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Locally common along roadside and in "gumland scrub". Generally a scarce species around Auckland now having succumbed to gross habitat modification, weed killers and ignorance (this species is indigenous NOT naturalised - see de Lange & Murray 2002)

de Lange, P.J.; Murray, B.G. 2002: Contributions to a chromosome atlas of the New Zealand flora—37. Miscellaneous families. New Zealand Journal of Botany 40: 1-23

Synonym = Trichomanes caudatum

A second record for mainland New Zealand and a first for the Auckland region, previously known only from Kerikeri. Epiphyte on riparian Dicksonia squarrosa with Hymenodon pilifer, Tmesipteris tannensis, Lepraria ulrikii and other bryophytes. Under Kunzea robusta, Pseudopanax arboreus surrounded by sparse Geniostoma ligustrifolium var. ligustrifolium seedlings and occasional patch of Diploblechnum fraseri on ground. Only one tree fern with this filmy fern and only one other Dicksonia squarrosa seen. Abundant on the one tree, up to 2m high. With campanulate sori and long bristles.

Same population as: https://inaturalist.nz/observations/42946972

Thanks to @oaag1993 and @danielle522 for bringing this fern to my attention!

Only remaining NZ grass key outcome after these inputs:
Lower glume length: 4 mm
Upper gluten length: 6 mm
Spikelet length: 13 mm
4 florets per spikelet
Ligule: membrane
Lemma awn: one awn present
Awn length: 6 mm

Scattered occurrences in seasonally wet ground along the coast south east from the Orongorongo river mouth. Growing with eleocharis sps. and other isolepis sps.

This entity was renamed as Isolepis cernua var. platycarpa (S.T.Blake) Muasya (2002)

Plants growing under Melaleuca uncinata. Flowers are completely underground except for a ring of bracts pushing above the ground and leaf litter under the trees. Tiny flies were observed leaving the flower.

Flowers were gently excavated, bracts eased open. After photos were taken, the bracts were closed, sand and leaf litter repositioned around flower.

Very few of these plants are observed and classed as Threatened Flora (Declared Rare Flora — Extant).

Unfortunately during 1988 a wildfire burnt the area and the orchids have not been relocated at this location.

A few plants flowering on a steep bank above the stream under regenerating scrub. The second photograph is a closer one of the possible pollinator which had left by the time i managed to get the last shot.