Campyloneurum amphostenon (Kunze ex Klotzsch) Fée, Mém. Foug.

Smith, Alan R., Kessler, Michael, León, Blanca, Almeida, Thaís Elias, Jiménez-Pérez, Iván & Lehnert, Marcus, 2018, Prodromus of a fern flora for Bolivia. XL. Polypodiaceae, Phytotaxa 354 (1), pp. 448-450 : 448-450

publication ID	https://doi.org/ 10.11646/phytotaxa.354.1.1
persistent identifier	https://treatment.plazi.org/id/03B6DA7F-7B6E-191D-E9AD-02B8FDE1FE25
treatment provided by	Felipe
scientific name	Campyloneurum amphostenon (Kunze ex Klotzsch) Fée, Mém. Foug.
status

Treatment

Campyloneurum amphostenon (Kunze ex Klotzsch) Fée, Mém. Foug. View in CoL 5[Gen. Filic.]: 258. 1852.

= Polypodium amphostenon Kunze ex Klotzsch, Linnaea View in CoL 20: 399. 1847.

= Polypodium leuconeuron (Fée) Christ var. latifolium Rosenst., Repert. View in CoL Spec. Nov. Regni Veg. 11: 58. 1912.

Range: —Antilles; southern Florida, Mexico to Venezuela and Bolivia ( CH, CO, LP, SC).

Ecology: —Very common, saxicolous or epiphyte; 2100–3500 m.

Notes: —This species forms a complex with C. asplundii , C. lorentzii , C. densifolium , and C. solutum . Two varieties have been recognized within C. amphostenon on the basis of cellular arrangement in the rhizome scales ( var. amphostenon with straight cell walls and all cells along main axes; and var. irregulare with irregular cell walls and cells arranged in different directions) ( León 1993). There are many intermediate conditions for this character, and these varieties are not recognized in this treatment. Some populations of C. amphostenon growing above 2500 m in open, exposed areas have leaves more closely placed, laminae with revolute margins, and rhizome scales showing both regular and irregular cellular arrangement.

Kingdom	Plantae
Phylum	Tracheophyta
Class	Polypodiopsida
Order	Polypodiales
Family	Polypodiaceae
Genus	Campyloneurum