Facts about Hairy False Cloak Fern (Argyrochosma incana)

Cheilanthes incana (C. Presl) Mickel & Beitel:
Guatemala (Mesoamerica)
Mexico (Mesoamerica)
Caribbean (Caribbean)

Mickel, J. T. & J. M. Beitel. 1988. Pteridophyte Flora of Oaxaca, Mexico. Mem. New York Bot. Gard. 46: 1–568. http://www.tropicos.org/Reference/9402

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Gymnogramma candida Mett.:
Mexico (Mesoamerica)

SPECIMEN BASED RECORD. Published protolog data. http://www.tropicos.org/Reference/9990002

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Notholaena incana C. Presl:
Chile (South America)
Guatemala (Mesoamerica)
Mexico (Mesoamerica)
United States (North America)
Caribbean (Caribbean)

SPECIMEN BASED RECORD. Published protolog data. http://www.tropicos.org/Reference/9990002
Lellinger, D. B. 1985. A Field Manual of the Ferns and Fern Allies of the United States and Canada. 389 pp. http://www.tropicos.org/Reference/1316
Smith, A. R. 1981. Pteridophytes. 2: 1–370. In D. E. Breedlove Fl. Chiapas. California Academy of Sciences, San Francisco. http://www.tropicos.org/Reference/6014
Breedlove, D. E. 1986. Flora de Chiapas. Listados Floríst. México 4: i–v, 1–246. http://www.tropicos.org/Reference/513
Stolze, R. G. 1981. Ferns and fern allies of Guatemala. Part II. Polypodiaceae. Fieldiana, Bot., n.s. 6: 1–522. http://www.tropicos.org/Reference/6644

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National Distribution

United States

Origin: Unknown/Undetermined

Regularity: Regularly occurring

Currently: Unknown/Undetermined

Confidence: Confident

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Global Range: Arizona and New Mexico, through Mexico, to Central America (Arizona ranking form 5/99).

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Morphology

Comments

Argyrochosma incana has been collected at about 10 localities in the flora area, all within 50 km of the Mexican border. Most herbarium specimens were previously identified as A . limitanea , which is easily distinguished from A . incana by the characteristics given in the key. In addition, all known plants of A . limitanea have 32 spores per sporangium; those of A . incana have 64. Although A . incana shows considerable morphologic and biochemical diversity in Mexico, populations in the United States are relatively uniform.

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Description

Stem scales brown. Leaves 5--20 cm. Petiole black, 0.75--2 mm diam. Blade ovate, 3--4-pinnate proximally, leathery, abaxially covered by dense, white farina, adaxially glabrous; rachis rounded to slightly flattened adaxially. Pinna costae straight or nearly so, branches not arising from prominent angles. Ultimate segments articulate, dark color of stalks stopping abruptly at bases; segment margins plane, never concealing sporangia; veins obscure adaxially. Sporangia following secondary veins for most of length, containing 64 spores. 2 n = 54.

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Diagnostic Description

Synonym

Notholaena incana C. Presl, Reliq. Haenk. 1: 19, plate 1, fig. 2. 1825

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Habitat

Habitat & Distribution

Sporulating summer--fall. Sheltered cracks and ledges on canyon walls; restricted to rocks of volcanic origin in the flora; 1200--1700 m; Ariz., N.Mex.; Mexico; West Indies in Hispaniola; Central America in Guatemala.

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Molecular Biology

Statistics of barcoding coverage: Argyrochosma incana

Barcode of Life Data Systems (BOLDS) Stats
Public Records: 3
Species: 3
Species With Barcodes: 1

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Source: Barcode of Life Data Systems (BOLD)

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Conservation Status

National NatureServe Conservation Status

United States

Rounded National Status Rank: NNR - Unranked

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NatureServe Conservation Status

Rounded Global Status Rank: G5 - Secure

Reasons: Ranges from Arizona and New Mexico in the U.S., through Mexico, to Central America.

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