Roll ferns

Roll ferns
	Delicate furry fern ( Cryptogramma stelleri )
Systematics
Department :	Vascular plants (tracheophyta)
	Ferns
Class :	True ferns (Polypodiopsida)
Order :	Spotted ferns (Polypodiales)
Family :	Hemlock Family (Pteridaceae)
Genre :	Roll ferns
Scientific name
	Cryptogramma
	R.Br.

The cryptogramma ( Cryptogramma ) is a genus in the family of pteridaceae (Pteridaceae) within the Real ferns (Polypodiopsida). The nine or so species are mainly found in the northern hemisphere .

features

The roll fern species are perennial herbaceous plants . They form creeping rhizomes and tubular or net-like vascular bundle systems . The leaves are strikingly different depending on whether they are fertile or sterile. The sori are submarginal, they are veilless and later form a single sori at the end of the veins. The spores are tetrahedral.

American fur fern ( Cryptogramma acrostichoides )

Curly furry fern ( Cryptogramma crispa )

Systematics and distribution

The genus Cryptogramma was established by Robert Brown .

The genus Cryptogramma is common in the northern hemisphere in Eurasia and North America . In the southern hemisphere there are only isolated occurrences in southern South America.

There are only two species in Europe: Curly furry fern ( Cryptogramma crispa ) and delicate furry fern ( Cryptogramma stelleri ).

There are about nine species of the genus Cryptogramma R.Br. (Selection):

Curly furry fern ( Cryptogramma crispa (L.) R.Br. ex Hook. , Syn .: Allosorus crispus (L.) Bernh. ), With triple pinnate leaves

Delicate furry fern ( Cryptogramma stelleri (SGGmel.) Prantl ): The leaves are double pinnate. It occurs in North America and reaches Europe from East Asia via Russia.

American fur fern ( Cryptogramma acrostichoides R.Br. ): It occurs in East Asia ( Kamchatka ) and North America, south to Mexico.

Cryptogramma brunoniana Wall. ex Hook. & Grev. : It occurs in East Asia and in western North America.

Cryptogramma raddeana Fomin : It occurs in East Asia.

Cryptogramma sitchensis (Rupr.) T.Moore : It occurs in Alaska , subarctic Canada and British Columbia .

swell

literature

André Gilles Célestin Lawalrée: Cryptogramma R. Br. Ex Richardson. S. 14. In: Thomas Gaskell Tutin et al .: Flora Europaea. Volume 1, 2nd edition. Cambridge University Press 1993, ISBN 0-521-41007-X .
Josef Dostál: Cryptogrammaceae, scroll fern family . In: Gustav Hegi : Illustrated flora of Central Europe. Volume I Part 1. pp. 109-112. 3. Edition. Paul Parey publishing house, Berlin, Hamburg 1984, ISBN 3-489-50020-2 .

Individual evidence

^ Walter Erhardt et al .: The great pikeperch. Encyclopedia of Plant Names. Volume 2. Verlag Eugen Ulmer, Stuttgart 2008, ISBN 978-3-8001-5406-7 .
↑ ^a ^b Cryptogramma in the Germplasm Resources Information Network (GRIN), USDA , ARS , National Genetic Resources Program. National Germplasm Resources Laboratory, Beltsville, Maryland. Retrieved February 26, 2019.
↑ M. Christenhusz, E. von Raab-Straube (2013): Polypodiopsida. : Data sheet Cryptogramma In: Euro + Med Plantbase - the information resource for Euro-Mediterranean plant diversity.

Web links

Commons : Rolling Ferns ( Cryptogramma ) - Collection of images, videos and audio files

[Zander2008-1] Walter Erhardt et al .: The great pikeperch. Encyclopedia of Plant Names. Volume 2. Verlag Eugen Ulmer, Stuttgart 2008, ISBN 978-3-8001-5406-7 .

[GRIN-2] Cryptogramma in the Germplasm Resources Information Network (GRIN), USDA , ARS , National Genetic Resources Program. National Germplasm Resources Laboratory, Beltsville, Maryland. Retrieved February 26, 2019.

[Euro+Med-3] M. Christenhusz, E. von Raab-Straube (2013): Polypodiopsida. : Data sheet Cryptogramma In: Euro + Med Plantbase - the information resource for Euro-Mediterranean plant diversity.