Notogrammitis angustifolia subsp. nothofageti
Common name
strapfern
Synonyms
Grammitis magellanica subsp. nothofageti Parris
Family
Polypodiaceae
Flora category
Vascular – Native
Endemic taxon
No
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.
NOTASN
Current conservation status
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
Indigenous. New Zealand: North, Great Barrier, South and Chatham Islands. Also Australia (Victoria and Tasmania).
Habitat
Coastal to subalpine. Strictly montane to subalpine in the North island extending to the coast in Fiordland, and common in coastal forest on Chatham Island). Usually epiphytic in beech (Nothofagus spp.) forest, and in the northern part of its range in cloud forest often on tawheowheo (Quintinia serrata) or kamahi (Weinmannia racemosa).
Features
Tufted epiphytic (rarely rupestral or terrestrial) usually solitary fern. Rhizome erect to short-creeping; plant usually solitary, fronds erect; paleae light brown, lanceolate to narrowly lanceolate, acute to broadly acute, 1.2-3.7 × 0.25-0.75 mm. Stipe ± indistinct, winged to base; stipe hairs absent or very rare, whitish, to 1.0 mm long. Lamina (16-)33-81(-136) × (2-) 2.4-4.2(-5) mm linear-oblanceolate, acute to broadly acute; lamina hairs absent or very rare, similar to those of stipe; texture thinly coriaceous to coriaceous; veins visible to invisible, endings not darkened; midrib slightly raised below, darker than lamina. Sori subglobose to oblong, oblique or nearly parallel to midrib, in upper half to two-thirds of frond but not usually in apex, 2-19 pairs, 1.5-4.0 × 1.0-2.0 mm, sometimes ± confluent and covering most of frond under surface when mature; soral vein prolonged or not beyond sorus but not as long as basiscopic vein, neither reaching the margin. Sporangia (200-)226.4-299.0(-370) microns long; indurated cells of annulus (10-)10.4-12.4(-15). Spores (25-)34.3-47.5(-58) microns diameter.
Similar taxa
Distinguished by the combination of having a tufted, shortly creeping growth habit, fronds that < 100 mm long, are glabrous (or nearly so), and a paleae that is < 6 mm long. In N. angustifolia subsp. nothofageti the plants are often solitary (never found in colonial masses), the fronds tend to be mostly erect and the vein ends are not obviously darkened. Small specimens of Notogrammitis angustifolia subsp. nothofageti can be confused with N. crassior, which in New Zealand is a mostly rupestral species that has a widely creeping rhizome, and mat-forming growth habit, and the scales of this species are usually shorter and broader than those of N. angusitfolia subsp. nothofageti (see comments by Parris 1998).
Flowering
Not applicable - spore producing
Flower colours
No flowers
Fruiting
Not applicable - spore producing
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.
angustifolia: From the Latin angustus ‘narrow, constricted’ and folius ‘leaf’, meaning narrow-leaved
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 (Updated 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.
NZPCN Fact Sheet citation
Please cite as: de Lange, P.J. (Year at time of access): Notogrammitis angustifolia subsp. nothofageti Fact Sheet (content continuously updated). New Zealand Plant Conservation Network. https://www.nzpcn.org.nz/flora/species/notogrammitis-angustifolia-subsp-nothofageti/ (Date website was queried)