Brown-green striped fern

Brown-green striped fern
	Brown-green striped fern ( Asplenium adulterinum )
Systematics
	Ferns
Class :	True ferns (Polypodiopsida)
Order :	Spotted ferns (Polypodiales)
Family :	Striped fern family (Aspleniaceae)
Genre :	Striped Ferns ( Asplenium )
Type :	Brown-green striped fern
Scientific name
	Asplenium adulterinum
	Mildness

Brown-green striped fern ( Asplenium adulterinum ) in Upper Franconia

The brown-green striped fern ( Asplenium adulterinum ) is a representative of the striped fern ( Asplenium ) that only occurs on serpentine rock .

features

The brown-green striped fern reaches heights of growth of 5 to 20 cm. The fronds are simply pinnate, with the stem shorter than the blade. The stem and rachis are not winged. The petiole and base of the rachis are reddish brown, the rest green. The leaflets are often perpendicular to the frond surface. The spores ripen in July and August.

The number of chromosomes is 2n = 144.

Spores appear only in representatives of the species. The not uncommon hybrids with Asplenium viride , Asplenium trichomanes and Asplenium adulterinum are sterile.

distribution

The brown-green striped fern occurs in Central Europe in Bavaria and Saxony (e.g. Fichtelgebirge, Franconian Forest), Lower Austria, Burgenland, Carinthia, Salzburg, Styria, Switzerland, the Czech Republic and in the area of former Silesia. In Germany the species is classified as endangered.

It grows on serpentine rocks from the colline to the subalpine altitude level . He is the association character of the Asplenietum serpentini.

Systematics

One can distinguish the following subspecies:

Asplenium adulterinum Milde subsp. adulterinum
Asplenium adulterinum subsp. presolanense mokry & al. : It occurs in Italy and Switzerland.

literature

Siegmund Seybold (Ed.): Schmeil-Fitschen interactive (CD-Rom), Quelle & Meyer, Wiebelsheim 2001/2002, ISBN 3-494-01327-6

Individual evidence

↑ ^a ^b Erich Oberdorfer : Plant-sociological excursion flora for Germany and neighboring areas . With the collaboration of Angelika Schwabe and Theo Müller. 8th, heavily revised and expanded edition. Eugen Ulmer, Stuttgart (Hohenheim) 2001, ISBN 3-8001-3131-5 , pp. 77 .
↑ ^a ^b Christenhusz, M. & Raab-Straube, E. von (2013): Lycopodiophytina. - In: Euro + Med Plantbase - the information resource for Euro-Mediterranean plant diversity. Datasheet Asplenium adulterinum In: Euro + Med Plantbase - the information resource for Euro-Mediterranean plant diversity.

Web links

Commons : Asplenium adulterinum - collection of images, videos and audio files

Brown-green striped fern. In: FloraWeb.de.
Brown-green striped fern . In: BiolFlor, the database of biological-ecological characteristics of the flora of Germany.
Profile and distribution map for Bavaria . In: Botanical Information Hub of Bavaria .
Distribution in Switzerland [1]
Distribution in the northern hemisphere according to Eric Hultén
Thomas Meyer: Stripe fern data sheet with identification key and photos at Flora-de: Flora von Deutschland (old name of the website: Flowers in Swabia )

[Oberdorfer2001-1] Erich Oberdorfer : Plant-sociological excursion flora for Germany and neighboring areas . With the collaboration of Angelika Schwabe and Theo Müller. 8th, heavily revised and expanded edition. Eugen Ulmer, Stuttgart (Hohenheim) 2001, ISBN 3-8001-3131-5 , pp. 77 .

[Euro+Med-2] Christenhusz, M. & Raab-Straube, E. von (2013): Lycopodiophytina. - In: Euro + Med Plantbase - the information resource for Euro-Mediterranean plant diversity. Datasheet Asplenium adulterinum In: Euro + Med Plantbase - the information resource for Euro-Mediterranean plant diversity.