Adiantum jordanii

Adiantum jordanii
	Adiantum jordanii
Systematics
	Ferns
Class :	True ferns (Polypodiopsida)
Order :	Spotted ferns (Polypodiales)
Family :	Hemlock Family (Pteridaceae)
Genre :	Maidenhair Fern ( Adiantum )
Type :	Adiantum jordanii
Scientific name
	Adiantum jordanii
	CHMull.

Adiantum jordanii is a plant of the genus adiantum within the family of pteridaceae (Pteridaceae). It occurs only in California and Baja California , where the common English name California maidenhair (freely translated: " California maidenhair fern") is used.

features

Each individual frond can reach a length of more than half a meter. It is composed of many round green segments. Each segment has two to four lobes, and there can be a division between the lobes. The bottom of each segment bears one to four sori .

ecology

In the extreme south of its range, Adiantum jordanii is associated with species such as Diplacus aridus and Daucus pusillus .

In the United States applies Adiantum jordanii has received the fungal Oomycetes Phytophthora ramorum , which the Sudden Oak Death causes. The USDA enforces import controls, whereby areas with Sudden Oak Death (namely the states of California, Oregon, New York) are monitored more intensively. For the purchase of Adiantum jordanii must plant specimens a guarantee of origin and a phytosanitary certificate be settled. The USDA warns against taking specimens from the wild .

use

From horticultural production, Adiantum jordanii is used in the temperate, subtropical and Mediterranean areas as an ornamental plant in parks and gardens.

Individual evidence

↑ Maarten JM Christenhusz, Xian-Chun Zhang, Harald Schneider: A linear sequence of extant families and genera of lycophytes and ferns . ( PDF ) In: Phytotaxa . 19, 2011, pp. 7-54.
↑ USDA Plants Profile: Adiantum jordanii . US Department of Agriculture. 2009.
^ Adiantum jordanii . University of California. 1993.
↑ C. Michael Hogan: Coastal Woodfern (Dryopteris arguta) , Global Twitcher (ed. N. Stromberg) . 2008. Archived from the original on July 11, 2011.
↑ Import prohibited plants and areas related to sudden oak death . USDA Import Control Notice. Archived from the original on June 20, 2010.

Web links

Commons : Adiantum jordanii - collection of images, videos and audio files

Photo gallery

[Christenhusz2011-1] Maarten JM Christenhusz, Xian-Chun Zhang, Harald Schneider: A linear sequence of extant families and genera of lycophytes and ferns . ( PDF ) In: Phytotaxa . 19, 2011, pp. 7-54.

[USDA_PlantsProfile-2] USDA Plants Profile: Adiantum jordanii . US Department of Agriculture. 2009.

[JepsonManual-3] Adiantum jordanii . University of California. 1993.

[Hogan2008-4] C. Michael Hogan: Coastal Woodfern (Dryopteris arguta) , Global Twitcher (ed. N. Stromberg) . 2008. Archived from the original on July 11, 2011.

[USDA_ForestProducts-5] Import prohibited plants and areas related to sudden oak death . USDA Import Control Notice. Archived from the original on June 20, 2010.