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  4. Notogrammitis givenii

Notogrammitis givenii

Bealey chasm, Arthurs pass. March.<br>Photographer: John Smith-Dodsworth, Licence: <a target='_blank' href='https://creativecommons.org/licenses/by-nc/4.0'>CC BY-NC</a>.
Bealey chasm, Arthurs pass. March.<br>Photographer: John Smith-Dodsworth, Licence: <a target='_blank' href='https://creativecommons.org/licenses/by-nc/4.0'>CC BY-NC</a>.
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Common name

strapfern

Synonyms

Grammitis givenii (Parris) Parris

Family

Polypodiaceae

Authority

Grammitis givenii Parris

Flora category

Vascular – Native

Endemic taxon

Yes

Endemic genus

No

Endemic family

No

Structural class

Ferns

NVS code

The National Vegetation Survey (NVS) Databank is a physical archive and electronic databank containing records of over 94,000 vegetation survey plots - including data from over 19,000 permanent plots. NVS maintains a standard set of species code abbreviations that correspond to standard scientific plant names from the Ngä Tipu o Aotearoa - New Zealand Plants database.

NOTGIV

Current conservation status

  • Conservation status of New Zealand indigenous vascular plants, 2017

The conservation status of all known New Zealand vascular plant taxa at the rank of species and below were reassessed in 2017 using the New Zealand Threat Classification System (NZTCS). This report includes a statistical summary and brief notes on changes since 2012 and replaces all previous NZTCS lists for vascular plants. Authors: By Peter J. de Lange, Jeremy R. Rolfe, John W. Barkla, Shannel P. Courtney, Paul D. Champion, Leon R. Perrie, Sarah M. Beadel, Kerry A. Ford, Ilse Breitwieser, Ines Schönberger, Rowan Hindmarsh-Walls, Peter B. Heenan and Kate Ladley.

2012 | Not Threatened

Previous conservation statuses

2009 | Not Threatened

2004 | Not Threatened

Distribution

Endemic. New Zealand: North, South, Chatham, Campbell and Auckland Islands, from the Raukumara Range (Mt Honokawa) south (scarce in the North Island).

Habitat

Coastal to alpine (strictly montane in the North and South Islands) but extending to the coast on the Chathams and on the subantarctic coast. Commonly found on mostly south facing rocks and cliff faces, within crevices or joints or fringing cave entrances, within forest, scrub or alpine tussock grassland.

Features

Rupestral fern. Rhizome short-creeping to long-creeping; paleae pale brown, lanceolate, acute, 1.6-5.9 × 0.6-1.9 mm. Stipes pronounced, 1-18 mm long; stipe hairs whitish to pale red-brown, rare to common, 0.3-2.0 mm long. Lamina (11—)19—47(—99) × (3-)3.8-7.0(-10) mm; spathulate-oblanceolate to oblanceolate, obtuse to acute, lamina hairs whitish, sparse, on midribs only, more common in young fronds, to 1.2 mm long; texture coriaceous; veins invisible, endings not darkened; midrib somewhat raised below, ± concolorous with lamina. Sori subglobose to oblong, oblique, in upper half to third of frond, 1-10 pairs, 2.0-6.5 X 1,0-2.0 mm; soral vein ending within the sorus or extending a little beyond it, somewhat shorter than basiscopic vein, neither reaching the margin. Sporangia (190-)222.2-312.0(-390) microns long; indurated cells of annulus (10-)11.0-13.6(-17). Spores (25.0-)31.0-41.6(-50.0) microns diameter.

Similar taxa

Distinguished from the other New Zealand species of Notogrammitis by the combination of having a creeping rhizome, fronds distinctly stipitate, 19-57 × 3.8-7.0 mm, these usually bearing > 3 pairs of sori; with the sori 2.0-6.5 mm long and subglobose to oblong.

Flowering

Not applicable - spore producing

Flower colours

No flowers

Fruiting

Not applicable - spore producing

Life cycle

Minute spores are wind dispersed (Thorsen et al., 2009).

Propagation technique

Difficult. Should not be removed from the wild.

Etymology

notogrammitis: From the Greek noto- ‘southern’ and gramma ‘line’, referring to this new genus of southern strap ferns which were previously in Grammitis.

Where To Buy

Not commercially available

Taxanomic notes

The New Zealand species of Grammitis along with Ctenopteris heterophylla and one Australian Grammitis (G. garrettii) one Lord Howe (G. diminuta) and one species endemic to the Moluccas and Indonesian (G. kairatuensis) have traditionally been placed in Grammitis (Parris & Given 1976; Parris 1998). However, these species (with the exception of G. diminuta, G. kairatuensis and G. stenophylla; B.S.Parris pers. comm. to P.J. de Lange January 2011) have now been transferred to a new genus, Notogrammitis Parris (Perrie & Parris 2012).

Attribution

Fact sheet prepared for NZPCN by P.J. de Lange (25 April 2011). Description from Parris & Given (1976)

References and further reading

Parris, B.S. 1998: Grammitidaceae. Flora of Australia 48: 450-468.

Parris, B.S.; Given, D.R. 1976: A taxonomic revision of Grammitis Sw. (Grammitidaceae: Filicales) in New Zealand. New Zealand Journal of Botany 14: 85-111.

Perrie, L.R.; Parris, B.S. 2012: Chloroplast DNA sequences indicate the grammitid ferns (Polypodiaceae) in New Zealand belong to a single clade, Notogrammitis gen. nov. New Zealand Journal of Botany 50: 457-472.

Thorsen, M. J.; Dickinson, K. J. M.; Seddon, P. J. 2009. Seed dispersal systems in the New Zealand flora. Perspectives in Plant Ecology, Evolution and Systematics 11: 285-309

NZPCN Fact Sheet citation

Please cite as: de Lange, P.J. (Year at time of access): Notogrammitis givenii Fact Sheet (content continuously updated). New Zealand Plant Conservation Network. https://www.nzpcn.org.nz/flora/species/notogrammitis-givenii/ (Date website was queried)

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