrus hirsutus L.
Orthilia secunda (L.) House
Osmunda regalisL.
Thelypteris palustris Schott
Trifolium rubens L.
Cartography and monitoring work in relation to the native flora and fauna