Overview

Distribution

National Distribution

Puerto Rico

Origin: Unknown/Undetermined

Regularity: Regularly occurring

Currently: Unknown/Undetermined

Confidence: Confident

United States

Origin: Native

Regularity: Regularly occurring

Currently: Present

Confidence: Confident

Virgin Islands, U.S.

Origin: Unknown/Undetermined

Regularity: Regularly occurring

Currently: Unknown/Undetermined

Confidence: Confident

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Fla.; Mexico; West Indies in the Antilles; Central America; South America to Bolivia and Brazil.
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Physical Description

Morphology

Description

Roots proliferous. Stems erect, unbranched; scales brown throughout, linear-deltate, 1.2 × 0.1--0.3 mm, margins entire. Leaves monomorphic. Petiole green throughout, dull, 3--15(--20) cm, 1/3--2/3 length of blade; indument absent. Blade deltate, 1-pinnate, 7--12(--20) × 3--6(--9) cm, thick, papery, glabrous; base not tapered; apex attenuate, not rooting. Rachis green throughout, dull, glabrous. Pinnae in 4--8 pairs, linear-lanceolate; medial pinnae 30--70 × 7--15 mm, slightly curved, strongly excavated in proximal basiscopic 1/3; base with small acroscopic auricle; margins entire to dentate; apex attenuate. Veins free, obscure. Sori 2--9 pairs, medial, commonly 1--2 less on basiscopic side than on acroscopic side. Spores 64 per sporangium. 2 n = 72.
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Type Information

Isotype for Asplenium polymorphum M. Martens & Galeotti
Catalog Number: US 534115
Collection: Smithsonian Institution, National Museum of Natural History, Department of Botany
Verification Degree: Verified from the card file of type specimens
Preparation: Pressed specimen
Collector(s): H. G. Galeotti
Locality: E of Monserrat, Mexico, Central America
  • Isotype: Martens, M. & Galeotti, H. G. 1842. Nouv. Mem. Acad. Roy. Sci. Bruxelles. 15: 56.
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Ecology

Habitat

Comments: Epipetric on calcareous rocks or sometimes terrestrial on soils derived from calcareous rocks.

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Shaded limestone boulders, cliff ledges, grottoes, sinkholes; 0--50m.
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Molecular Biology and Genetics

Molecular Biology

Barcode data: Asplenium abscissum

The following is a representative barcode sequence, the centroid of all available sequences for this species.


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Statistics of barcoding coverage: Asplenium abscissum

Barcode of Life Data Systems (BOLDS) Stats
Public Records: 2
Specimens with Barcodes: 2
Species With Barcodes: 1
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Conservation

Conservation Status

National NatureServe Conservation Status

Puerto Rico

Rounded National Status Rank: NNR - Unranked

United States

Rounded National Status Rank: N2 - Imperiled

Virgin Islands, U.S.

Rounded National Status Rank: NNR - Unranked

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NatureServe Conservation Status

Rounded Global Status Rank: G3 - Vulnerable

Reasons: Occasional in Florida pennisula. Also in Greater and Lesser Antilles, Trinidad and continental tropical America from Mexico to Brazil and Bolivia. EGR supports GRANK of G4G5.

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Notes

Comments

Asplenium abscissum hybridizes with A . verecundum to produce the triploid hybrid, A . × curtissii .
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