Facts about Powdery False Cloak Fern (Argyrochosma dealbata)

Distribution

Learn more about this article

Argyrochosma dealbata (Pursh) Windham:
United States (North America)

Flora of North America Editorial Committee, e. 1993. Pteridophytes and Gymnosperms. 2: i–xvi, 1–475. In Fl. N. Amer. Oxford University Press, New York. http://www.tropicos.org/Reference/10884

Creative Commons Attribution Non Commercial Share Alike 3.0 (CC BY-NC-SA 3.0)

Source: Missouri Botanical Garden

Trusted

Article rating from 0 people

Average rating: 2.5 of 5

Comment on or rate this article

Learn more about this article

Notholaena dealbata (Pursh) Kunze:
United States (North America)

Anonymous. 1986. List-Based Rec., Soil Conserv. Serv., U.S.D.A. Database of the U.S.D.A., Beltsville. http://www.tropicos.org/Reference/1103
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

Source: Missouri Botanical Garden

Trusted

Article rating from 0 people

Average rating: 2.5 of 5

Comment on or rate this article

National Distribution

Learn more about this article

United States

Origin: Unknown/Undetermined

Regularity: Regularly occurring

Currently: Unknown/Undetermined

Confidence: Confident

Creative Commons Attribution Non Commercial 3.0 (CC BY-NC 3.0)

Source: NatureServe

Trusted

Article rating from 0 people

Average rating: 2.5 of 5

Comment on or rate this article

Morphology

Comments

Learn more about this article

The distinctions between Argyrochosma dealbata and A . limitanea are subtle but apparently absolute. Although both occur in Texas, their ranges do not overlap. Despite the morphologic similarities, isozyme analyses indicate that A . dealbata , a diploid species, was not involved in the origin of polyploid A . limitanea .

Flora of North America @ eFloras.org

Source: Missouri Botanical Garden

Trusted

Article rating from 0 people

Average rating: 2.5 of 5

Comment on or rate this article

Description

Learn more about this article

Stem scales brown. Leaves 3--15 cm. Petiole chestnut brown, 0.50--0.75 mm diam. Blade deltate, 3--5-pinnate proximally, somewhat herbaceous, abaxially covered by whitish farina, adaxially glabrous or sparsely glandular; rachis rounded to slightly flattened adaxially. Pinna costae straight or nearly so, branches not arising from prominent angles. Ultimate segments not articulate, dark color of stalks continuing into segment bases abaxially; segment margins recurved, often partially concealing sporangia; veins often visible adaxially. Sporangia submarginal, borne on distal 1/3 of secondary veins, containing 64 spores. 2 n = 54.