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Overview

Distribution

Localities documented in Tropicos sources

Pycnodoria cretica (L.) Small:
United States (North America)

Note: This information is based on publications available through Tropicos and may not represent the entire distribution. Tropicos does not categorize distributions as native or non-native.
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Localities documented in Tropicos sources

Pteris laurea Desv.:
Madagascar (Africa & Madagascar)

Note: This information is based on publications available through Tropicos and may not represent the entire distribution. Tropicos does not categorize distributions as native or non-native.
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Localities documented in Tropicos sources

Pteris triphylla M. Martens & Galeotti:
Mexico (Mesoamerica)

Note: This information is based on publications available through Tropicos and may not represent the entire distribution. Tropicos does not categorize distributions as native or non-native.
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Localities documented in Tropicos sources

Pteris cretica L.:
Argentina (South America)
Brazil (South America)
Bhutan (Asia)
Cambodia (Asia)
Costa Rica (Mesoamerica)
El Salvador (Mesoamerica)
Guatemala (Mesoamerica)
Honduras (Mesoamerica)
India (Asia)
Japan (Asia)
Kriti (Europe)
Laos (Asia)
Mexico (Mesoamerica)
Nicaragua (Mesoamerica)
Nepal (Asia)
Panama (Mesoamerica)
Peru (South America)
Philippines (Asia)
Sri Lanka (Asia)
United States (North America)
Vietnam (Asia)
Caribbean (Caribbean)
China (Asia)

Note: This information is based on publications available through Tropicos and may not represent the entire distribution. Tropicos does not categorize distributions as native or non-native.
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National Distribution

United States

Origin: Exotic

Regularity: Regularly occurring

Currently: Unknown/Undetermined

Confidence: Confident

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Global Range: Indigenous to Hawaii, but first described from Crete (Valier 1995).

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Physical Description

Morphology

Description

Stems slender, creeping, sparingly scaly; scales dark brown to chestnut brown. Leaves clustered to closely spaced, to 1 m. Petiole straw-colored to light brown distally, darker proximally, 10--50 cm, base sparsely scaly. Blade irregularly ovate, primarily and irregularly pedately divided, 10--30 × 6--25 cm; rachis not winged; only terminal pinna decurrent on rachis. Pinnae 1--3 pairs, well separated, blade often 5-parted with terminal pinna and 2 lateral pairs of pinnae remaining green through winter, not articulate; sterile pinnae to 25 × 0.8--1.5 cm, serrulate; fertile pinnae narrower than sterile pinnae, to ca. 11 mm wide, spiny-serrate; base acute acroscopically and decurrent (sometimes narrowly and barely so) basiscopically, glabrous; proximal pinnae with 1 (rarely 2) basiscopic lobes. Veins free, simple or forked. Sori narrow, blade tissue exposed abaxially.
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Diagnostic Description

Synonym

Pycnodoria cretica (Linnaeus) Small
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Ecology

Habitat

Comments: Terrestrial, in dry or wet forests up to 915m (Valier 1995).

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Molecular Biology and Genetics

Molecular Biology

Barcode data: Pteris cretica

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


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Statistics of barcoding coverage: Pteris cretica

Barcode of Life Data Systems (BOLDS) Stats
Public Records: 3
Specimens with Barcodes: 13
Species With Barcodes: 1
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Conservation

Conservation Status

National NatureServe Conservation Status

United States

Rounded National Status Rank: NNA - Not Applicable

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NatureServe Conservation Status

Rounded Global Status Rank: G5 - Secure

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Wikipedia

Pteris cretica

Pteris cretica, the Cretan brake fern, is a species of evergreen fern in the family Pteridaceae, native to Europe, Asia and Africa.

Description[edit source | edit]

The fern grows to 75 cm (30 in) tall by 60 cm (24 in) broad. It has arching pinnate fronds each bearing up to five pinnae.[1][2]

Cultivation[edit source | edit]

Pteris cretica is cultivated widely by plant nurseries. It is used in gardens in the ground and as a potted plant, and as a houseplant. The variety with variegated foliage, Pteris cretica var. albolineata, is also widely used, brightening shade gardens.

Both types thrive year round outdoors in subtropical climates, such as California. With a minimum temperature of 2 °C (36 °F), both require protection from frost, though the species is hardier and can be grown outdoors during the summer months in cold climates.[1]

The species, [3] and the albolineata' variety, [4] have both gained the Royal Horticultural Society's Award of Garden Merit.

References[edit source | edit]

  1. ^ a b RHS A-Z encyclopedia of garden plants. United Kingdom: Dorling Kindersley. 2008. p. 1136. ISBN 1405332964. 
  2. ^ "Missour Botanical Garden - Pteris cretica". Retrieved 27 June 2013. 
  3. ^ "RHS Plant Selector - Pteris cretica". Retrieved 27 June 2013. 
  4. ^ "RHS Plant Selector - Pteris cretica var. albolineata". Retrieved 27 June 2013. 
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Notes

Comments

Pteris cretica is almost pantropical in distribution (C. V. Morton 1957). Because this species is so commonly and widely cultivated and appears to escape easily in warmer regions, its native range is uncertain. 

 Young leaves of young plants of Pteris multifida may key to P . cretica because only the terminal pinnae may be decurrent on the rachis as in P . cretica . Juveniles of P . multifida can be separated by proximal pinnae with long-attenuate apices and thinner-textured leaves than P . cretica . Juveniles of P . cretica have proximal pinnae with acute to blunt or nearly rounded apices and thicker-textured leaves.

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