Sudeten bladder fern
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Sudeten bladder fern ( Cystopteris sudetica ) |
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| Cystopteris sudetica | ||||||||||||
| A. Braun & Milde |
The Sudeten bladder fern ( Cystopteris sudetica ) is a representative of the ciliate fern family (Woodsiaceae) that also occurs in Central Europe .
features
The Sudeten bladder fern reaches heights of 20 to 40 centimeters. It has a long, creeping rhizome , so the fronds are separated from each other. The fronds are double to fourfold pinnate. The leaf blade is shorter than the petiole and broadly ovate in shape. The rachis is bald. The veil is tightly glandular. The chaff scales usually have no glands. The spores ripen in July and August.
The chromosome number is 2n = 168.
distribution
The Sudeten Bubble Fern thrives in Europe, western and eastern Russia, Japan and China in the provinces of Hebei, Heilongjiang, Jilin, Liaoning, Nei Mongol, Shanxi, Xizang and Yunnan.
The Sudeten bladder fern grows in moist mountain forests, on limestone rocks and on limestone rubble. In Germany it occurs only in Bavaria near Berchtesgaden , in Austria it is absent. In Germany it is considered extremely rare and in Bavaria as threatened with extinction. There are other deposits in the Czech Republic and in the area of former Silesia.
supporting documents
- Siegmund Seybold (Ed.): Schmeil-Fitschen interactive (CD-Rom), Quelle & Meyer, Wiebelsheim 2001/2002, ISBN 3-494-01327-6
Individual evidence
- ↑ Zhongren Wang & Christopher Haufler: Cystopteris Bernhardi. - Same text online as the printed work , In: Wu Zheng-yi, Peter H. Raven, Deyuan Hong (Ed.): Flora of China. Volume 2-3: Cystopteridaceae. Science Press and Missouri Botanical Garden Press, Beijing and St. Louis 2010
- ^ Manfred A. Fischer , Karl Oswald, Wolfgang Adler: Excursion flora for Austria, Liechtenstein and South Tyrol. 3rd, improved edition. State of Upper Austria, Biology Center of the Upper Austrian State Museums, Linz 2008, ISBN 978-3-85474-187-9 .
Web links
- Sudeten bladder fern. In: FloraWeb.de.
- Sudeten bladder 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 .
- Thomas Meyer: Bubble fern data sheet with identification key and photos at Flora-de: Flora von Deutschland (old name of the website: Flowers in Swabia )