Category: Species

Matteuccia struthiopteris (L.) Tod.
Ostrich Fern
Matteuccie
Straussenfarn
Straussefar
Class: Polypodiopsida
Family: Woodsiaceae

Status

R – extremely rare

Description

Matteuccia struthiopteris was considered as Regionally Extinct (RE) in Luxembourg, until 2017, when the Ostrich Fern was (re)discovered by K.-G. Gessner near Dondelange. The presence of M. struthiopteris along a hedgerow is probably the result of a garden escape.

Further information

Krippel, Y., T. Helminger & G. Colling, 2018. Notes floristiques. Observations faites au Luxembourg (2016-2017). Bull. Soc. Nat. luxemb. 120 : 57-76.
Krippel, Y. & P. Thommes, 2021. Cyrtomium fortunei J. Sm. (Dryopteridaceae) and other garden escaped ferns in Luxembourg. Bull. Soc. Nat. luxemb. 123: 21-28..

Lycopodium clavatum L.
Stag’s-horn Clubmoss
Lycopode en massue
Keulen-Bärlapp
Klëppel-Äerdmoos, Blëtzpolverkraut
Class: Lycopodiopsida
Family: Lycopodiaceae

Status

CR – critically endangered

Further information

Lycopodium clavatum is considered as ‘critically endangered’. In the last decades however, the species was no longer observed in its known locations, and it was considered as possibly extinct!

Fortunately Jean Werner and Thierry Mahévas, investigating the bryophytes in the valley of the Mandelbaach near Brouch/Mersch found a new site of this extremely rare species in spring 2013, more than 20 years after the last observation made in 1992 in the north of Luxembourg (Krippel & Colling 2014: 110).

More information about Lycopodium clavatum in Luxembourg was compiled by Krippel & Massard (2019).

References

Krippel, Y. & G. Colling, 2014. Notes floristiques. Observations faites au Luxembourg (2012-2013). Bull. Soc. Nat. luxemb. 115: 109-124.
Krippel, Y. & J. A. Massard, 2019. – Les lycopodes (Lycopodiaceae) au Luxembourg – notes chorologiques et liste rouge. – Bull. Soc. Nat. luxemb. 121: 53-69.

Lycopodium annotinum L.
Interrupted Clubmoss
Lycopode à feuilles de genévrier, L. à rameaux annuels
Sprossender Bärlapp, Wacholder-Bärlapp
Wakelter-Äerdmoos
Class: Lycopodiopsida
Family: Lycopodiaceae

Status

CR – critically endangered

Further information

Krippel, Y. & J. A. Massard, 2019. – Les lycopodes (Lycopodiaceae) au Luxembourg – notes chorologiques et liste rouge. – Bull. Soc. Nat. luxemb. 121: 53-69.

Lycopodiella inundata (L.) Holub
Marsh Clubmoss
Lycopode inondé
Sumpf-Bärlapp
Mouer-Äerdmoos
Class: Lycopodiopsida
Family: Lycopodiaceae

Status

RE – regionally extinct

Further information

Krippel, Y. & J. A. Massard, 2019. – Les lycopodes (Lycopodiaceae) au Luxembourg – notes chorologiques et liste rouge. – Bull. Soc. Nat. luxemb. 121: 53-69.

Hymenophyllum tunbrigense (L.) Smith
Tunbridge Filmy-fern
Hyménophylle de Tunbridge
Englischer Hautfarn
Engleschen Hautfar
Class: Polypodiopsida
Family: Hymenophyllaceae

Status

EN – endangered

Further information

More information about the history of its discovery, the present distribution and status in Luxembourg can be found in:

Krippel, Y., 2005. – The Hymenophyllaceae (Pteridophyta) in Luxembourg – Past, present and future. – In: Ries C. & Y. Krippel (Editors), 2005. – Sandstone Landscapes in Europe – Past, Present and Future. Proceedings of the 2nd International Conference on Sandstone Landscapes. Vianden (Luxembourg) 25-28.05.2005. – Ferrantia. Trav. Scientif. Mus. Hist. Nat. Lux. 44: 209-214.

Huperzia selago (L.) Bernh. ex Schrank et Mart.
Fir Clubmoss
Lycopode sélagine
Tannen-Bärlapp
Dännen-Äerdmoos 
Class: Lycopodiopsida
Family: Lycopodiaceae

Status

RE – regionally extinct

Further information

The latest related observation in literature was made by L. Reichling in 1988 near Berdorf. Unfortunately, the last known site in Luxembourg was definitely destroyed in 2004 (Schwenninger in litt.); so the status has to be revised from CR – critical to RE – regionally extinct.

For more details: Krippel, Y. & J. A. Massard, 2019. – Les lycopodes (Lycopodiaceae) au Luxembourg – notes chorologiques et liste rouge. – Bull. Soc. Nat. luxemb. 121: 53-69.

Gymnocarpium robertianum (Hoffmann) Newm.
Limestone Fern
Lastrée du calcaire
Ruprechtsfarn
Ruppert-Eechefar, Steefar
Class: Polypodiopsida
Family: Woodsiaceae

Status

* – not threatened

Gymnocarpium dryopteris (L.) Newm.
Oak Fern
Lastrée du chêne
Echter Eichenfarn
(Gewéinlechen) Eechefar
Class: Polypodiopsida
Family: Woodsiaceae

Status

* – not threatened

Equisetum × moorei Newman
Moore’s Horsetail
Prêle de Moore
Moores Schachtelhalm
Moore-Kazeschwanz
Class: Polypodiopsida
Family: Equisetaceae

Status

DD – data deficient

Description

Equisetum × moorei Newman is the hybrid of Equisetum hyemale × E. ramosissimum. It was first discovered for Luxembourg in 2011 [Steinfort, Schwarzenhaff (60,1/81,3; L8.51.24), 31.8.2011 (B. Pétrement, B. Diethelm)].

Further information

• • Pétrement, B., A. Bizot & Y. Krippel, 2012. Equisetum ×moorei Newman (Equisetaceae, Pteridophyta), taxon nouveau pour le Luxembourg. Bull. Soc. Nat. luxemb., 113: 83-90.

More information about the horsetails in Luxembourg can be found in: Krippel, Y., 2023. Les prêles (Equisetaceae) au Luxembourg – notes chorologiques et liste rouge. Bulletin de la Société des naturalistes luxembourgeois 125 : 3-16. https://doi.org/10.59513/snl.2023.125.003

Equisetum × litorale Kühl. ex Rupr.
Shore Horsetail
Prêle du littoral
Ufer-Schachtelhalm
Ufer-Kazeschwanz
Class: Polypodiopsida
Family: Equisetaceae

Status

LC – least concern

Description

Equisetum × litorale Kühl. ex Rupr. is the hybrid of Equisetum arvense × E. fluviatile. It was first discovered for Luxembourg in 2003 [Noertrange, Säitertbaach (60,5/117,4; K8.11.23), near the river, 27.8.2003 (Y. Krippel, A. Scheer) (hb. Krippel)].
Equisetum × litorale is however easily disregarded, as the hybrid is – from the morphologic point of view – often similar to one of the parents (Jeßen 1987, Lambinon et al. 1992). The frequency in the region is considered of being rare, but is probably underestimated. E. × litorale is known from the neighbouring countries, for example in the Saarland (Parent 1997, Sauer 1993) and in the French Ardennes (Bizot 2000).

Further information

More information about the horsetails in Luxembourg can be found in: Krippel, Y., 2023. Les prêles (Equisetaceae) au Luxembourg – notes chorologiques et liste rouge. Bulletin de la Société des naturalistes luxembourgeois 125 : 3-16. https://doi.org/10.59513/snl.2023.125.003