Knotty diamond fern

Knotty diamond fern
Branched diamond fern ( Botrychium matricariifolium )
Systematics
Ferns Class : Psilotopsida Order : Adder tongue-like (Ophioglossales) Family : Adder tongue family (Ophioglossaceae) Genre : Diamond ferns ( botrychium ) Type : Knotty diamond fern
Scientific name
Botrychium matricariifolium
( Döll ) A.Braun ex WDJKoch

The branchy diamond fern ( Botrychium matricariifolium ) is a species of the genus diamond fern ( Botrychium ) within the family of the adder's tongue plants (Ophioglossaceae).

description

illustration

The branchy diamond fern is a deciduous, perennial herbaceous plant that reaches heights of 10 to 20 centimeters. The stem is tinged red at the base. The sterile section of the leaf is gray-green, almost sessile and simple to double pinnate. It appears to have its source well above the center of the plant. The fertile section is pinnate two to three times.

Spore ripening is from June to July.

The number of chromosomes is 2n = approx. 180.

ecology

The branchy diamond fern is a geophyte .

Occurrence

The branchy diamond fern is common in Europe and North America . In Europe, it is found mainly in Northern Europe and in Eastern Central Europe , in the Baltic Sea region up to near the Arctic Circle , in areas with an Atlantic climate it rarely occurs or is absent there, southward to the Alps and in the Mediterranean region there are only a few sites. In Russia it can only be detected very sporadically.

The branchy diamond fern is often associated with the real moon rue ( Botrychium lunaria ) in Central Europe , but it obviously prefers less calcareous and more acidic locations and sandy soils . It occurs in societies of the order Nardetalia and the class Sedo-Scleranthetea.

literature

• Otto Schmeil , Jost Fitschen (greeting), Siegmund Seybold: The flora of Germany and the neighboring countries. A book for identifying all wild and frequently cultivated vascular plants. 95th completely revised u. exp. Edition. Quelle & Meyer, Wiebelsheim 2011, ISBN 978-3-494-01498-2 .
• Eckehart J. Jäger (ed.): Excursion flora from Germany. Vascular plants: baseline. Founded by Werner Rothmaler . 20th, revised and expanded edition. Spektrum Akademischer Verlag, Heidelberg 2011, ISBN 978-3-8274-1606-3 .
• Henning Haeupler , Thomas Muer: picture atlas of the fern and flowering plants of Germany (= the fern and flowering plants of Germany. Volume 2). 2nd, corrected and enlarged edition. Published by the Federal Agency for Nature Conservation. Ulmer, Stuttgart 2007, ISBN 978-3-8001-4990-2 .
• Oskar Sebald, Siegmund Seybold , Georg Philippi (Hrsg.): The fern and flowering plants of Baden-Württemberg. Volume 1: General Part, Special Part (Pteridophyta, Spermatophyta): Lycopodiaceae to Plumbaginaceae. 2nd, supplemented edition. Eugen Ulmer, Stuttgart 1993, ISBN 3-8001-3322-9 .

Individual evidence

1. ↑ ^{a b c} Branched diamond fern. In: FloraWeb.de.
2. ↑ ^{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.  71 .

Web links

Commons : Branched diamond fern ( Botrychium matricariifolium )  - Collection of images, videos and audio files

• Knotty diamond fern. In: FloraWeb.de.
• Knotty diamond 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 .
• Botrychium matricariifolium (Döll) WDJ Koch, map for distribution in Switzerland In: Info Flora , the national data and information center for Swiss flora .
• Distribution in the northern hemisphere according to Eric Hultén
• Thomas Meyer: Mondraute data sheet with identification key and photos at Flora-de: Flora von Deutschland (old name of the website: Flowers in Swabia )
• Images: [1] , [2] , [3]