Dryopteris carthusiana (Vill.) H.P.Fuchs, 1959

Common names

🇬🇧 Narrow Buckler-fern
🇫🇷 Dryoptéride des Chartreux, Dryoptéris des chartreux, Fougère spinuleuse

Taxonomy

Kingdom: Plantae
Clade: Tracheophytes
Clade: Monilophytes
Class: Polypodiopsida
Subclass: Polypodiidae
Order: Polypodiales
Suborder: Polypodiineae
Family: Dryopteridaceae
Subfamily: Dryopteridoideae
Genus: Dryopteris
Species: Dryopteris carthusiana

Presence

Present.

Conservation status

Red List (Metropolitan France): LC Least Concern
Red List (Europe): LC Least Concern

Notes

Possible confusion with D. dilatata (Hoffm.) A.Gray, 1848, which has abundant bicolor scales on the petiole, while D. carthusiana has few light brown, concolorous scales on the petiole.

Possible confusion with D. remota (A.Braun ex Döll) Druce, 1908, which has a black spot at the junction of the pinnae with the rachis, visible on the abaxial side.

Allotetraploid (2n = 164).

The following infraspecific taxa are accepted:

D. carthusiana var. carthusiana (Vill.) H.P.Fuchs, 1959, P;
D. carthusiana var. enigmatica Harmaja, 2012.

Hybridizes with:

D. dilatata (Hoffm.) A.Gray, 1848 to produce D. × deweveri (J.T.Jansen) Jansen & Wacht., 1934, P;
D. expansa (C.Presl) Fraser-Jenk. & Jermy, 1977 to produce D. × sarvelae Fraser-Jenk. & Jermy, 1977, P;
D. filix-mas (L.) Schott, 1834 to produce D. × brathaica Fraser-Jenk. & Reichst., 1977, P;
D. remota (A.Braun ex Döll) Druce, 1908 to produce D. × alpirsbachensis Freigang, Zenner, Bujnoch, S.Jess. & Magauer, 2017, P.

Photographs

img/dryopteris-carthusiana.webp — *Dryopteris carthusiana*

img/dryopteris-carthusiana-2.webp — *Dryopteris carthusiana*

img/dryopteris-carthusiana-3.webp — *Dryopteris carthusiana* - Pinnae

img/dryopteris-carthusiana-6.webp — *Dryopteris carthusiana* - Pinna

img/dryopteris-carthusiana-4.webp — *Dryopteris carthusiana* - Pinnules

img/dryopteris-carthusiana-5.webp — *Dryopteris carthusiana* - Pinnules, abaxial side showing indusia and sori

img/dryopteris-carthusiana-9.webp — *Dryopteris carthusiana* - Basal pinna

img/dryopteris-carthusiana-7.webp — *Dryopteris carthusiana* - Petiole showing light brown, concolorous scales

img/dryopteris-carthusiana-8.webp — *Dryopteris carthusiana* - Crozier unfurling

Sources

Badré, F., & Deschatres, R. (1979). Les Ptéridophytes de la France : liste commentée des espèces (taxinomie, cytologie, écologie et répartition générale). Candollea, 34(2), 379-457. https://doi.org/10.5169/seals-880127
Prelli, R., & Boudrie, M. (2024). Les fougères et plantes alliées d’Europe (2nd ed., p. 373). Biotope.
Tison, J.M., & de Foucault, B. (2014). Flora Gallica : Flore de France (p. 13). Biotope.
Väre, H., Bento Elias, R., Christenhusz, M., Dyer, R., Ivanenko, Y., Rouhan, G., & Rumsey, F. (2017). Dryopteris carthusiana (Europe assessment). The IUCN Red List of Threatened Species, 2017. https://www.iucnredlist.org/species/83645968/85424377